DSC PowerSeries PG9905 PowerG 915Mhz Wireless Temperature Detector.

The PG9905 is an indoor temperature sensor that uses PowerG technology. It is not meant as a thermometer, but rather as a temperature limit sensor, notifying you when the area it covers crosses a programmed threshold. To increase the temperature limit or use outdoors, you can attach the PGtemp-probe. DSC PowerSeries PG9905 PowerG 915Mhz Wireless Temperature Detector The PG9905 is a wireless PowerG temperature detector that can be used both indoors and outdoors for monitoring the temperature of any given area. If you would like to monitor the outdoor temperature or the temperature of a freezer then a waterproof temperature probe is used. You can use this in circumstances where monitoring temperature can be critical such as:  Activating and deactivating pipe heaters at locations where low temperatures may cause the water pipes to freeze. Warn of possible electrical device malfunction due to high or low-temperature levels Alerting elderly people of a significant rise or drop in room temperature Specifications: Dimensions 92 x 36.5 x 31 mm (3-5/8 x 1-7/16 x 1-1/4 in.)Battery Life for 7 years (typical use)Battery Type 3 V CR123A Lithium batteryWeight 50 g (1.8 oz.)Operating Temperature (indoor) -20° to 50°C (-4°F to 122°F)Operating Temperature (outdoor) -30° to 70°C (-22°F to 158°F) DSC PG9905 Installation manualDSC PG9905 Specifications sheet Visible link quality indication is shown on the deviceProgrammable temperature warning and alarm thresholdsOptional probe to monitor refrigerator, freezer, and outdoor temperaturesFront and back tamper protected