Don't take a chance at having your automatic irrigation system go on as usual while freezing weather sets in overnight; only to wake up and see a landscape frozen over, with ice on adjoining driveways and sidewalks. The I/O Linc - INSTEON Freeze Sensor Kit can help prevent these situations before they happen. An INSTEON signal is sent when the temperature drops below 39 F to notify you of the concern. Ice buildup is hazardous to the life of your lawn and plants and can also be hazardous to those who may accidentally walk or drive on it. Additionally, you can take corrective action to avoid the threat of frozen pipes. As part of your INSTEON home automation network, this kit will act as an early alert system, triggering lights or appliances to turn on in the event that indoor or outdoor temperatures start to fall towards freezing. How it Works Simply mount the temperature sensor in an indoor or outdoor location, out of direct sunlight, and where free air circulation is possible. The sensor will identify when the temperature drops below 39 F. Once triggered, the contact switch inside the sensor will send a signal to I/O Linc via the included connector wire. The I/O Linc can then be linked to any INSTEON controlled device, alerting you that there is a problem or automatically activating corrective measures (i.e. shutting off irrigation systems, turning on heaters, etc).