Note 1: There are two options EWELINK APP and TUAY/Smart Life APP, please choose the APP you need. NOTE 2:DS18B20 sensor can only detect temperature,the WiFi Switch must work under 2.4GHz WiFi environment. The two products have the same functions, only the APP used is different Overview: This item is a universal switch for your smart home system to remotely and automatically turn on/off any appliances by phone APP. When the temperature of the environment falls within the range, it will automatically turn on or off the connected devices. It also supports timing turning on/off the appliances and supports presetting the range for temperature. Work with the Smart Switch and the waterproof sensor, you can make your home smarter. Features: *App Support: Free iOS and for Android mobile App Tuya/Smart life/Ewelink. *Sync Status: Real-time device status provided to App. *Real-time monitor: Monitor real-time temperature. *Remote ON/OFF: Turn electrical devices on/off from anywhere, with high accuracy temperature waterproof DS18B20 sensor. *Share Control: Control your smart home together with your family. *Timing: Supports 8 enabled countdown/single/repeat timing tasks to turn on/off at specified time. *Auto Mode: Set Auto mode to turn on/off at a specified temp. range. *Manual Mode: Set manual mode to turn on/off immediately. *Trigger Smart Scene: The temp. value works as smart scene trigger conditions to trigger on/off other eWeLink devices.*Voice Control: Compatible with Amazon"Alexa, for Google Home, for Google Nest. *Waterproof temperature sensor with stainless steel temperature probe, high accuracy, wide usage in daily life. Smart Switch Specifications: Input voltage: AC 85-250VInput current: Max 16AMax. Power: 3500W(16A) Wireless Standard: 2.4GHz, 802.11 b/g/nSecurity Mechanism: WPA-PSK/WPA2-PSK Control mode: Mobile APP Tuya / Smart Life/Ewelink. Platform: for Android, iOS Gang: 1 Support temperature sensor(not support humidity sensor now) Enclosure Material: Fire-retardant ABS V0 Humidity: 5%-90%RH, Non-condensing Operating Temperature: 0C-40C Smart Switch Size: 96*53*31 (mm) Tuya APP and Ewelink app smart switch, have the same function. Just use different apps. Sensor Specifications: Type: Waterproof temperature sensor Probe: Stainless steel temperature probe Temperature Measuring Range: -55~+125 Operating Voltage: 3.0-5.5V Weight: 26g Length: 1m Packing List: Type 1: 1 * Tuya Smart Switch 1 * Sensor 1 * English Manual Type 2: 1 * Tuya Smart Switch 1 * Sensor 1*Remote control (CR2032 battery not includ) 1 * English Manual Type 3: 1 * Ewelink Smart Switch 1 * Sensor 1 * English Manual Type 4: 1 * Ewelink Smart Switch 1 * Sensor 1*Remote control (CR2032 battery not includ) 1 * English Manual Type 5 1*Remote control (CR2032 battery not includ) Tuya Switch Sensor Ewelink Switch Sensor App Remote Control Turn electrical devices on/off from anywhere,can work without TH sensor, App Remote Monitoring & Control Real-time monitoring of temperature changes, Remote control heating and cooling. Temperature Control Switch Turn electrical devices on/off from anywhere,can work without TH sensor, Waterproof Temperature Sensor Type: Waterproof temperature sensor Probe: Stainless steel temperature probe Temperature Measuring Range:-55C~+125 Operating Voltage: 3.0-5.5V Applicable to Multiple Scenarios Voice Control Free hands via easy voice control with Alexa and Google Home. Timer & Schedule Family Sharing Share the control with family member enjoy the convenience and happiness together APP Tuya intelligent control: APP Ewelink intelligent control: 433MHz Remote Control: Operating voltage: 3V (CR2032 Without battery) Transmitting frequency: 433MHz Encoding Type: Learning code Transmission distance : 10-100M (Open field)