(GSM Version and CDMA Version)
The GSM-AUTO 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-AUTO is activated by calling its cell phone number, it will recognise an authorised telephone number calling it, reject the call without answering and switch on or off the device connected to it, because it rejects the call without answering there are no call costs incurred.
It has 2 independent relay switches with normally open and normally closed switch contacts, these can be programmed to switch on for a pre-determined length of time whenever the GSM-AUTO is called.
The relay switches can also be temporarily or permanently switched on or off by sending the GSM-AUTO a sms text message command. It can report the relay status by sending back a text message.
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.
New functions on our new GSM-AUTO box
You will also need a 12 volt DC power supply with a current rating of 500mA (0.5 Amp), a suitable US power supply can be found above.