2 MODES: The relay module has 2 working modes, one is that the mobile phone is directly mounted on the ESP8266 chip, and the other is that the mobile phone and the ESP8266 chip are mounted on the router at the same time, can meet your using requirement TRANSMISSION DISTANCE: You can control the switch anytime and anywhere in an open environment. When the mobile phone is mounted on the chip, the maximum stable transmission distance is 100m, and the indicator light can be selected in the onboard mode, compact design for easy installation and use ESP8266 CHIP: The PCB relay module uses the ESP8266 chip, which can realize the control of 4 relays in the local area network using the mobile phone APP with a simple configuration process, convenient and practical FEATURES: The relay module can continuously pull in 100,000 times, has diode effusion , and has a short response time, adopts PCB material, has long lasting POWER OFF MEMORY FUNCTION: 4 channel relay module is used for Smartconfig technology to complete the configuration of the account and password of the ESP8266 chip on the mobile APP. The configured account and password have a power off memory function
