The GSM-AUTO is a wireless remote control on/off switch that connects to the GSM cell phone network.
It has 2 independent relay switches, these can be programmed to switch on or off for a pre-determined length of time whenever the GSM-AUTO is called. The GSM-AUTO will recognise an authorised telephone number calling it and action the call without answering. Therefore, there are no call charges in- curred when calling it.
The relay switches can also be temporarily or permanently switched on or off by sending the GSM-AUTO a text message command.
The GSM-AUTO requires a 12 volt DC power supply capable of providing a minimum current of 500mA, typical current consumption is 50mA
An active mobile phone SIM card with sufficient credit to send confirmation text messages when programming the GSM-AUTO