650nm 5mW Red Dot Laser Module for PM2.5 Dust Detection

This Mini Size 650nm 5mW Red Dot Laser Module is a compact, high-precision core component tailored for PM2.5 dust detection equipment. It integrates 650nm red laser’s optimal dust scattering performance, 5mW stable output, and ultra-miniature design to enable accurate particle sensing—becoming an ideal choice for household air purifiers, portable PM2.5 detectors, and industrial air quality monitoring systems. Its small footprint and low power consumption ensure seamless integration while delivering reliable dust detection results.

Core Technical Advantages for PM2.5 Dust Detection

650nm Red Laser Dust Scattering Optimization: The 650nm wavelength efficiently scatters off PM2.5 and larger dust particles, maximizing light signal reflection for precise particle counting. This red dot laser module outperforms shorter wavelengths in distinguishing fine particles, ensuring the PM2.5 detector captures accurate concentration data without interference from air molecules.

2mW Stable Output for Consistent Sensing: With CW mode output (power fluctuation ≤±3%), the 2mW low power balances sensitivity and energy efficiency. It provides a steady red dot beam (dot size ≤0.8mm@20mm) that maintains uniform intensity over long-term operation, avoiding false readings caused by power drift—critical for continuous PM2.5 dust detection.

Ultra-Mini Size for Seamless Integration: Boasting a compact design (diameter ≤6mm, length ≤13.7mm) and lightweight (≤5g), it fits into narrow spaces in portable detectors or air purifier control panels. The mini form factor eliminates installation constraints, simplifying the design of small-sized dust detection devices.

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