Disc ET is a ceiling mount PIR specially designed for energy management systems requiring high sensitivity and reliability. Disc ET is easily installed in any ceiling ...

Durable, elegant high-gloss housing with an integral swivel bracket for ceiling and wall mounting. Unique clip-on pet pattern mask. Adjustable 1, 2 and 3-pulse counter virtually eliminates false ...

[hclxing] eagerly picked up an LED ceiling light ... attached to a microwave sensor module. Most of us would probably expect to see a PIR sensor, but this light is motion sensing with microwaves.

(Passive InfraRed sensor) A device used to detect motion by receiving infrared radiation. When a person walks past the sensor, it detects a rapid change of infrared energy and sends a signal.