NOTE:DS18B20 sensor can only detect temperature ,the WiFi Switch must work under 2.4GHz WiFi environment. 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. You can also monitor the daily power consumption in real time through this switch..Work with theSmart Switch and the waterproof DS18B20 sensor, you can make your home smarter.Features:*App Support: Free iOS and for Android mobile App Tuya Smart / Smart Life.*Sync Status: Real-time device status provided to App.*Real-time monitor: Monitor real-time temperature.Real-time power monitoring.*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 tuya smart devices.*Voice Control: Compatible with " " Alexa, for Google Home, for Google Nest.*Waterproof temperature sensor with stainle steel temperature probe, high accuracy, wide usage in daily life.Specifications:Input voltage: AC 85-250VInput current: Max 16AMax. Power: 3000W(16A)Wirele Standard: 2.4GHz, 802.11 b/g/nSecurity Mechanism: WPA-PSK/WPA2-PSKControl mode: Mobile APP Tuya smart / Smart LifePlatform: for Android, iOSGang: 1Support temperature sensor: DS18B20.Enclosure Material: Fire-retardant ABS V0Operating Temperature: 0C-40CSmart Switch Size: 94*57*32 (mm)DS18B20 Sensor Specifications:Type: Waterproof temperature sensorProbe: Stainle steel temperature probeTemperature Measuring Range: -20~+100Operating Voltage: 3.0-5.5VWeight: 26gLength: 1mPackage Information:Package Size: Approx. 15*12*4cm / 5.9*4.7*1.6inPackage Weight: Approx. 100g / 3.5ozPacking List:1 * Smart Switch1 * DS18B20 Sensor