GSM-CTL wireless GSM remote control box

The GSM-CTL is a wireless gsm remote control switch that connects to the GSM cell phone network.

Working at QUAD Band: 900/1800/850/1900MHZ

It has two 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 one independent relay switches which can be switched on or off by sending the GSM-RELAY an sms text message.

Specifications:

Real-time & interactive control2 channels 250V 30A 50 Hz relay contactsWorks with GSM phones Operating temperature (-25 .. +60 °C) Relays operates almost every appliance Small standby power (< 10mA 12V) Relay memory after power failureOptional password to keep the system at safety operating mode.Remote Password change Two operating mode optional ( remote setting with GSM phones)One relay is woking with the phone calling, and others working with the SMSCommands can added to GSM-phone number for raeady made commandsWorking voltage is at 9~12V AC /DC.

Accessory parts : Program adapter:

Applications:

Applications include the remote control of heating in holiday homes, lighting, engine pre-heaters, aviation engine heaters, irrigation systems, water well pumps, pumping stations, cabin heaters, resetting of remote servers, arming and disarming security systems, access control of gates and garage doors.