3/4 Inch Recessed Magnetic Contact Sensor with Leads for Alarm Systems Suitable for Steel Doors - White (Pack of 10) security This L21-30R power cord connector

This L21-30R power cord connector is a 4-pole 5-conductor grounding heavy-duty plug

Support TVI input: 8MP@8fps(channel1) 5MP@20fps 4MP@30fps 3MP@20fps (channel1) 1080P@30fps 720P@60fps

5mm 4Cmale on one end and three RCA female connectors on the other

This 7-port USB 3

3/4 Inch Recessed Magnetic Contact Sensor with Leads for Alarm Systems Suitable for Steel Doors - White (Pack of 10) security This L21-30R power cord connectorThis 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