WSR-0101 Wireless Dry Contact Sensor for Use with the Sensaphone 2800 Monitor
Monitor a dry contact to know whether it is an open contact or a closed contact. The Sensaphone Remote Dry Contact Sensor WSR-0101 permits you to equipment remotely when installed and used with the Sensaphone 2800 (not included. The WSR-0101 Wireless Indoor Dry Contact sensor includes a built-in
radio transmitter and input terminals for connecting to any normally-open or
normally closed output. (Use of this device with solid-state outputs is not
recommended.) The sensor comes with 3 AAA alkaline batteries which will power
the sensor for up to 3 years. An optional plug-in power supply is also
available. The batteries then become a backup if main AC power fails.