This product is a universal switch for your ZIGBEE smart home system, which can automatically turn on/off any electrical appliance remotely through the mobile phone APP When the ambient temperature is within this range, it automatically turn on or off the connected device. It also supports timed on/off and supports preset temperature ranges. Used with TH16 smart switches and sensors, it can make your home smarter Application support: Free iOS and Android mobile applications Tuya Smart/Smart Life Synchronize status, real-time monitoring: Provide real-time device status to the application, monitor real-time temperature/humidity Remote on/off: Use high-precision sensors to turn on/off electrical devices from anywhere. Shared control, control your smart home with your family. Voice control: Compatible with " , Home, Yandex Input voltage: AC 85V-250V 50/60Hz Maximum current: 16A Maximum load: 3000W Wireless standard: ZIGBEE 3.0 Security mechanism: WPA-/WPA2- Control APP: Tuya Smart/Smart Life Platform: Applicable to Android and iOS Casing material: Flame retardant ABS V0 Humidity: 5%-90%RH, non-condensing Working temperature: -20??-70?? Working humidity: less than equal 80% Sensor length: 1m Colour:Black+White Material: Flame retardant ABS Package Contents: 2x Smart Switch 2x Temperature And Humidity Sensor 2x English manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.