ELK-6022 Universal 3-Zone Sensor

 This universal sensor has 1 built-in reed switch plus 2 external closed circuit zone inputs which allows it to secure up to 3 doors, windows, etc. It also features Elk�s industry leading two-way technology.
 


 � Compatible with ELK-M1XRFTW two-way wireless transceiver
 � Zones: Built-in reed, IN1, and IN3 (closed circuit terminals)
 � Front and back tamper option