IMPORTANT — PLEASE READ
As you may expect, this loop sensor (or any other sensor) does not "guarantee" complete protection against theft or vandalism.
All 5 WHT/RED sensing wires must be connected to Ground whether used or not. Wrap the sensing wires around and through the items to be protected. When the wire is cut or otherwise severed from Ground, then sensor will trigger an Alarm Blast.
To determine if this product can be used as a door courtesy signal converter in your application, please ensure your vehicle shows +12V when the door switch is OPEN and Ground when CLOSED. All 5 WHT/RED wires of the sensor are to be connected to the door courtesy switch or switches, and normally when all doors are closed, the 318-085 does not send any output. But when 1 or more of the WHT/RED wires becomes +12V or an open circuit, then the 318-085 will output a ground signal to the car alarm's door input wire.