The DUALTEC explained ...PIR, MICROWAVE but WHY? (movement detector)
11:54
PIR motion detector - HOW IT WORKS (easy to understand)
15:41
13 HOME SECURITY GADGETS YOU SHOULD SEE
7:43
Effective Ways To Detect People With Common Sensors
24:56
There are two types of smoke alarm. One of 'em ain't so good.
8:39
Microwave Motion Sensor, much better than PIR. Give it a try!!! | Home Automation Projects
11:06
This Smart Home Sensor Blew My Mind! 🤯 mmWave
9:12
DIY Home Security - ON A BUDGET!
9:06