Fielect Rolling Door Contact Magnetic Reed Switch Alarm with 2 Wires for N.C./N.O. Applications MC-56
- Total Size: 47.5 x 24 x 14.4mm / 1.87 x 0.94 x 0.57 inch (L*W*H).
- [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!.
- [Material] - The magnetic switch alarm is with durable zinc alloy housing for better rust resistance.
- [Widely Used] - This Door Contact switch ensor works with any access control or burglar alarm system available.