3/8 Inch Recessed Magnetic Contact Sensor with Screw Terminal for Alarm Systems - White (Pack of 10)

This recessed mounted contact sensor is a hardwired security solution designed to provide discreet and reliable protection for residential or commercial space. It embeds directly into doors or windows, which offers a clean install with hidden profile that won't disrupt your interior decor while preventing sensor tampering. This sensor operates on a Normally Open (N/O) reed switch configuration for a standard closed-loop security system, meaning the circuit remains closed when the door or window is shut, triggering an alarm instantly if the connection is broken. Features: 3/8-inch diameter stubby press-to-fit design Magnetic contact switch easy to install in tight spaces Built-in terminal block for quick wiring Closed Gap, 3/4" (19mm) Departure Gap, 0.82" (21mm) UL Approved Physical Characteristics Color White Dimensions 23.5 x 11mm Loop Type Closed Reed Form N/O (Normally Open) Closed Gap 3/4" (19mm) Departure Gap 0.82" (21mm) Wiring Connection Built-in Terminal Block Maximum Initial Contact Resistance 0.150 Ohm Maximum Contact Rating 10W Maximum Switching Voltage 100 VDC/VAC Maximum Switching Current 0.5A Wire Range #20~#24AWG Approvals c(UL)us Compliant Environmental RoHS Compliant CE Compliant Packaging Information Package Quantity 10x Contacts 10x Magnets Product Weight 0.13 lbs Spec Sheets Spec Sheet