DSC SECURITY WS4945 WIRELESS ALARM DOOR/WINDOW CONTACT/TRANSMITTER
This post contains affiliate links. As an Amazon Associate I earn from qualifying purchases DSC SECURITY WS4945 WIRELESS ALARM DOOR/WINDOW CONTACT/TRANSMITTER BUILT-IN REED SWITCH •Normally closed external contact input •1 lithium battery included •Case and wall tamper Product Features Built-in reed switch Normally closed external contact input 1 lithium battery included Case and wall tamper