FGD-WSG30-TMP Wireless Temperture Sensor for Sensaphone WSG30 System The WSG Wireless Temperature sensor is designed to work exclusively with the Sensaphone WSG30. Purchase Separately This wireless sensor has a built-in radio transmitter and temperature element for monitoring temperature wherever the device is installed. Options include removing the internal temperature element and attaching a remote temperature probe for measuring temperatures in a refrigerator, freezer or other harsh environment. The sensor includes with two AA alkaline batteries which will power the sensor for up to two years. An optional plug-in power supply is also available If main AC power fails, the batteries back up the sensor. Package Contents 1 WSG Wireless Temperature Sensor 2 AA Alkaline batteries 1 Mounting kit Specifications Temperature Range 32 degrees to 122 degreesF 0 degrees to 50 degreesC with External Probe 109 degrees to 115 degreesF 85 degrees to 57 degreesC Sensor type 2.8K Thermistor Accuracy /- 1.0 degreesF /- 0.56 degreesC Range Up to 300 90m Power Requirements 2 AA Batteries / 5VDC Power Supply Router Mode Wireless Technology ISM 2.4GHz, 100 mW 20dBm Housing White plastic Size 3.1 x 3.8 x 1.1 7.9cm x 9.8cm x 2.85cm Compatibility WSG30 *Specifications subject to change without notice Made by Sensaphone This item ships from a separate warehouse and may require extra time for delivery.