(New version 2016 GSM relay controller, more features including: Log data, fast program and reset button on board, Support customized SMS controller for ON/OFF switch and pulse control each seperate relay channels)
Same quality, better functions and more features!
Maximum authorized phone numbers: 200
One pcs GSM-AIR GSM controller box One pcs GSM Magnet mount antenna (3 meter wire length) One pcs USB program adapter
The GSM-AIR is a wireless gsm remote controller switch that connects to the GSM cell phone network. It has sixteen independent relay switches, and the NO.1 Relay switch is activated by calling its cell phone number, it will reject the call without answering and switch on the device connected to it,then there are no call costs incurred when dialling the unit, it will recognise an authorised telephone number calling it and reject the call without answering. It has other 15 independent relay switches which can be switched on or off by sending the GSM-AIR an sms text message