Product Details

Specifications

Optical View Pattern

Accessories

MB-100: Swivel Mount Bracket

Technical Principle

Conventional PIRs frequently false-alarm because interference sources — thermal turbulence, bright light, electromagnetic interference, temperature changes, swaying trees — are all picked up and mistakenly interpreted as alarms.

DFIR™ mobile dual-frequency detection technology generates two infrared signals, processes them separately, and compares their frequencies.

How it works:

● Interference sources (shock, white light, RF, temperature changes, electrical surges, etc.) produce similar frequencies across the two signals — no alarm, though they would trigger false alarms in conventional PIRs

● Human movement produces different frequencies between the two signals — alarm triggered

Anti-Swaying function:

When trees or bushes sway in the wind, conventional PIRs generate false alarms. DFIR™ precisely differentiates: swaying trees trigger no alarm, human movement triggers an alarm.

Interference immunity:

DFIR™ effectively rejects RF interference, bright white light, thermal turbulence, non-moving changing-temperature objects, shock, electrical surges, and other common interference sources.

Technical Features

● DFIR™ dual-frequency infrared opto-electronic system — six-element detector, dual-channel independent processing

● Compares frequencies of two signals — same = reject, different = alarm

● Anti-Swaying — differentiates human movement from environmental swaying

● Rejects RF interference, white light, thermal turbulence, temperature changes, shock, and electrical surges