Homekit & MQTT 1CH 10A Relay Module Specification:Chipset: ESP8285 2MPower: <=0.5WVoltage range: AC 100-250V, (50/60Hz)Max current: 10AMax Wattage: 2200 wattsControl mode: Mobile APPTransmiion mode: Wi-Fi communicationControlled lines: 1Dimensions: (L)88*(W)38*(H)22mmColor: WhiteHumidity: 5%-95%Wirele Frequency: 2.4GhzWorking Temp: 20-75 How to install product to your Apple Home App Power on the device and use your compurter or phone search the WiFi until find Homekit_xxxxx and click to connect, wait several seconds until configuation page pop up.After you connect it, the configuration web will pop up automatically ( If not, please use your web browser visit IP addre: 192.168.4.1 , then choose the WiFi router you want to connect (make sure connect to 2.4G not 5.8G) Choose your router and input the paword, then save Open Apple Home APP and click + to add acceory, scan the code or choose" I Don't Have a Code or Cannot Scan" to install manually While Home app find the device click it then pre Add Anyway The device has been succefully installed Touble Shooting If add unsuccefully, pre and hold the key more than 8 seconds to reset it.Then try again until succe This Device Can be Also Controlled by MQTT Please Follow Instructions Below If you want change default settings of other parameters, Please go set and save others parameters first then set and save WiFi setting.If you set and save WiFi before setting other parameters, then the device will connect you router directly and the connection will lost. then you need to open your router find the IP addre of the devices then use IP addre to visit the device