10Pcs RC-33 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch White - Product Features
- 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!
- Actuation Distance: 15-25mm ; Max. Current: 0.5A; Max. Contact Power: 10W ; Max.Working Voltage: 100V;
- Contact Type: NC (Normally Closed) ;Material: ABS
- Package Content: 10pcs x Magnetic Door Switch
- 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.