uxcell Rolling Door Contact Magnetic Reed Switch Alarm with 3 Wires for N.O./N.C. Applications MC-52

Price: $16.49
(as of Mar 03, 2023 13:53:41 UTC – Details)

[Dimension] – Cable Length: 23cm/9.1″; Total Size: 48.7mm x 19.5mm x 10 mm/1.92 x 0.77 x 0.39 inch (L*W*H)
[Material] – The magnetic switch alarm is with durable zinc alloy housing for better rust resistance
[N.O./N.C.] – N.C. means Normally Closed: When the magnet together, the circuit is conductive( light on ); when the magnet separates, the circuit is not conductive ( light off ). N.O. means Normally Open: when the magnet separates, the circuit is conductive( light on ); When the magnet together, the circuit is not conductive ( light off ). When make order, pls check carefully!
[Applications] – The Rolling Door Contact is designed for use with window and door alarm systems, such as garage, industrial warehouse and shops, etc.