Motion Human Body Sensor Switch

  Working Principle

The Infrared Motion Human Body Sensor Lamp Switch operates on the principle of infrared detection. When a human body enters the sensor's detection range, it emits infrared radiation due to its constant body temperature. This infrared radiation is then captured by the sensor's infrared sensing element, typically a pyroelectric material. As the infrared radiation is received, the pyroelectric material undergoes a change in temperature, resulting in a change in its electrical properties. This change generates a small electrical signal, which is then amplified and processed by the sensor's circuitry.

The processed signal triggers the switching mechanism, causing the connected load (such as a light bulb) to turn on. The sensor remains active and continues to monitor the detection range. When the human body moves out of the detection range, the infrared radiation decreases, and the sensor detects this change. After a preset delay period (which can be adjusted), the sensor turns off the load, thus achieving automatic control of the lighting system.

Key Performance Characteristics

1. High Sensitivity: The sensor is capable of detecting even subtle changes in infrared radiation emitted by the human body, ensuring reliable operation even in low-light conditions.
2. Intelligent Control: The switch utilizes advanced circuitry to distinguish between human motion and other potential sources of infrared radiation, such as sunlight or heat from appliances. This intelligent control feature ensures that the lights are only turned on when a human presence is detected.
3. Adjustable Sensing Range and Delay Time: Users can adjust the sensor's sensing range and delay time according to their specific needs and preferences, providing flexibility and convenience.
4. Energy-Efficient: By automatically turning on and off the lights based on human presence, the sensor helps to reduce unnecessary energy consumption, contributing to energy savings and a greener environment.
5. Durability and Longevity: High-quality materials and precision manufacturing ensure that the sensor is durable and can withstand extended use in various environments.

Large induction Angle long induction distance

Two adjustable

Ultra wide-angle sensing range

Flame-retardant fireproof enclosure