InStar IN-Motion 500 PIR infrared motion detector

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InStar IN-Motion 500 PIR infrared motion detector.

PIR sensor.

PIR stands for passive infrared or pyroelectric infrared. PIR sensors can be defined as detectors of warm-bodied objects in motion. A stationary target cannot be detected. To detect a moving target, its surface temperature must differ significantly from the ambient temperature. Although the usual targets of a PIR detector are warm-bodied (mammals, birds), a PIR sensor will also detect a moving target whose surface temperature is much lower than the ambient temperature. As long as the target is large enough and its surface temperature is detectably different from the ambient temperature (higher or lower) - and the target is moving - it can be detected by a PIR sensor.

Microwave sensor.

A microwave sensor detects motion on the principle of Doppler radar, similar to a speed radar. It sends out microwave pulses and measures the reflection from moving objects. They cover a larger area than infrared sensors, but are more susceptible to electrical interference. Microwave motion detectors differ from PIR motion sensors in that they are active devices. They emit energy and look for the frequency shift (Doppler) caused by motion in the covered area. A microwave motion sensor sends out high-frequency radio waves and then detects the level of energy reflected back to the device. If the radio wave hits a moving object, the frequency changes and the motion sensor is triggered.

Features:
-Suitable for indoor and outdoor use.
-Avoids false alarms thanks to the combination of microwave and PIR sensors.
-Special technology for recognizing people approaching the IN-Motion 500.
-Can be used with any InStar camera or other IP camera with an alarm input (C NC NO).
-The sensors can be used separately or together.

Specifications:

Manufacturer: InStar.
Model: InMotion 500.
Color: white.
Used product.

Package contents:

1 x InStar IN-Motion 500 PIR infrared motion detector.

Used product.
Checked and tested, fully working, practically like new.
No packaging.
No instructions.