$5 1 pcs Brown Door Contacts Surface Mount NC Security Alarm Window Industrial Scientific Commercial Door Products Commercial Access Control 1 pcs Brown Door Contacts Surface Window Mount Security Alarm NC Max 84% OFF $5 1 pcs Brown Door Contacts Surface Mount NC Security Alarm Window Industrial Scientific Commercial Door Products Commercial Access Control 1 pcs Brown Door Contacts Surface Window Mount Security Alarm NC Max 84% OFF NC,Alarm,Window,Mount,Contacts,Door,1,Security,/fub605190.html,www.guillermoteillier.cl,pcs,Brown,Industrial Scientific , Commercial Door Products , Commercial Access Control,Surface,$5 NC,Alarm,Window,Mount,Contacts,Door,1,Security,/fub605190.html,www.guillermoteillier.cl,pcs,Brown,Industrial Scientific , Commercial Door Products , Commercial Access Control,Surface,$5

1 pcs shipfree Brown Door Contacts Surface Window Mount Security Alarm NC Max 84% OFF

1 pcs Brown Door Contacts Surface Mount NC Security Alarm Window

$5

1 pcs Brown Door Contacts Surface Mount NC Security Alarm Window

|||

Product description

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. The door position switches operate with a built an internal magnetic reed switch that closes when the opposing magnet comes within ¾” of the door sensor. Hence when the door opens beyond the ¾” point the door position switch will switch from a closed signal to an open signal. When this happens the access control system or alarm system will sense the change in continuity and will know that the door or window has been opened. When the door or window shuts, the door sensor will notify your security system that the opening has been closed.

1 pcs Brown Door Contacts Surface Mount NC Security Alarm Window

SUZANNE HOLT

Norwex Independent Consultant
Silver Senior Vice President Sales Leader
Choose Suzanne as your Norwex coach!