D203S is the hot selling item in the market. Mostly used for light control lamp switch, general detection angle.
PIR (Passive Infrared Detector) are used to detect motion object like human movement. All the PIR sensor must work with Fresnel Lens, this version can detetc more than 8 meters.
Custom design is available
Higher in cost-performance
IR Receiving Electrode
2×1mm, 2 elements
≥1.4 ×108 cmHz1/2/W
Field of View
Infrared automatic PIR sensor light
Using battery power supply, PIR sensors are easily used in entrance, bathroom, corridor, and other temporary lighting places
1. Can PIR sensor detect animals?
PIR sensors are excellent in human and animal detection. They are mostly used in triggering an intruder alarm and activate household appliances upon the presence of a human.
2. Why is PIR sensor called passive?
The sensor is called passive because it doesn't emit light to get measurements. The sensor in PIR is actually split into two parts. The reason for that is to measure motion. The sensor is also sensitive enough to even detect IR radiation source movement while the object is already in it's field of view.Changes in IR energy are not easily detected through glass.