How Temperature Compensation in Motion Detectors Works and why it's Important

How Temperature Compensation in Motion Detectors Works and why it's Important

Motion detectors are a fundamental element of any security system, and they work by detecting movement within their coverage area. However, there are certain external factors that can trigger false alarms or even prevent the detector from detecting any movement. One such factor is temperature.

Temperature compensation is a vital feature in motion detectors that adjusts the sensitivity of the detector according to changes in temperature. This feature ensures that the detector continues to function accurately, regardless of the temperature changes.

How does Temperature Compensation Work?

Temperature compensation is a method used to adjust the sensitivity of a motion detector based on changes in temperature. When the temperature changes, it causes the sensitivity of the detector to fluctuate. Therefore, temperature compensation aims to maintain a consistent sensitivity level of the detector despite the changes in temperature.

Temperature compensation works by measuring the temperature of the environment around the motion detector. Once the temperature is measured, the detector can calculate the sensitivity level required for accurate detection.

The motion detector's sensitivity level is then adjusted by altering the voltage or current supplied to the detector's sensing element. This adjustment ensures that the detector's sensitivity remains consistent despite changes in temperature.

Why is Temperature Compensation Important?

Temperature compensation is essential for motion detectors as it ensures that they function accurately in varying temperatures. Without temperature compensation, motion detectors could be triggered by external factors such as changes in humidity or temperature, resulting in false alarms or missed detection.

In addition, temperature compensation can also extend the life of the motion detector. A detector that is constantly exposed to varying temperatures may experience premature wear and tear, reducing its lifespan. Temperature compensation reduces the detector's exposure to temperature fluctuations, leading to longer operational life.


Temperature compensation is an important feature in motion detectors that ensures accurate detection and extends their operational life. It is, therefore, essential to choose a security system that has temperature compensation features, such as those offered by ALD Security with their range of motion detectors and Safire Thermo Cameras that use thermal imaging to detect motion accurately.

It is also essential to consider the Ajax Security System, which is a popular wireless security system that provides temperature compensation features in its motion detectors, ensuring accurate detection in varying temperatures. With the Ajax Security System, users can also set up, manage and monitor their security system using their smartphone, thanks to the smartphone setup management feature.

In conclusion, temperature compensation is a crucial feature to consider when choosing a security system to ensure that your property is adequately protected.

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