Connect a remote outdoor temperature sensor to your web-enabled thermostat, and you'll be able to monitor the outdoor temperature at your home when you're away, even adjusting your thermostat accordingly, if desired. The Proliphix Precision Outdoor Sensor provides precision remote temperature sensing for the IP Thermostat w/Remote Sensor Capability network thermostat. The temperature sensor's active sensing element is made of a highly stable precision thermal resistor material accurate to within +/- .36 F (0.2 C). Sold separately, the IP Thermostat w/Remote Sensor Capability will support up to two remote sensors. Additional sensors are sold separately. Mount the Proliphix Precision Outdoor Sensor horizontally in the shade for outside air temperature sensing. The temperature-sensitive element is sheated in a stainless steel tube and mounted inside a ventilated, treated PVC shield to minimize radiant energy and weather-related effects. The IP Thermostat w/Remote Sensor Capability can be controlled directly at the unit or monitored and adjusted remotely over an authenticated, secure and free Internet connection through the Proliphix website. The IP Thermostat w/Remote Sensor Capability is also available to be purchased in a kit with a 6-Port Power Adapter or a 2-Port Power Adapter.