1 It can monitor the status of power supply on site by wireless remote control. 2 GSM temperature monitoring alarm can reject calls from authorized numbers without making a call. 3 Multiple applications (temperature, power state, solar panel, DC voltage). 4 Monitor external AC power status, AC on/off will send SMS to authorized phone number. 5 Set it once every once in a while (the user can set the time by himself) and automatically send its status to the authorized number.

What's in the box
1 x GSM Monitoring Device