Humidistat Sensor Protects Your Equipment by Alerts to Your Sensaphone Remote Monitor Humidistat Humidity Switch is a hard-wired humidity sensor usable with all Sensaphone models to detect high or low humidity levels. Users set a high or low alarm limit by adjusting the dial on the front of the sensor. When that limit is exceeded, the device will trip an alarm to the Sensaphone. Made from high impact white plastic, a nylon sensing element provides long life and accurate humidity control. The sensor has a range of 10% to 80% relative humidity. Multiple sensors may be wired to a single input. The humidistat switch can be installed in any location, home or office, and will work accurately for many years. Humidistat Sensor FGD-0027 Specifications Operating Temperature 32 degrees to 95 degreesF | 0 degrees to 35 degreesC Humidity Range 10% to 80% Connection Hardwired Housing Plastic Dimensions 4.5 x 3 x 1.7 | 114 x 76 x 43mm Sensor Series Contact Series This item ships from a separate warehouse and may require extra time for delivery.