QMseller MC-33C Normally Closed Recessed Window Door Contact Sensor Alarm Magnetic Reed Switch – (5 Sets)

Price: $17.99
(as of Dec 18,2022 12:51:59 UTC – Details)

Feature: 1.Designed for use with alarm systems. 2.Works for aluminum sliding windows and doors. 3.Great for use in family and factory window, door. etc. 4.Have small screw terminals which makes it much easier to wire. 5.Closed loop magnetic contact that features a terminal block style connection for accepting wire. Package Included: 5 Sets x Normally Closed Recessed Window Door Contact Sensors
Contact Type: NC (Normally Closed); Model: MC-33C
Work as an anti-theft alarm, ideal for metal door and window.
Closed loop magnetic contact that features a terminal block style connection for accepting wire.
NC means Normally Closed:When the magnet together, the circuit is conductive( light on ); when the magnet separate, the circuit is not conductive ( light off )
Package Included: 5 Sets x Door Contact Sensors