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May 05, 2023 - 06:55 AM
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A bi-level PIR (Passive Infrared) motion sensor is a type of occupancy sensor that detects the presence of people or objects based on changes in infrared radiation emitted by them. This type of sensor typically has two different levels of sensitivity, and it can be programmed to trigger different actions depending on whether it detects minor or major movement.
For example, in a lighting control system, the bi-level PIR motion sensor can be used to turn lights on to a lower level of illumination when it detects minor movement in a space, such as someone entering a room, and then turn the lights up to full brightness when it detects more significant movement, such as when someone starts working in the space.
On the other hand, an on/off sensor is a type of switch that simply turns a device on or off based on the presence or absence of motion or light. This type of sensor is typically used in applications where the need for a specific level of illumination is not critical, such as in outdoor lighting or security systems.
In summary, the bi-level PIR motion sensor can adjust the level of lighting based on the amount of movement detected, while an on/off sensor can only turn the device on or off based on the presence or absence of motion or light.
A bi-level PIR (Passive Infrared) motion sensor is a type of occupancy sensor that detects the presence of people or objects based on changes in infrared radiation emitted by them. This type of sensor typically has two different levels of sensitivity, and it can be programmed to trigger different actions depending on whether it detects minor or major movement.
For example, in a lighting control system, the bi-level PIR motion sensor can be used to turn lights on to a lower level of illumination when it detects minor movement in a space, such as someone entering a room, and then turn the lights up to full brightness when it detects more significant movement, such as when someone starts working in the space.
On the other hand, an on/off sensor is a type of switch that simply turns a device on or off based on the presence or absence of motion or light. This type of sensor is typically used in applications where the need for a specific level of illumination is not critical, such as in outdoor lighting or security systems.
In summary, the bi-level PIR motion sensor can adjust the level of lighting based on the amount of movement detected, while an on/off sensor can only turn the device on or off based on the presence or absence of motion or light.