Easy to operate, a mobile phone, no matter where you are, through the app downloaded on your phone, smart temperature switch can remotely control the temperature of the device at any time Widely Usage,Home living and agriculture field ,For example, it can control livestock houses,hatching,greenhouses,breeding,farms,storage,lamps,air conditioners and so on,Dry Contact wifi temperature controller,input 85-250V or 7-32V,input voltage just power the board,no current through the board,without voltage at output. Easy to program,Auto and manual Mode,set auto mode to turn on/off your device at specified temperature range automatically in tuya app,Remote ON/OFF,Timing function,Set scheduled/countdown/loop timers to turn on/off at specified time Voice Control:Works with Echo Dot and Google home,use siri voice control by creating smart scene in ewelink app, manage your devices through Voice commands Easy to Share Control,Wifi and App coorporation ,Remotely Control your smart home, Easy to share with your family,share with other 19 person at most. Extra ewelink app can record temperature history and real time share. Color: As shown Material: ABS Package Contents: 1*Smart Temperature Switch 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.