AC220V ESP8266 Wireless WIFI Relay Module 1 Channel ESP-12S Wifi Development Board

Function features : Integrated design. APP remote control. On board high-quality MCU and ESP8266 WIFI module. Two working modes: Mode 1: cell phone carry on Wi-Fi module directly Mode 2: cellphone and Wi-Fi module carry on router together Working Voltage: AC 220V Power Supply Work Temperature: -20℃~85℃ Work Humidity: 0%~95%RH Automatic motor control