DSC Wireless Door/Window Sensor (WS4945)

DSC Wireless Door/Window Contact White WS4945 - Normally Closed Add a wireless sensor to your DSC alarm system with the WS4945 wireless door and window sensor. It includes a wireless transmitter and magnet for mounting to door and window frames.DSC WS4945 Wireless Door/Window Transmitter Features Built-in reed switch and also has normally closed external contact input Compatible with DSC 433 mhz receivers Dimensions 2.9x1.2x0.87 inches (75x31x22mm) Magnet dimensions: 44L x 23W x 27H mm DSC WS4945 Wireless Door/Window Transmitter Includes 1 lithium battery (average lifespan 5-8 years) 1x WS4945