This is a WIFI Relay Module based on the ESP8266 serial module. And it controls the relay working status through the app. The perfect kit for controlling all your household appliances with your phone wherever you are.
Function and characteristics
Onboard ESP8266 WiFi module, in AP mode, can be connected by 5 clients at the same time.
WiFi relay module has two work modes: (1) cell phones carry on the WiFi module directly; (2) cell phone and WiFi module carry on the same router.
Open environment, the mobile phone mounted on the WIFI module when the maximum transmission distance of 400m.
- When the WiFI module and mobile phone at the same time carried on the router when the transmission distance according to the router’s signal intensity.