Wired Magnetic Contact Switch w/ Wire Cover for Doors and Windows (White Strip)

Sensor Overview
These wired magnetic contact switches are the type that mount on your door frame. The contact on this magnetic alarm switch is 'Normally Closed' when it's near the magnetic target. Once a gap of approximately 1" occurs, the switch will open and the alarm is triggered. Mounting screws are included.

This includes a cover that goes over the wire terminals in order to hide and protect them.

Ready-to-Arm Feature
These wired magnetic contact switches are the type that mount on your door frame. The contact on this magnetic alarm switch is 'Normally Closed' when it's near the magnetic target. Once a gap of approximately 1" occurs, the switch will open and the alarm is triggered. Mounting screws are included.

This includes a cover that goes over the wire terminals in order to hide and protect them.
  
Wired Connections
This wired door sensor uses 2 wires in total. 
Two wires are for power (+) and (-).
 
Installation
Mount the magnet and contact to the doors/window or and frame using the included mounting screws.
 
-- Sensor Specifications --
Voltage:  12v DC
Current: 2-5mA (Standby); 20mA (Alarming)
Best Working Temperature: Unknown

-- Sensor Dimensions --
Reed Switch: 2.50 x 0.75 x 0.50 inches (6.35 x 0.905 x 1.27 cm)
Magnet: 2.50 x 0.50 x 0.50 inches (6.35 x 1.27 x 1.27 cm)