UNI-T A25D PM2.5 Air Quality Meter with Temperature and Humidity Display

UNI-T A25D PM2.5 Air Quality Meter with Temperature and Humidity Display

UNI-T A25D is a desktop air quality meter of the UNI-T A25 series that works on the laser scattering principle and measures temperature and humidity in addition to PM2.5 concentration; it uses a pre-calibrated sensor. The PM2.5 measuring range is 0–500 µg/m³ (1 µg/m³ resolution) with an accuracy of ±(10 µg/m³+10 digits) from 0 to 100 µg/m³, ±(10%+30 digits) from 101 to 400 µg/m³ and ±(10%+50 digits) from 401 to 500 µg/m³. Temperature is specified at ±1 °C (±1.8 °F) over -10–50 °C with 0.1 °C resolution, and relative humidity over 0–99% RH at ±5% RH within 30%–80% RH and ±8% RH outside it. The concentration is shown with a six-level emoticon, and the red backlight turns on above 115 µg/m³ PM2.5. It has an LCD backlight, automatic baseline correction, a battery status indicator and auto power off. Its 1500 mAh rechargeable battery charges in about 3 hours via micro USB; the dimensions are 75 mm × 55 mm × 130 mm and the weight is 230 g. The A25 series is used for monitoring PM2.5 in homes, offices, hotels, schools, factories, hospitals, restaurants and other public places.

Temperature Measurement-10–50 °C · ±1 °C (±1.8 °F); resolution 0.1 °C; °C/°F display
Humidity Measurement0–99% RH (resolution 1% RH) · ±5% RH (30%–80% RH); ±8% RH (<30% RH and >80% RH)
SensorÖnceden kalibre edilmiş PM2.5 sensörü
Automatic Baseline Correction (ABC)Available
PM2.5 Measurement0–500 µg/m³ (resolution 1 µg/m³) · 0–100 µg/m³: ±(10 µg/m³+10 digits); 101–400 µg/m³: ±(10%+30 digits); 401–500 µg/m³: ±(10%+50 digits)
Additional FunctionsGörsel alarm (PM2.5 115 µg/m³ üzerinde kırmızı arka ışık yanar), konsantrasyon derecelendirme ifade simgeleri (6 seviye: 0–35 / 36–75 / 76–115 / 116–150 / 151–250 / 251–500 µg/m³), low battery indicator, °C/°F seçimi
Auto Power OffAvailable
Operating Temperature-10–50 °C; 0–99% RH (iç/dış mekân veya araç içi)
Storage Temperature-20–60 °C
Power Source1500 mAh şarj edilebilir pil; micro USB ile şarj (5 V / 1 A)
Display Size42 mm × 65 mm
Product Dimensions75 mm × 55 mm × 130 mm
Gram230 g
Standard Accessories1 m mikro USB kablosu, İngilizce kılavuz
Charging Timeapprox. 3 hours (şarj sırasında kullanılabilir)
CertificationsCE, UKCA
ColorWhite and gri
Measuring MethodLazer saçılımı
Accuracy EnvironmentOrtam sıcaklığı 18–28 °C; ortam nemi 40–75% RH (nem doğruluğu için sıcaklık 18–28 °C)
BacklightÇift renkli LED arka ışık (beyaz/kırmızı); LCD arka ışık tuşla açılıp kapanır
Operating Altitude≤2000 m

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