A door contact sensor uses a magnet and a built-in reed switch to reliably detect when a door is opened or closed, instantly signalling security systems or home automation setups.
- Reed-switch magnet pair detects open/close events
- Surface-mounted or recessed mounting options for versatility
- Hardwired or wireless configurations to suit various installations
- Instant alerts and system triggering for security alarms and automation
- Tamper detection is available in the advanced model
- Low power consumption – battery or circuit‑powered with minimal dra
- Discreet size, especially recessed versions hidden inside frames
- Reliable performance with simple mechanical design and few moving parts

