GIRIER Smart WiFi Switch Module 5A Dry Contact Smart Home DIY Breaker Relay, DC 12/24V AC 100-240V Works with Alexa Hey Google Alice Safe,Convenient,Better Home What's Dry Contact Module? The dry contact module is a versatile electrical switch that responds to external signals, controlling other electrical equipment. With no need to worry about directions or polarity during installation, simply ensure the correct signal current and voltage levels are maintained. Why Choose Dry Contact Module? Compatible with mechanical reset switch and rocker switch,suitable for various mounting boxes. Works both low-voltage and high-voltage according to your different needs.Neutral wire is required. APP Remote Control Turn on/off the devices effortlely from anywhere after connected the module to TuyaSmart/Smart Life APP. Convenient Voice Control Just need simple voice commands to trigger the dry contact through Alexa/Google Home Aistant/Alice,turn on/off the device effortlely and more conveniently.Enjoy your smart life. Timer Schedule With flexible timer setting, you can trigger connected devices on time while saving energy. Relay Status Function With Relay Status Function, you won't have to worry about power outages as you can set on/off/remember the last status of the smart dry contact as relay status. Profeional Certificates Trust in our profeional certifications and high-quality products to provide peace of mind and ensure safety. Sharing Function Share the device to your family and friends,enjoying smart life together SPECIFICATION Product Type: WiFi Switch ModuleRelay: NO,NCWorking Voltage: AC100-240V 50/60Hz;DC12V/24VMax. Load: LED 150W, 5AOperation Temp.: -10~ +40Working Humidity: 90%WIFI Protocol : IEEE 802.11b/g/nOperation Frequency: 2.412GHz-2.484GHzOperation Range: <100mDims (WxDxH): 39.2x39.2x18 mmIP Rating: IP20