Excellent to remotely control via GSM the activation of engines, lightening or watering systems and alarm systems. It sends commands through SMS as well as with DTMF dual tones and allows you to check if they were successful.

This is a remote control with 2 inputs and 2 outputs, special because in addition to receiving SMS commands, as the other three devices described, it is also prepared to identify the standard dual tones that all mobiles and modern phones generate and send through the voice channel when we dial a number. This new remote can, therefore, be commanded calling its number, waiting for the reply and pressing the buttons on the keypad, each of the corresponding to a specific function; for security reasons, it accepts calls coming only from a reduced group of numbers (only 8 numbers) that you need to store in a list (list of enabled numbers) before being operative. The commands that can be sent concern the management of output relays as well as the reading of the status of the inputs and some operation settings.

 

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