4pcs RC33 NO Recessed Wire Door Contact Sensor Alarm Magnetic Reed Switch White Microphone Stand Fasteners NC means Normally Closed:When the

NC means Normally Closed:When the magnet together

Description: The shower curtain hooks are available for rod of diameter 0

Fixed Type: Clamp

the load of the product is Max 5Kg

4pcs RC33 NO Recessed Wire Door Contact Sensor Alarm Magnetic Reed Switch White Microphone Stand Fasteners NC means Normally Closed:When theDescription: 1. NO means Normally Open: when the magnet separate, the circuit is conductive( light on ); When the magnet together, the circuit is not conductive ( light off ). When make order,pls check carefully! 2. NC means Normally Closed: when the magnet separate, the circuit is not conductive( light off ); When the magnet together, the circuit is conductive ( light on ). When make order,pls check carefully! 3. These are the door contact sensors