The 4 relays board.  After connecting to GSM v2 controller  or LAN controller each relay can be independently turned on/off. Main application is managing by up to four electric devices.


Technical specification:

- relay number on board - 4

- relay outputs: common, normally open, normally closed

 Price include ribbon with plugs for realize connection to GSMv2


REQUIRES GSM Controller -> see link -> GSM-V2 or LAN Controller