Physen Wireless Door/Window Sensor Chime kit with 3 Magnetic Door Sensors and 2 Receivers with Operating at 600-feet Range,4 Volume Levels with 52 Melodies Chimes for Home/Office/Stores

Product FeatureVoltage of plug-in receiver: 100V-260VWorking range:260 feet in open areaReceiver volume Range:25-110 dBContact Sensor Battery Type: 1*CR1632 batteryInstallation Gap Between the big door magnetic and the small door magnetic:...