diff --git a/README.md b/README.md
index fa0acdb..68ebee2 100644
--- a/README.md
+++ b/README.md
@@ -29,6 +29,7 @@ Options:
   -v, --version            output the version number
   -c, --country <type>     Country code for account (default: "US")
   -l, --language <type>    Language code for account (default: "en-US")
+  -t, --token <type>       Refresh token (optional)
   -s, --state-path <type>  State file path (default: "wideq-state.json")
   -h, --help               output usage information
 
@@ -56,14 +57,14 @@ polling...
 
 ## Implementation Status
 
-| *Device* | *Implementation* | *Control* | *Status* |
+| *Device* | *Implementation* | *Status* | *Control* |
 | --- | --- | --- | --- |
 | Dehumidifier | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: |
 | AC | :heavy_check_mark: | :warning: needs testing | :warning: needs testing |
 | Refrigerator | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: |
-| Dishwasher | :heavy_check_mark: | :x: | :x: |
-| Dryer | :heavy_check_mark: | :x: | :x: |
-| Washer | :heavy_check_mark: | :x: | :x: |
+| Dishwasher | :heavy_check_mark: | :warning: needs testing | :x: |
+| Dryer | :heavy_check_mark: | :warning: needs testing | :x: |
+| Washer | :heavy_check_mark: | :warning: needs testing | :x: |
 
 ## Credits
 
diff --git a/lib/cli.ts b/lib/cli.ts
index b45df73..e48783f 100644
--- a/lib/cli.ts
+++ b/lib/cli.ts
@@ -22,6 +22,7 @@ const input = (question: string) => new Promise<string>((resolve) => {
 const options = {
   country: constants.DEFAULT_COUNTRY,
   language: constants.DEFAULT_LANGUAGE,
+  refreshToken: '',
   statePath: 'wideq-state.json',
 };
 
@@ -32,6 +33,8 @@ program
   .on('option:country', (value) => options.country = value)
   .option('-l, --language <type>', 'Language code for account', constants.DEFAULT_LANGUAGE)
   .on('option:language', (value) => options.language = value)
+  .option('-t, --token <type>', 'Refresh token')
+  .on('option:token', (value) => options.refreshToken = value)
   .option('-s, --state-path <type>', 'State file path', 'wideq-state.json')
   .on('option:statePath', (value) => options.statePath = value);
 
@@ -39,9 +42,9 @@ program
   .command('auth')
   .description('Authenticate')
   .action(async () => {
-    const { country, language, statePath } = options;
+    const { country, language, refreshToken, statePath } = options;
 
-    const client = await init(country, language, statePath);
+    const client = await init(country, language, refreshToken, statePath);
 
     console.info('Refresh token: ' + client.auth.refreshToken);
 
@@ -53,8 +56,8 @@ program
   .command('ls', { isDefault: true })
   .description('List devices')
   .action(async () => {
-    const { country, language, statePath } = options;
-    const client = await init(country, language, statePath);
+    const { country, language, refreshToken, statePath } = options;
+    const client = await init(country, language, refreshToken, statePath);
 
     for (const device of client.devices) {
       console.info(String(device));
@@ -68,8 +71,8 @@ program
   .command('monitor <deviceId>')
   .description('Monitor any device, displaying generic information about its status.')
   .action(async (deviceId: string) => {
-    const { country, language, statePath } = options;
-    const client = await init(country, language, statePath);
+    const { country, language, refreshToken, statePath } = options;
+    const client = await init(country, language, refreshToken, statePath);
 
     const dev = await client.getDevice(deviceId);
     saveState(statePath, client);
@@ -121,7 +124,7 @@ async function authenticate(gateway: Gateway) {
   return Auth.fromUrl(gateway, callbackUrl);
 }
 
-async function init(country: string, language: string, stateFilePath?: string) {
+async function init(country: string, language: string, refreshToken: string, stateFilePath?: string) {
   let state: any = {};
 
   if (stateFilePath) {
@@ -132,12 +135,14 @@ async function init(country: string, language: string, stateFilePath?: string) {
     }
   }
 
-  const client = Client.loadFromState({
-    country,
-    language,
+  const client = refreshToken ?
+    await Client.loadFromToken(refreshToken, country, language) :
+    Client.loadFromState({
+      country,
+      language,
 
-    ...state,
-  });
+      ...state,
+    });
 
   if (!client.gateway) {
     client.gateway = await Gateway.discover(country, language);
diff --git a/lib/client.ts b/lib/client.ts
index da15b0e..d2570e4 100644
--- a/lib/client.ts
+++ b/lib/client.ts
@@ -1,21 +1,25 @@
-import { ACDevice } from './devices/ac';
-import { DishwasherDevice } from './devices/dishwasher';
 import { Auth } from './core/auth';
-import { Gateway } from './core/gateway';
-import { Session } from './core/session';
 import * as constants from './core/constants';
+import { DeviceType } from './core/constants';
 import { Device } from './core/device';
 import { DeviceInfo } from './core/device-info';
+import { Gateway } from './core/gateway';
+import { LangPackModel } from './core/lang-pack-model';
+import { LangPackProduct } from './core/lang-pack-product';
 import { ModelInfo } from './core/model-info';
+import { Session } from './core/session';
+import { ACDevice } from './devices/ac';
 import { DehumidifierDevice } from './devices/dehumidifier';
-import { RefrigeratorDevice } from './devices/refrigerator';
+import { DishwasherDevice } from './devices/dishwasher';
 import { DryerDevice } from './devices/dryer';
+import { RefrigeratorDevice } from './devices/refrigerator';
 import { WasherDevice } from './devices/washer';
-import { DeviceType } from './core/constants';
 
 export class Client {
   public devices: DeviceInfo[] = [];
   public modelInfo: { [key: string]: any } = {};
+  public langPackProduct: { [key: string]: any } = {};
+  public langPackModel: { [key: string]: any } = {};
 
   public constructor(
     public gateway: Gateway,
@@ -37,7 +41,7 @@ export class Client {
   }
 
   public static loadFromState(state: {
-    [key in 'gateway' | 'auth' | 'session' | 'modelInfo' | 'country' | 'language']: any;
+    [key in 'gateway' | 'auth' | 'session' | 'modelInfo' | 'country' | 'language' | 'langPackProduct' | 'langPackModel']: any;
   }) {
     let gateway: Gateway;
     let auth: Auth;
@@ -45,6 +49,8 @@ export class Client {
     let modelInfo: Client['modelInfo'] = {};
     let country: string = constants.DEFAULT_COUNTRY;
     let language: string = constants.DEFAULT_LANGUAGE;
+    let langPackProduct: Client['langPackProduct'] = {};
+    let langPackModel: Client['langPackModel'] = {};
 
     for (const key of Object.keys(state)) {
       switch (key) {
@@ -83,6 +89,14 @@ export class Client {
         case 'language':
           language = state.language;
           break;
+
+        case 'langPackProduct':
+          langPackProduct = state.langPackProduct;
+          break;
+
+        case 'langPackModel':
+          langPackModel = state.langPackModel;
+          break;
       }
     }
 
@@ -94,6 +108,8 @@ export class Client {
       language,
     );
     client.modelInfo = modelInfo;
+    client.langPackProduct = langPackProduct;
+    client.langPackModel = langPackModel;
 
     return client;
   }
@@ -125,6 +141,9 @@ export class Client {
 
       country: this.country,
       language: this.language,
+
+      langPackProduct: this.langPackProduct,
+      langPackModel: this.langPackModel,
     };
   }
 
@@ -149,7 +168,9 @@ export class Client {
       throw new Error(`Device not found: ${deviceInfo}`);
     }
 
-    const modelInfo = await this.getModelInfo(deviceInfo);
+    await this.getModelInfo(deviceInfo);
+    await this.getLangPackProduct(deviceInfo);
+    await this.getLangPackModel(deviceInfo);
 
     switch (deviceInfo.data.deviceType) {
       case DeviceType.AC:
@@ -187,4 +208,22 @@ export class Client {
 
     return new ModelInfo(this.modelInfo[url]);
   }
+
+  public async getLangPackProduct(device: DeviceInfo) {
+    const url = device.langPackProductUrl;
+    if (!(url in this.langPackProduct)) {
+      this.langPackProduct[url] = await device.loadLangPackProduct();
+    }
+
+    return new LangPackProduct(this.langPackProduct[url]);
+  }
+
+  public async getLangPackModel(device: DeviceInfo) {
+    const url = device.langPackModelUrl;
+    if (!(url in this.langPackModel)) {
+      this.langPackModel[url] = await device.loadLangPackModel();
+    }
+
+    return new LangPackModel(this.langPackModel[url]);
+  }
 }
diff --git a/lib/core/auth.ts b/lib/core/auth.ts
index 69ed4a5..0e0f694 100644
--- a/lib/core/auth.ts
+++ b/lib/core/auth.ts
@@ -1,14 +1,14 @@
-import { TokenError } from './errors';
-import { Session } from './session';
-import { URL, resolve as resolveUrl } from 'url';
-import * as qs from 'qs';
 import * as assert from 'assert';
-import * as crypto from 'crypto';
+import crypto from 'crypto';
+import { DateTime } from 'luxon';
+import * as qs from 'qs';
+import { resolve as resolveUrl, URL } from 'url';
 
-import { Gateway } from './gateway';
 import * as constants from './constants';
+import { TokenError } from './errors';
+import { Gateway } from './gateway';
 import { requestClient } from './request';
-import { DateTime } from 'luxon';
+import { Session } from './session';
 
 export class Auth {
   public constructor(
diff --git a/lib/core/constants.ts b/lib/core/constants.ts
index eb6c320..237a7db 100644
--- a/lib/core/constants.ts
+++ b/lib/core/constants.ts
@@ -22,12 +22,14 @@ export enum DeviceType {
   MICROWAVE = 302,
   COOKTOP = 303,
   HOOD = 304,
-  /** Includes heat pumps, etc., possibly all HVAC devices. */
-  AC = 401,
+  AC = 401, // Includes heat pumps, etc., possibly all HVAC devices.
   AIR_PURIFIER = 402,
   DEHUMIDIFIER = 403,
-  /** Robot vacuum cleaner? */
-  ROBOT_KING = 501,
+  ROBOT_KING = 501, // This is Robotic vacuum cleaner
+  TV = 701,
+  BOILER = 801,
+  SPEAKER = 901,
+  HOMEVU = 902,
   ARCH = 1001,
   MISSG = 3001,
   SENSOR = 3002,
@@ -38,4 +40,7 @@ export enum DeviceType {
   IOT_DUST_SENSOR = 3006,
   EMS_AIR_STATION = 4001,
   AIR_SENSOR = 4003,
+  PURICARE_AIR_DETECTOR = 4004,
+  V2PHONE = 6001,
+  HOMEROBOT = 9000,
 }
diff --git a/lib/core/device-info.ts b/lib/core/device-info.ts
index e86c886..17aed02 100644
--- a/lib/core/device-info.ts
+++ b/lib/core/device-info.ts
@@ -5,6 +5,9 @@ export interface DeviceData {
   modelNm: string;
   deviceId: string;
   modelJsonUrl: string;
+  langPackProductTypeUri: string;
+  langPackModelUri: string;
+  macAddress: string;
   alias: string;
   deviceType: DeviceType;
 }
@@ -19,6 +22,14 @@ export class DeviceInfo {
     return requestClient.get(this.modelInfoUrl).then(resp => resp.data);
   }
 
+  public async loadLangPackProduct() {
+    return this.langPackProductUrl && requestClient.get(this.langPackProductUrl).then(resp => resp.data);
+  }
+
+  public async loadLangPackModel() {
+    return this.langPackModelUrl && requestClient.get(this.langPackModelUrl).then(resp => resp.data);
+  }
+
   public get modelId() {
     return this.data.modelNm;
   }
@@ -31,6 +42,18 @@ export class DeviceInfo {
     return this.data.modelJsonUrl;
   }
 
+  public get langPackProductUrl() {
+    return this.data.langPackProductTypeUri;
+  }
+
+  public get langPackModelUrl() {
+    return this.data.langPackModelUri;
+  }
+
+  public get macAddress() {
+    return this.data.macAddress;
+  }
+
   public get name() {
     return this.data.alias;
   }
diff --git a/lib/core/device.ts b/lib/core/device.ts
index 2eb967e..7dd53ef 100644
--- a/lib/core/device.ts
+++ b/lib/core/device.ts
@@ -2,10 +2,19 @@ import { Monitor } from './monitor';
 
 import { Client } from '../client';
 import { DeviceInfo } from './device-info';
+import { LangPackModel } from './lang-pack-model';
+import { LangPackProduct } from './lang-pack-product';
 import { ModelInfo } from './model-info';
 
+export enum OnOffEnum {
+  OFF = '@CP_OFF_EN_W',
+  ON = '@CP_ON_EN_W',
+}
+
 export class Device {
   public model!: ModelInfo;
+  public langPackProduct!: LangPackProduct;
+  public langPackModel!: LangPackModel;
   public monitor?: Monitor;
 
   public constructor(
@@ -20,6 +29,8 @@ export class Device {
 
   public async load() {
     this.model = await this.client.getModelInfo(this.device);
+    this.langPackProduct = await this.client.getLangPackProduct(this.device);
+    this.langPackModel = await this.client.getLangPackModel(this.device);
   }
 
   public async setControl(key: string, value: any) {
diff --git a/lib/core/gateway.ts b/lib/core/gateway.ts
index 8e59cb7..237b99e 100644
--- a/lib/core/gateway.ts
+++ b/lib/core/gateway.ts
@@ -1,9 +1,9 @@
-import * as url from 'url';
 import * as qs from 'qs';
+import * as url from 'url';
 
 import { GATEWAY_URL } from './constants';
-import { requestClient } from './request';
 import * as constants from './constants';
+import { requestClient } from './request';
 
 export class Gateway {
   public constructor(
diff --git a/lib/core/lang-pack-model.ts b/lib/core/lang-pack-model.ts
new file mode 100644
index 0000000..59af803
--- /dev/null
+++ b/lib/core/lang-pack-model.ts
@@ -0,0 +1,47 @@
+import _ from 'lodash';
+
+export interface LangValue {
+  packs: any;
+}
+
+/**
+ * A description of a device model's capabilities.
+ */
+export class LangPackModel {
+  public constructor(
+    public data: any,
+  ) {
+  }
+
+  /**
+   * Look up information about a value.
+   */
+  public value() {
+    return {
+      packs: this.data.pack,
+    } as LangValue;
+  }
+
+  /**
+   * Look up the encoded value for a friendly enum name.
+   */
+  public enumValue(name: string) {
+    const packs = (this.value() as LangValue).packs || {};
+    // invert them pa
+    const packsInv = _.invert(packs);
+
+    return packsInv[name];
+  }
+
+  /**
+   * Look up the friendly enum name for an encoded value.
+   */
+  public enumName(value: string) {
+    const packs = (this.value() as LangValue).packs || {};
+    if (!(value in packs)) {
+      return null;
+    }
+
+    return packs[value];
+  }
+}
diff --git a/lib/core/lang-pack-product.ts b/lib/core/lang-pack-product.ts
new file mode 100644
index 0000000..36b4471
--- /dev/null
+++ b/lib/core/lang-pack-product.ts
@@ -0,0 +1,44 @@
+import _ from 'lodash';
+import { LangValue } from './lang-pack-model';
+
+/**
+ * A description of a device model's capabilities.
+ */
+export class LangPackProduct {
+  public constructor(
+    public data: any,
+  ) {
+  }
+
+  /**
+   * Look up information about a value.
+   */
+  public value() {
+    return {
+      packs: this.data.pack,
+    } as LangValue;
+  }
+
+  /**
+   * Look up the encoded value for a friendly enum name.
+   */
+  public enumValue(name: string) {
+    const packs = (this.value() as LangValue).packs || {};
+    // invert them pa
+    const packsInv = _.invert(packs);
+
+    return packsInv[name];
+  }
+
+  /**
+   * Look up the friendly enum name for an encoded value.
+   */
+  public enumName(value: string) {
+    const packs = (this.value() as LangValue).packs || {};
+    if (!(value in packs)) {
+      return null;
+    }
+
+    return packs[value];
+  }
+}
diff --git a/lib/core/model-info.ts b/lib/core/model-info.ts
index c3f4386..9fcbdd1 100644
--- a/lib/core/model-info.ts
+++ b/lib/core/model-info.ts
@@ -33,29 +33,29 @@ export interface ModelData {
 }
 
 export interface BitValue {
-  type: ValueType.Bit,
+  type: ValueType.Bit;
   options: any;
 }
 
 export interface EnumValue {
-  type: ValueType.Enum,
+  type: ValueType.Enum;
   options: any;
 }
 
 export interface RangeValue {
-  type: ValueType.Range,
+  type: ValueType.Range;
   min: number;
   max: number;
   step: number;
 }
 
 export interface ReferenceValue {
-  type: ValueType.Reference,
+  type: ValueType.Reference;
   reference: any;
 }
 
 export interface StringCommentValue {
-  type: ValueType.StringComment,
+  type: ValueType.StringComment;
   comment: string;
 }
 
@@ -146,6 +146,10 @@ export class ModelInfo {
     return this.data.Monitoring.type === 'BINARY(BYTE)';
   }
 
+  public decodeMonitor(data: any) {
+    return this.binaryMonitorData ? this.decodeMonitorBinary(data) : this.decodeMonitorJson(data);
+  }
+
   private decodeMonitorBinary(data: any) {
     const decoded: { [key: string]: any } = {};
 
@@ -167,8 +171,4 @@ export class ModelInfo {
     return JSON.parse(data.toString('utf-8'));
   }
 
-  public decodeMonitor(data: any) {
-    return this.binaryMonitorData ? this.decodeMonitorBinary(data) : this.decodeMonitorJson(data);
-  }
-
 }
diff --git a/lib/core/monitor.ts b/lib/core/monitor.ts
index 8a9295e..1facdf9 100644
--- a/lib/core/monitor.ts
+++ b/lib/core/monitor.ts
@@ -1,5 +1,5 @@
-import { Session, WorkId } from './session';
 import { MonitorError } from './errors';
+import { Session, WorkId } from './session';
 
 export class Monitor {
   public workId?: WorkId;
diff --git a/lib/core/request.ts b/lib/core/request.ts
index 922cb7d..1e16cff 100644
--- a/lib/core/request.ts
+++ b/lib/core/request.ts
@@ -1,5 +1,5 @@
-import { NotLoggedInError, NotConnectedError, APIError } from './errors';
 import axios, { AxiosInstance } from 'axios';
+import { APIError, NotConnectedError, NotLoggedInError } from './errors';
 
 import * as constants from './constants';
 
@@ -31,7 +31,6 @@ client.interceptors.response.use((resp) => {
 (client as any).lgedmPost = (async (url, data, accessToken, sessionId) => {
   const headers: { [key: string]: string } = {};
 
-
   if (typeof accessToken === 'string') {
     headers['x-thinq-token'] = accessToken;
   }
diff --git a/lib/core/session.ts b/lib/core/session.ts
index b35efd3..5e987f3 100644
--- a/lib/core/session.ts
+++ b/lib/core/session.ts
@@ -1,9 +1,9 @@
-import { Auth } from './auth';
+import * as _ from 'lodash';
 import * as url from 'url';
-import { requestClient } from './request';
 import * as uuid from 'uuid';
-import * as _ from 'lodash';
+import { Auth } from './auth';
 import { MonitorError } from './errors';
+import { requestClient } from './request';
 
 export type WorkId = typeof uuid['v4'];
 
diff --git a/lib/devices/ac.ts b/lib/devices/ac.ts
index c53452a..7ce0982 100644
--- a/lib/devices/ac.ts
+++ b/lib/devices/ac.ts
@@ -14,7 +14,7 @@ export enum ACVSwingMode {
   FOUR = '@4',
   FIVE = '@5',
   SIX = '@6',
-  ALL = '@100'
+  ALL = '@100',
 }
 
 /**
@@ -35,23 +35,23 @@ export enum ACHSwingMode {
   FIVE = '@5',
   LEFT_HALF = '@13',
   RIGHT_HALF = '@35',
-  ALL = '@100'
+  ALL = '@100',
 }
 
 /**
  * The operation mode for an AC/HVAC device.
  */
 export enum ACMode {
-  COOL = "@AC_MAIN_OPERATION_MODE_COOL_W",
-  DRY = "@AC_MAIN_OPERATION_MODE_DRY_W",
-  FAN = "@AC_MAIN_OPERATION_MODE_FAN_W",
-  AI = "@AC_MAIN_OPERATION_MODE_AI_W",
-  HEAT = "@AC_MAIN_OPERATION_MODE_HEAT_W",
-  AIRCLEAN = "@AC_MAIN_OPERATION_MODE_AIRCLEAN_W",
-  ACO = "@AC_MAIN_OPERATION_MODE_ACO_W",
-  AROMA = "@AC_MAIN_OPERATION_MODE_AROMA_W",
-  ENERGY_SAVING = "@AC_MAIN_OPERATION_MODE_ENERGY_SAVING_W",
-  ENERGY_SAVER = "@AC_MAIN_OPERATION_MODE_ENERGY_SAVER_W"
+  COOL = '@AC_MAIN_OPERATION_MODE_COOL_W',
+  DRY = '@AC_MAIN_OPERATION_MODE_DRY_W',
+  FAN = '@AC_MAIN_OPERATION_MODE_FAN_W',
+  AI = '@AC_MAIN_OPERATION_MODE_AI_W',
+  HEAT = '@AC_MAIN_OPERATION_MODE_HEAT_W',
+  AIRCLEAN = '@AC_MAIN_OPERATION_MODE_AIRCLEAN_W',
+  ACO = '@AC_MAIN_OPERATION_MODE_ACO_W',
+  AROMA = '@AC_MAIN_OPERATION_MODE_AROMA_W',
+  ENERGY_SAVING = '@AC_MAIN_OPERATION_MODE_ENERGY_SAVING_W',
+  ENERGY_SAVER = '@AC_MAIN_OPERATION_MODE_ENERGY_SAVER_W',
 }
 
 /**
@@ -66,18 +66,18 @@ export enum ACFanSpeed {
   MID_HIGH = '@AC_MAIN_WIND_STRENGTH_MID_HIGH_W',
   HIGH = '@AC_MAIN_WIND_STRENGTH_HIGH_W',
   POWER = '@AC_MAIN_WIND_STRENGTH_POWER_W',
-  AUTO = '@AC_MAIN_WIND_STRENGTH_AUTO_W'
+  AUTO = '@AC_MAIN_WIND_STRENGTH_AUTO_W',
 }
 
 /**
  * Whether a device is on or off.
  */
 export enum ACOperation {
-  OFF = "@AC_MAIN_OPERATION_OFF_W",
+  OFF = '@AC_MAIN_OPERATION_OFF_W',
   /** This one seems to mean "on" ? */
-  RIGHT_ON = "@AC_MAIN_OPERATION_RIGHT_ON_W",
-  LEFT_ON = "@AC_MAIN_OPERATION_LEFT_ON_W",
-  ALL_ON = "@AC_MAIN_OPERATION_ALL_ON_W"
+  RIGHT_ON = '@AC_MAIN_OPERATION_RIGHT_ON_W',
+  LEFT_ON = '@AC_MAIN_OPERATION_LEFT_ON_W',
+  ALL_ON = '@AC_MAIN_OPERATION_ALL_ON_W',
 }
 
 export class ACDevice extends Device {
@@ -102,7 +102,7 @@ export class ACDevice extends Device {
       if (mapping.type === 'Enum') {
         return Object.entries(mapping.options).reduce((obj, [f, c]) => ({
           ...obj,
-          [Number(c)]: c,
+          [Number(f)]: c,
          }), {});
       }
     }
@@ -205,7 +205,7 @@ export class ACDevice extends Device {
 export class ACStatus {
   public constructor(
     public device: ACDevice,
-    public data: any
+    public data: any,
   ) { }
 
   public get currentTempInCelsius() {
@@ -234,14 +234,14 @@ export class ACStatus {
     return asEnum(ACFanSpeed, key);
   }
 
-  public get HorizontalSwing() {
+  public get horizontalSwing() {
     const key = lookupEnum('WDirHStep', this.data, this.device);
-    return asEnum(ACOperation, key);
+    return asEnum(ACHSwingMode, key);
   }
 
-  public getVerticalSwing() {
+  public get verticalSwing() {
     const key = lookupEnum('WDirVStep', this.data, this.device);
-    return asEnum(ACOperation, key);
+    return asEnum(ACVSwingMode, key);
   }
 
   public get isOn() {
diff --git a/lib/devices/dehumidifier.ts b/lib/devices/dehumidifier.ts
index 7a70056..67cdd38 100644
--- a/lib/devices/dehumidifier.ts
+++ b/lib/devices/dehumidifier.ts
@@ -1,5 +1,5 @@
-import { asEnum, lookupEnum } from '../utils';
 import { Device } from '../core/device';
+import { asEnum, lookupEnum } from '../utils';
 
 export enum DehumidifierOperationMode {
   SLEEP = '@AP_MAIN_MID_OPMODE_SLEEP_W',
@@ -88,7 +88,7 @@ export class DehumidifierDevice extends Device {
 export class DehumidifierStatus {
   public constructor(
     public device: DehumidifierDevice,
-    public data: any
+    public data: any,
   ) {
   }
 
diff --git a/lib/devices/dishwasher.ts b/lib/devices/dishwasher.ts
index f3298d3..e91bb87 100644
--- a/lib/devices/dishwasher.ts
+++ b/lib/devices/dishwasher.ts
@@ -1,5 +1,5 @@
 import { Device } from '../core/device';
-import { lookupEnum, asEnum, lookupReference } from '../utils';
+import { asEnum, asTime, lookupEnum, lookupReference } from '../utils';
 
 /**
  * The state of the dishwasher device.
@@ -7,10 +7,10 @@ import { lookupEnum, asEnum, lookupReference } from '../utils';
 export enum DishwasherState {
   INITIAL = '@DW_STATE_INITIAL_W',
   RUNNING = '@DW_STATE_RUNNING_W',
-  PAUSED = "@DW_STATE_PAUSE_W",
+  PAUSED = '@DW_STATE_PAUSE_W',
   OFF = '@DW_STATE_POWER_OFF_W',
   COMPLETE = '@DW_STATE_COMPLETE_W',
-  POWER_FAIL = "@DW_STATE_POWER_FAIL_W"
+  POWER_FAIL = '@DW_STATE_POWER_FAIL_W',
 }
 
 /**
@@ -23,7 +23,7 @@ export enum DishwasherProcess {
   DRYING = '@DW_STATE_DRYING_W',
   COMPLETE = '@DW_STATE_COMPLETE_W',
   NIGHT_DRYING = '@DW_STATE_NIGHTDRY_W',
-  CANCELLED = '@DW_STATE_CANCEL_W'
+  CANCELLED = '@DW_STATE_CANCEL_W',
 }
 
 export class DishwasherDevice extends Device {
@@ -45,7 +45,7 @@ export class DishwasherDevice extends Device {
 export class DishwasherStatus {
   public constructor(
     public device: DishwasherDevice,
-    public data: any
+    public data: any,
   ) { }
 
   public get state() {
@@ -63,15 +63,15 @@ export class DishwasherStatus {
   }
 
   public get remainingTime() {
-    return Number(this.data['Remain_Time_H']) * 60 + Number(this.data['Remain_Time_M']);
+    return asTime('Remain_Time_H', 'Remain_Time_M', this.data);
   }
 
   public get initialTime() {
-    return Number(this.data['Initial_Time_H']) * 60 + Number(this.data['Initial_Time_M']);
+    return asTime('Initial_Time_H', 'Initial_Time_M', this.data);
   }
 
   public get reserveTime() {
-    return Number(this.data['Reserve_Time_H']) * 60 + Number(this.data['Reserve_Time_M']);
+    return asTime('Reserve_Time_H', 'Reserve_Time_M', this.data);
   }
 
   public get course() {
diff --git a/lib/devices/dryer.ts b/lib/devices/dryer.ts
index 1190361..15933c2 100644
--- a/lib/devices/dryer.ts
+++ b/lib/devices/dryer.ts
@@ -1,5 +1,5 @@
 import { Device } from '../core/device';
-import { lookupEnum, asEnum, lookupReference } from '../utils';
+import { asEnum, asTime, lookupEnum, lookupReference } from '../utils';
 
 /**
  * The state of the dryer device.
@@ -14,7 +14,7 @@ export enum DryerState {
   PAUSE = '@WM_STATE_PAUSE_W',
   RUNNING = '@WM_STATE_RUNNING_W',
   SMART_DIAGNOSIS = '@WM_STATE_SMART_DIAGNOSIS_W',
-  WRINKLE_CARE = '@WM_STATE_WRINKLECARE_W'
+  WRINKLE_CARE = '@WM_STATE_WRINKLECARE_W',
 }
 
 /**
@@ -29,7 +29,7 @@ export enum DryLevel {
   MORE = '@WM_DRY27_DRY_LEVEL_MORE_W',
   NORMAL = '@WM_DRY27_DRY_LEVEL_NORMAL_W',
   OFF = '-',
-  VERY = '@WM_DRY27_DRY_LEVEL_VERY_W'
+  VERY = '@WM_DRY27_DRY_LEVEL_VERY_W',
 }
 
 /**
@@ -51,7 +51,7 @@ export enum DryerError {
   ERROR_TE1 = '@WM_US_DRYER_ERROR_TE1_W',
   ERROR_TE2 = '@WM_US_DRYER_ERROR_TE2_W',
   ERROR_TE5 = '@WM_US_DRYER_ERROR_TE5_W',
-  ERROR_TE6 = '@WM_US_DRYER_ERROR_TE6_W'
+  ERROR_TE6 = '@WM_US_DRYER_ERROR_TE6_W',
 }
 
 /**
@@ -63,7 +63,7 @@ export enum TempControl {
   LOW = '@WM_DRY27_TEMP_LOW_W',
   MEDIUM = '@WM_DRY27_TEMP_MEDIUM_W',
   MID_HIGH = '@WM_DRY27_TEMP_MID_HIGH_W',
-  HIGH = '@WM_DRY27_TEMP_HIGH_W'
+  HIGH = '@WM_DRY27_TEMP_HIGH_W',
 }
 
 /**
@@ -75,7 +75,7 @@ export enum TimeDry {
   THIRTY = '30',
   FOURTY = '40',
   FIFTY = '50',
-  SIXTY = '60'
+  SIXTY = '60',
 }
 
 export class DryerDevice extends Device {
@@ -97,7 +97,7 @@ export class DryerDevice extends Device {
 export class DryerStatus {
   public constructor(
     public device: DryerDevice,
-    public data: any
+    public data: any,
   ) { }
 
   public get state() {
@@ -130,11 +130,11 @@ export class DryerStatus {
   }
 
   public get remainingTime() {
-    return Number(this.data['Remain_Time_H']) * 60 +    Number(this.data['Remain_Time_M']);
+    return asTime('Remain_Time_H', 'Remain_Time_M', this.data);
   }
 
   public get initialTime() {
-    return Number(this.data['Initial_Time_H']) * 60 +    Number(this.data['Initial_Time_M']);
+    return asTime('Initial_Time_H', 'Initial_Time_M', this.data);
   }
 
   public get course() {
diff --git a/lib/devices/refrigerator.ts b/lib/devices/refrigerator.ts
index 18365bd..c6a95c8 100644
--- a/lib/devices/refrigerator.ts
+++ b/lib/devices/refrigerator.ts
@@ -1,59 +1,46 @@
-import { asEnum, lookupEnum } from '../utils';
-import { Device } from '../core/device';
-
-export enum IcePlus {
-  OFF = "@CP_OFF_EN_W",
-  ON = "@CP_ON_EN_W",
-  ICE_PLUS = "@RE_TERM_ICE_PLUS_W",
-  ICE_PLUS_FREEZE = "@RE_MAIN_SPEED_FREEZE_TERM_W",
-  ICE_PLUS_OFF = "@CP_TERM_OFF_KO_W"
-}
+import { Device, OnOffEnum } from '../core/device';
+import { asEnum, lookupEnum, lookupEnumLang } from '../utils';
 
 export enum FreshAirFilter {
-  OFF = "@CP_TERM_OFF_KO_W",
-  AUTO = "@RE_STATE_FRESH_AIR_FILTER_MODE_AUTO_W",
-  POWER = "@RE_STATE_FRESH_AIR_FILTER_MODE_POWER_W",
-  REPLACE_FILTER = "@RE_STATE_REPLACE_FILTER_W",
-  SMARTCARE_RUN = "@RE_SMARTCARE_RUN_W",
-  SMARTCARE_ON = "@RE_STATE_SMART_SMART_CARE_ON",
-  SMARTCARE_OFF = "@RE_STATE_SMART_SMART_CARE_OFF",
-  EMPTY = ""
+  OFF = '@CP_TERM_OFF_KO_W',
+  AUTO = '@RE_STATE_FRESH_AIR_FILTER_MODE_AUTO_W',
+  POWER = '@RE_STATE_FRESH_AIR_FILTER_MODE_POWER_W',
+  REPLACE_FILTER = '@RE_STATE_REPLACE_FILTER_W',
+  SMARTCARE_RUN = '@RE_SMARTCARE_RUN_W',
+  SMARTCARE_ON = '@RE_STATE_SMART_SMART_CARE_ON',
+  SMARTCARE_OFF = '@RE_STATE_SMART_SMART_CARE_OFF',
+  EMPTY = '',
 }
 
 export enum SmartSavingMode {
-  OFF = "@CP_TERM_USE_NOT_W",
-  NIGHT = "@RE_SMARTSAVING_MODE_NIGHT_W",
-  CUSTOM = "@RE_SMARTSAVING_MODE_CUSTOM_W",
-  EMPTY = ""
+  OFF = '@CP_TERM_USE_NOT_W',
+  NIGHT = '@RE_SMARTSAVING_MODE_NIGHT_W',
+  CUSTOM = '@RE_SMARTSAVING_MODE_CUSTOM_W',
+  EMPTY = '',
 }
 
 export enum SmartSavingModeStatus {
-  OFF = "OFF",
-  ON = "ON",
-  EMPTY = ""
-}
-
-export enum EcoFriendly {
-  OFF = "@CP_OFF_EN_W",
-  ON = "@CP_ON_EN_W"
+  OFF = 'OFF',
+  ON = 'ON',
+  EMPTY = '',
 }
 
 export enum LockingStatus {
-  UNLOCK = "UNLOCK",
-  LOCK = "LOCK",
-  EMPTY = ""
+  UNLOCK = 'UNLOCK',
+  LOCK = 'LOCK',
+  EMPTY = '',
 }
 
 export enum DoorOpenState {
-  OPEN = "OPEN",
-  CLOSE = "CLOSE",
-  EMPTY = ""
+  OPEN = 'OPEN',
+  CLOSE = 'CLOSE',
+  EMPTY = '',
 }
 
 export enum TempUnit {
-  F = "Ｆ",
-  C = "℃",
-  EMPTY = ""
+  F = 'Ｆ',
+  C = '℃',
+  EMPTY = '',
 }
 
 export class RefrigeratorDevice extends Device {
@@ -78,20 +65,30 @@ export class RefrigeratorDevice extends Device {
     //   "REIP":"{{IcePlus}}",
     //   "REEF":"{{EcoFriendly}}"
     // }
-    const opValue = this.model.enumValue('TempRefrigerator', temp.toString())
+    const opValue = this.model.enumValue('TempRefrigerator', temp.toString());
     await this.setControl('RETM', opValue);
   }
 
   public async setTempFreezerC(temp: number) {
-    const opValue = this.model.enumValue('TempFreezer', temp.toString())
+    const opValue = this.model.enumValue('TempFreezer', temp.toString());
     await this.setControl('REFT', opValue);
   }
+
+  public async setEcoEnabled(val: boolean) {
+    const opValue = this.model.enumValue('EcoFriendly', val ? OnOffEnum.ON : OnOffEnum.OFF);
+    await this.setControl('REEF', opValue);
+  }
+
+  public async setIcePlusStatus(val: boolean) {
+    const opValue = this.model.enumValue('IcePlus', val ? OnOffEnum.ON : OnOffEnum.OFF);
+    await this.setControl('REIP', opValue);
+  }
 }
 
 export class RefrigeratorStatus {
   public constructor(
     public device: RefrigeratorDevice,
-    public data: any
+    public data: any,
   ) {
   }
 
@@ -107,7 +104,7 @@ export class RefrigeratorStatus {
 
   public get icePlusStatus() {
     const key = lookupEnum('IcePlus', this.data, this.device);
-    return asEnum(IcePlus, key);
+    return asEnum(OnOffEnum, key) === OnOffEnum.ON;
   }
 
   public get freshAirFilterStatus() {
@@ -115,6 +112,10 @@ export class RefrigeratorStatus {
     return asEnum(FreshAirFilter, key);
   }
 
+  public get freshAirFilterStatusText() {
+    return lookupEnumLang('FreshAirFilter', this.data, this.device);
+  }
+
   public get energySavingMode() {
     const key = lookupEnum('SmartSavingMode', this.data, this.device);
     return asEnum(SmartSavingMode, key);
@@ -122,7 +123,7 @@ export class RefrigeratorStatus {
 
   public get doorOpened() {
     const key = lookupEnum('DoorOpenState', this.data, this.device);
-    return asEnum(DoorOpenState, key) == DoorOpenState.OPEN;
+    return asEnum(DoorOpenState, key) === DoorOpenState.OPEN;
   }
 
   public get tempUnit() {
@@ -132,24 +133,24 @@ export class RefrigeratorStatus {
 
   public get energySavingEnabled() {
     const key = lookupEnum('SmartSavingModeStatus', this.data, this.device);
-    return asEnum(SmartSavingModeStatus, key) == SmartSavingModeStatus.ON;
+    return asEnum(SmartSavingModeStatus, key) === SmartSavingModeStatus.ON;
   }
 
   public get locked() {
     const key = lookupEnum('LockingStatus', this.data, this.device);
-    return asEnum(LockingStatus, key) == LockingStatus.LOCK;
+    return asEnum(LockingStatus, key) === LockingStatus.LOCK;
   }
 
   public get activeSavingStatus() {
-    return this.data['ActiveSavingStatus']
+    return this.data['ActiveSavingStatus'];
   }
 
   public get ecoEnabled() {
     const value = lookupEnum('EcoFriendly', this.data, this.device);
-    return asEnum(EcoFriendly, value) == EcoFriendly.ON;
+    return asEnum(OnOffEnum, value) === OnOffEnum.ON;
   }
 
   public get waterFilterUsedMonth() {
-    return this.data['WaterFilterUsedMonth']
+    return this.data['WaterFilterUsedMonth'];
   }
 }
diff --git a/lib/devices/washer.ts b/lib/devices/washer.ts
index 2f46f0f..402c6e3 100644
--- a/lib/devices/washer.ts
+++ b/lib/devices/washer.ts
@@ -1,5 +1,5 @@
-import { Device } from '../core/device';
-import { asEnum, lookupEnum, lookupReference } from '../utils';
+import { Device, OnOffEnum } from '../core/device';
+import { asEnum, asTime, lookupEnum, lookupEnumLang, lookupReference } from '../utils';
 
 /**
  * The state of the washer device.
@@ -28,7 +28,7 @@ export enum WasherState {
   SMART_DIAGNOSIS_DATA = '@WM_STATE_SMART_DIAGDATA_W',
   SPINNING = '@WM_STATE_SPINNING_W',
   TCL_ALARM_NORMAL = 'TCL_ALARM_NORMAL',
-  TUBCLEAN_COUNT_ALARM = '@WM_STATE_TUBCLEAN_COUNT_ALRAM_W'
+  TUBCLEAN_COUNT_ALARM = '@WM_STATE_TUBCLEAN_COUNT_ALRAM_W',
 }
 
 export class WasherDevice extends Device {
@@ -45,12 +45,17 @@ export class WasherDevice extends Device {
 
     return null;
   }
+
+  public async setOn(isOn: boolean) {
+    const value = isOn ? 'On' : 'Off';
+    await this.setControl('Power', value);
+  }
 }
 
 export class WasherStatus {
   public constructor(
     public device: WasherDevice,
-    public data: any
+    public data: any,
   ) { }
 
   public get state() {
@@ -58,25 +63,47 @@ export class WasherStatus {
     return asEnum(WasherState, key);
   }
 
+  public get stateText() {
+    return lookupEnumLang('State', this.data, this.device);
+  }
+
   public get previousState() {
     const key = lookupEnum('PreState', this.data, this.device);
     return asEnum(WasherState, key);
   }
 
+  public get previousStateText() {
+    return lookupEnumLang('PreState', this.data, this.device);
+  }
+
   public get isOn() {
     return this.state !== WasherState.OFF;
   }
 
+  public get isRemoteStart() {
+    const key = lookupEnum('RemoteStart', this.data, this.device);
+    return asEnum(OnOffEnum, key) === OnOffEnum.ON;
+  }
+
+  public get isChildLock() {
+    const key = lookupEnum('ChildLock', this.data, this.device);
+    return asEnum(OnOffEnum, key) === OnOffEnum.ON;
+  }
+
   public get remainingTime() {
-    return Number(this.data['Remain_Time_H']) * 60 + Number(this.data['Remain_Time_M']);
+    return asTime('Remain_Time_H', 'Remain_Time_M', this.data);
   }
 
   public get initialTime() {
-    return Number(this.data['Initial_Time_H']) * 60 + Number(this.data['Initial_Time_M']);
+    return asTime('Initial_Time_H', 'Initial_Time_M', this.data);
+  }
+
+  public get reserveTime() {
+    return asTime('Reserve_Time_H', 'Reserve_Time_M', this.data);
   }
 
   public get course() {
-    const value = lookupReference('APCourse', this.data, this.device);
+    const value = lookupReference('Course', this.data, this.device);
     return value;
   }
 
diff --git a/lib/index.ts b/lib/index.ts
index fc19daa..8195579 100644
--- a/lib/index.ts
+++ b/lib/index.ts
@@ -7,6 +7,12 @@ export * from './core/gateway';
 export * from './core/model-info';
 export * from './core/monitor';
 export * from './core/session';
+export * from './devices/ac';
+export * from './devices/dehumidifier';
+export * from './devices/dishwasher';
+export * from './devices/dryer';
+export * from './devices/refrigerator';
+export * from './devices/washer';
 export * from './client';
 
 export {
diff --git a/lib/utils.ts b/lib/utils.ts
index 83c49b5..0284022 100644
--- a/lib/utils.ts
+++ b/lib/utils.ts
@@ -4,34 +4,54 @@ type Not<T> = [T] extends [never] ? unknown : never;
 type Extractable<T, U> = Not<U extends any ? Not<T extends U ? unknown : never> : never>;
 
 export function asEnum<E extends Record<keyof E, string | number>, K extends string | number>(
-  e: E, k: K & Extractable<E[keyof E], K>
+  e: E, k: K & Extractable<E[keyof E], K>,
 ): Extract<E[keyof E], K> {
   // runtime guard, shouldn't need it at compiler time
   if (k && Object.values(e).indexOf(k) < 0) {
-    throw new Error("Expected one of " + Object.values(e).join(", ") + '; got ' + k);
+    throw new Error('Expected one of ' + Object.values(e).join(', ') + '; got ' + k);
   }
 
   return k as any; // assertion
-};
+}
+
+export function asTime(hoursKey: string, minutesKey: string, data: any) {
+  return Number(data[hoursKey]) * 60 + Number(data[minutesKey]);
+}
 
+/**
+ * Looks up an enum value for the provided attr.
+ * @param attr The attribute to lookup in the enum.
+ * @param data The JSON data from the API.
+ * @param device A sub-class instance of a Device.
+ * @returns The enum value.
+ */
 export function lookupEnum(attr: string, data: any, device: Device) {
-  /**
-   * Looks up an enum value for the provided attr.
-   * @param attr: The attribute to lookup in the enum.
-   * @param data: The JSON data from the API.
-   * @param device: A sub-class instance of a Device.
-   * @returns: The enum value.
-   */
   return device.model.enumName(attr, data[attr]);
 }
 
-export function lookupReference(attr: string, data: any, device: Device) {
 /**
  * Look up a reference value for the provided attribute.
- * @param attr: The attribute to find the value for.
- * @param data: The JSON data from the API.
- * @param device: A sub-class instance of a Device.
- * @returns: The looked up value.
+ * @param attr The attribute to find the value for.
+ * @param data The JSON data from the API.
+ * @param device A sub-class instance of a Device.
+ * @returns The looked up value.
  */
+export function lookupReference(attr: string, data: any, device: Device) {
+  if (!(attr in data)) {
+    return null;
+  }
   return device.model.referenceName(attr, data[attr]);
 }
+
+/**
+ * Looks up an enum value for the provided attr.
+ * @param attr The attribute to lookup in the enum.
+ * @param data The JSON data from the API.
+ * @param device A sub-class instance of a Device.
+ * @returns The enum value.
+ */
+export function lookupEnumLang(attr: string, data: any, device: Device) {
+  const value = device.model.enumName(attr, data[attr]);
+  const lang = value && (device.langPackProduct.enumName(value) || device.langPackModel.enumName(value));
+  return String(lang);
+}
diff --git a/package-lock.json b/package-lock.json
index 3c7aab7..281bcc2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -600,6 +600,15 @@
       "integrity": "sha512-SlmP3fEA88MBv0PypnXZ8ZfJhwmDeIE3SP71j37AiXQBXYosPV0x6uISAaHYSlSVhmHOVkomen0tbGk6Anlebw==",
       "dev": true
     },
+    "argparse": {
+      "version": "1.0.10",
+      "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
+      "integrity": "sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==",
+      "dev": true,
+      "requires": {
+        "sprintf-js": "~1.0.2"
+      }
+    },
     "arr-diff": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/arr-diff/-/arr-diff-4.0.0.tgz",
@@ -907,6 +916,12 @@
       "integrity": "sha512-MQcXEUbCKtEo7bhqEs6560Hyd4XaovZlO/k9V3hjVUF/zwW7KBVdSK4gIt/bzwS9MbR5qob+F5jusZsb0YQK2A==",
       "dev": true
     },
+    "builtin-modules": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/builtin-modules/-/builtin-modules-1.1.1.tgz",
+      "integrity": "sha1-Jw8HbFpywC9bZaR9+Uxf46J4iS8=",
+      "dev": true
+    },
     "cache-base": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/cache-base/-/cache-base-1.0.1.tgz",
@@ -3222,6 +3237,24 @@
       "integrity": "sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ==",
       "dev": true
     },
+    "js-yaml": {
+      "version": "3.13.1",
+      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.13.1.tgz",
+      "integrity": "sha512-YfbcO7jXDdyj0DGxYVSlSeQNHbD7XPWvrVWeVUujrQEoZzWJIRrCPoyk6kL6IAjAG2IolMK4T0hNUe0HOUs5Jw==",
+      "dev": true,
+      "requires": {
+        "argparse": "^1.0.7",
+        "esprima": "^4.0.0"
+      },
+      "dependencies": {
+        "esprima": {
+          "version": "4.0.1",
+          "resolved": "https://registry.npmjs.org/esprima/-/esprima-4.0.1.tgz",
+          "integrity": "sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A==",
+          "dev": true
+        }
+      }
+    },
     "jsbn": {
       "version": "0.1.1",
       "resolved": "https://registry.npmjs.org/jsbn/-/jsbn-0.1.1.tgz",
@@ -4637,6 +4670,12 @@
         "extend-shallow": "^3.0.0"
       }
     },
+    "sprintf-js": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
+      "integrity": "sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=",
+      "dev": true
+    },
     "sshpk": {
       "version": "1.16.1",
       "resolved": "https://registry.npmjs.org/sshpk/-/sshpk-1.16.1.tgz",
@@ -4936,6 +4975,50 @@
         "yn": "^3.0.0"
       }
     },
+    "tslib": {
+      "version": "1.10.0",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.10.0.tgz",
+      "integrity": "sha512-qOebF53frne81cf0S9B41ByenJ3/IuH8yJKngAX35CmiZySA0khhkovshKK+jGCaMnVomla7gVlIcc3EvKPbTQ==",
+      "dev": true
+    },
+    "tslint": {
+      "version": "5.20.1",
+      "resolved": "https://registry.npmjs.org/tslint/-/tslint-5.20.1.tgz",
+      "integrity": "sha512-EcMxhzCFt8k+/UP5r8waCf/lzmeSyVlqxqMEDQE7rWYiQky8KpIBz1JAoYXfROHrPZ1XXd43q8yQnULOLiBRQg==",
+      "dev": true,
+      "requires": {
+        "@babel/code-frame": "^7.0.0",
+        "builtin-modules": "^1.1.1",
+        "chalk": "^2.3.0",
+        "commander": "^2.12.1",
+        "diff": "^4.0.1",
+        "glob": "^7.1.1",
+        "js-yaml": "^3.13.1",
+        "minimatch": "^3.0.4",
+        "mkdirp": "^0.5.1",
+        "resolve": "^1.3.2",
+        "semver": "^5.3.0",
+        "tslib": "^1.8.0",
+        "tsutils": "^2.29.0"
+      },
+      "dependencies": {
+        "commander": {
+          "version": "2.20.3",
+          "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.3.tgz",
+          "integrity": "sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ==",
+          "dev": true
+        }
+      }
+    },
+    "tsutils": {
+      "version": "2.29.0",
+      "resolved": "https://registry.npmjs.org/tsutils/-/tsutils-2.29.0.tgz",
+      "integrity": "sha512-g5JVHCIJwzfISaXpXE1qvNalca5Jwob6FjI4AoPlqMusJ6ftFE7IkkFoMhVLRgK+4Kx3gkzb8UZK5t5yTTvEmA==",
+      "dev": true,
+      "requires": {
+        "tslib": "^1.8.1"
+      }
+    },
     "tunnel-agent": {
       "version": "0.6.0",
       "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
diff --git a/package.json b/package.json
index 94d8918..2aaa3d0 100644
--- a/package.json
+++ b/package.json
@@ -48,6 +48,7 @@
     "shx": "^0.3.2",
     "ts-jest": "^24.0.2",
     "ts-node": "^8.3.0",
+    "tslint": "^5.20.1",
     "typedoc": "^0.15.0",
     "typescript": "^3.5.3"
   }
diff --git a/tslint.json b/tslint.json
new file mode 100644
index 0000000..4cdab7c
--- /dev/null
+++ b/tslint.json
@@ -0,0 +1,13 @@
+{
+    "defaultSeverity": "error",
+    "extends": [
+        "tslint:recommended"
+    ],
+    "jsRules": {},
+    "rules": {
+      "interface-name": false,
+      "max-classes-per-file": [true, 5],
+      "quotemark": [true, "single"]
+    },
+    "rulesDirectory": []
+}