System Sensor Wired Smoke & Heat Detector BK-2WTB
3/4 & 1" Recessed, Hardwired Contacts
The LNA-22 series is available with 12″ leads or a quick connect (see LNA 22 TC) model for faster installations.
3/4 & 1" Recessed, Commercial, Hardwired Contacts
This means, when the magnet is next to the contact (the door/window is closed), the circuit is open. Each pack contains 10 contacts and magnets.
This 3/4″ roller reed ball contact uses a special compressed plastic ball to keep it dirt and paint resistant.
3/8" Recessed, Hardwired Contacts