Testing a faulty PIR alarm sensor - OPTEX
21:58
How to wire a zone to your alarm system - magnetic door switch, passives and beam shown - tutorial
11:49
Riparazione e funzionamento di un sensore presenza PIR infrarossi per comando luci con modifica 12v
9:42
The DUALTEC explained ...PIR, MICROWAVE but WHY? (movement detector)
21:01
PIR Sensors And How To Use Them
5:31
How to make Laser Security (Theft) Alarm using SCR - 1 KM Range
10:29
How To Connect 2 Alarm Zones With Only Using 1 Alarm Wire.
12:27
How to test the zones on a burglar alarm system - tutorial
25:59