Sensaphone Wireless FGD-WSG30-HUM Humidity Sensor W ith Radio T ransmitter
Use the WSG Wireless Humidity Sensor exclusively with the Sensaphone WSG30 (Purchase Se parat ely) . This humid ity sensor includes both built-in radio transmitter and humidity sensor element for monitoring humidity wherever you install the sensor. The sensor comes with two AA alkaline batteries to power the sensor for up to two years. An optional plug-in power supply is also available. The batteries then become a backup if main AC power fails. Made by Sensaphone.