Features - PM2.5 particulate matter measurement - Temperature and humidity display - Illuminated LCD with alarm - Pictograms indicate air quality Technical Specifications Measurement Range PM2.5 0 ... 500 µg/m³ Resolution 1 µg/m³ Accuracy <100 µg/m³: ± (10 µg/m³ + 10 Digit) <400 µg/m³: ±(10 µg/m³ + 30 Digit) >400 µg/m³: ±(10 µg/m³ + 50 Digit) Temperature Measurement Range -10 ... 50 °C Resolution 0.1 °C Accuracy ± 1 °C Humidity Measurement Range 0 ... 99 % r.F. 1% r.F. 30 ... 80 % r.F.: ± 5 % r.F. Display LC-Display Backlight White (Standard) Red (Alarm) Battery Indicator Four-level display Auto-off after 2 hours
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