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GSM BASED RELAY ON/OFF SWITCH 1 CHANNEL TO 4 CHANNEL Remote control using a MOBILE phone from anywhere in the world! - New Feature - Schedule Timer Added The GSM BASED RELAY ON/OFF SWITCH 1 CHANNEL TO 4 CHANNEL is a GSM remote control switch, it connects to the cell phone network and like a cell phone has its own cell phone number. The GSM switch is activated by Sending SMS to its cell phone number, it has 1 TO 4 independent relay switches with normally open and normally closed switch contacts, these can be programmed to switch on and Off By Sending SMS A1 B1 C1 -A0 B0 C0 ..... . SMS text message command. It can report the relay status by sending back a text message. Applications Applications are endless and include the remote control of heating and air conditioning in holiday homes, lighting, engine pre-heaters, aviation engine heaters, irrigation systems, water well pumps, pumping stations, cabin heaters, power cycle and reboot of remote servers, routers and computers. • Dual band based GSM Modem. • Independent relays that can be programmed to switch on and OFF Using SMS. • secure access where it will only respond to programmed authorized telephone numbers.( upto 5 nos ). • The relays can be temporarily switched on and Off by sending the GSM BASED RELAY ON/OFF SWITCH 1 CHANNEL TO 4 CHANNEL a text message command, a confirmation text will be returned when the relays turn on and off if required. • 1 TO 4 relay's with normally open (N.O) and normally closed (N.C) contacts, maximum switching capacity is 7 amps @ 230V ac per relay. Specification • Operating Voltage - 12VAC/ DC 2 Amps • SIM card any Network SPECIFICATION : POWER INPUT: 12v DC-2 Amps RELAY: 250v 7A, 24 10A LIGHT INDICATION: FIRST LED: RED- POWER LIGHT SECOND LED: GREEN – BLINK 2 SECONDS ONCE GSM CONNECTED TO NETWORK RELAY ON CORRESPONDING LED WILL GLOW