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 openNO. 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 WindowNO.

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 closedNC.  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                                                  


Description

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


Features:


Package Included:

20x Recessed reed switch