WiFi Wireless Inching Relay Monentary/Self-locking Switch Module DIY Smart Home Remote Control DC 5-32V AC90-260V Ewelink App iOS/Andriod Compatible With Google home IFTTTThis product is a wireless switch supports momentary(inching) /self-locking/interlock work modes. Users can add the device to the APP eWeLink in order to remotely control connected home appliances or power circuits.Note:The relays are switches without output, the power supply input (AC/DC) just for the PCBA.Tap the work mode setting button manually, the product can change the working mode.When in inching mode, you can have two wiring ways to select: -Turn on 1s and then auto-off -Turn off 1s and then auto-on.When in self-locking mode, you can remotely turn on/off connected devices immediately.When in interlock mode(only 2-gang and 4-gang supports), you can remote control AC/DC motors.The product enables remote control of home appliances through the mobile application eWeLink, available on both Android and iOS. Supported functions include:Remote turn on/off *Timing SchedulesDevice SharingGroup ManagementCompatible with Amazon , Dot, Amazon TapWorks with Google Home, Google NestWorks with IFTTTtype:BColour:As shownMaterial:PC+MetalPackage Contents:1 x RF433 Relay ModuleOnly the above package content, other products are not included.Note: Light 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.