10pcs DS1990A iButton DS9092 w/LED Zinc alloy Probe Reader Socket - Picture 11 of 11




                                             



Note:

please read the following carefully to ensure that the product is what you are looking for. Thank you

How to distinguish between Recessed NO Magnetic Window and Recessed NC Magnetic Window？

The Recessed Magnetic Window is composed of a reed switch and a magnet.

1. The reed switch is normally open（NO）. When there is no magnet approaching, two small pieces of magnetic reed are disconnected; 

when the magnet is close, two small pieces of magnetic reed are connected. This is a normally open Recessed Magnetic Window（NO）.

Switch Pattern:normally open (NO), when the door(magnet) closed, the switch keeps connecting

10Pcs/Lot Wired NO Wooden Door Contacts Magnetic Switch Access Control w/screws - Picture 11 of 12
 

2. The reed switch is normally closed（NC）.  Two small pieces of magnetic reed are connected when there is no magnet approaching.

Two magnets are separated when a magnet approaches. This is a normally closed Recessed Magnetic Window(NC)

Switch Pattern:normally closed (NC), when the door closed, the switch are separated.

10Pcs/Lot Wired NO Wooden Door Contacts Magnetic Switch Access Control w/screws - Picture 12 of 12



Specification:

         permanent magnet close reed switch(less 5mm), magnetic sensor is working station(short circuit). when magnet separate,it is normal open state.

         Normally open (NO), when the door closed, the switch keeps connecting

 


Package Included: