Save your property and equipment from costly damage by being warned in time. Install this unit in conjuction with a Sensaphone and be alerted when any of the sensors go beyond the preset limits. This sensor will measure and tell you the exact temperature of your property. The Remote Temperature Sensor for Sensaphone is compatible with all Sensaphone models and can be mounted anywhere you need the air temperature to be measured. Only one sensor may be wired per input.FGD-0100 Remote Temperature Sensor for Sensaphone