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Technical Information

 

Double-layered Detection Patterns
Appropriate models

VX-402/402REC/402R, BX-80N/80NR

OPTEX's outdoor PIR detectors utilize the Multiple Detection Pattern technology, two double-layered detection patterns (upper and lower) both have to be activated to generate an alarm condition. This reduces false alarms, particularly those caused by temperature changes, light reflection and small animals.
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Multiple Detection Pattern of VX-402/402REC/402R

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Multiple Detection Pattern
of BX-80N

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Size Judging Function
The size judging function The size judging function virtually eliminates false alarms due to small animals and other moving objects like car.
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When only the lower zone detects a moving object, the unit is not activated.

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When only the upper zone detects a moving object, the unit is not activated.

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When both the upper & lower zones detect a moving object, he unit is activated.

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