433MHZ Door Window Sensor detector working with 433mhz alarm system hub required
- 1.NC means Normally Closed:When the magnet together, the circuit is conductive( light on ).
- when the magnet separate, the circuit is not conductive ( light off ). When make order,pls check carefully!.
- Max.Working Voltage: 100V,Contacts Status : NC (Normally Closed).
- package Content : 6x Door Magnetic Switch.
- 5.These are the door contact sensors that are in use with any and all commercial or residential card access systems as well as all security burglar alarm system..