MIS-0018 Single Relay Module

its a LOW VOLTAGE TRIGGER relay module , it won't work with your Arduino , ESP8266 , NodeMCU or any hobby project unless you know electronics and to add some voltage filtration from parent board (e.g. arduino or nodemcu) . DON'T BUY FOR NODEMCU OR ARDUINO

This product oder time its photo show high trigger....but delivery show low level trigger...

Good quality and compact. But no holes for mounting screws

It is good and working fine.

Works only with low level trigger. Difficult to get it to work with ESP8266-01

The products from ePro labs are really great.