4 Sets Black Magnetic Reed Door Sensor Kit With NC And NO Contacts For Easy No Fuss Access Control And Alarm System Replacement Recessed Hidden Window Contact For Fast Install Works With Wide DC Voltage Range

4-Set Black Magnetic Reed Door Sensor Kit NC/NO Contacts
✔️ NC/NO configurable, 10-20 mm sensing, 30 cm cable length

These 4 sensor units come in a pack of 4, each with NC/NO contacts and 30 cm cable. Great for wooden doors or windows in homes or small offices, enabling simple access control and alert integration.

✅ Dia 10 x 26 mm (0.39 x 1.02 in) ABS body, 30 cm cable per unit
✅ Sensing distance 10-20 mm (0.39-0.79 in)
✅ NC/NO combined, normally open or normally closed
✅ Max switch voltage 100 V, current 0.5 A, power 10 W
✅ Cable color coding: Blue common, Black NC, White NO
✅ Pack: 4 sets included
✅ Ideal for wooden doors/windows and theft deterrence

💡 What is a door contact sensor with NC/NO contacts used for in home security and simple automation? This handy device helps monitor entry points and trigger relays when doors or windows move.
- Great for coordinating with alarm panels and automation relays
- Provides flexible NC/NO options for compatibility
- Compact housing fits discreet installations