Two Pack MC31B Surface Mount Magnetic Reed Switch Kit For Door Sensors With NC And NO Contacts, Wired Magnetic Door Switch Black, Fireproof ABS, Compact 55x12.5x11.5mm, 100V DC, 0.5A, Easy Install

Two-Pack MC31B Surface Mount Reed Switch Kit for Doors
✔️ Two-pack: NC/NO/COM, 55×12.5×11.5mm, 100V DC, 0.5A

The MC31B surface mount magnetic reed switch kit is a compact, fireproof ABS device that signals door or window activity. It's a common choice for home security systems, offices, and small factories, delivering a reliable switching signal to alarm panels.

✅ NC/NO/COM contacts for flexible wiring and alarm logic
✅ Actuation distance 10-20 mm for reliable sensing
✅ Compact 55x12.5x11.5 mm black fireproof ABS housing
✅ Includes two switches and 8 mounting screws for easy install

💡 What is a surface mount magnetic reed switch used for in door security systems?

Handy, compact signaling device that detects magnet proximity and sends a switching signal to an alarm controller.

- surface mount magnetic reed switch for door sensors in security systems - handy signaling device that triggers alarm panels when doors or windows open - NC/NO/COM configurations for flexible alarm logic - compact 55x12.5x11.5mm fireproof ABS housing for easy installation