Kietųjų dalelių PM2,5 matuoklis UNI-T A25D

PM2.5 Meter UNI-T A25D
A25D is a desktop air quality monitor used for monitoring the concentration of PM2.5 in homes, shopping malls, offices, stations, etc.

Atmosferic particulate matter (PM) is microscopic solid or liquid matter suspendedin the Earth's atmosfere, which can adversely affect human health. PM2.5 particles are air pollutants with a diametr of 2.5µm or less, containing soot, smoke, metals, nitrates, sulfates, dust, water, and tire rubber.
When we breathe, PM2.5 can get deep into our lungs and some may even get into bloodstream. Exposure to fine particles can affect the heart and lungs.


Product parameters :

- real-time measurement of PM2,5 concentration
- measurement of temperature and relative humidity
- Built-in LiPol battery
- 3 hours full charge time, can also be used while charging
- backlit display, when standard PM2,5 (115 μg / m³) is exceeded, backlight illuminates red
- in addition to exact values and orientation emoticons


Technical parameters :

Measurement of PM2,5 (μg/ m³):
- range 0 to 100 ± (10μg/m³ + 10dgts) / Ambient temperature: 18 to 28 ° C / ambient humidity: 40% to 75% RH
- range 101 to 400 ± (10% + 30dgts) / Ambient temperature: 18 to 28 ° C / ambient humidity: 40% to 75% RH
- range 401 to 500 ± (10% + 50dgts) / Ambient temperature: 18 to 28 ° C / ambient humidity: 40% to 75% RH

Temperature measurement ° C: -10 ° C to + 50 ° C (0.1° C/ ±1° C)
Humidity measurement: 0 to 99% RH (1% RH) / at ambient temperature 18 to 28 ° C

Powered by built-in LiPol battery 1500mAh
Backlit LCD display: 42 mm x 65 mm
Weight: 230 g
Size: 75 mm x 55 mm x 130 mm

Operating environment:
- for indoor and outdoor environments or vehicles
- altitude: less than or equal to 2000 meters
- operating temperature: -10 to + 50 ° C; Operating humidity: 0 to 99% RH

Package contents
- measuring instrument UNI-T, A25D
- charging cable
- instructions for use
 














Technical parameters :

1. Technical specifications :

Funkcion / Range / Resolution / Accuracy / Remark

PM2.5 / 0 to 500μg/m³ / 1μg/m³ / ±(10μp/m³ + 10dgts) / Ambient temperature : 18 to 28°C / Ambient humidity : 40% to 75%RH
@ 0 to 100μg/m³ range

PM2.5 / 0 to 500μg/m³ / 1μg/m³ / ±(10% + 30dgts) / Ambient temperature : 18 to 28°C / Ambient humidity : 40% to 75%RH
@ 101 to 400μg/m³ range

PM2.5 / 0 to 500μg/m³ / 1μg/m³ / ±(10% + 50dgts) / Ambient temperature : 18 to 28°C / Ambient humidity : 40% to 75%RH
@ 401 to 500μg/m³ range

Temperature / -10°C to +50°C / 0.1 °C / ±1°C

Humidity / 0 to 99%RH / 1%RH / ±5%RH @30% to 80% RH / Temperature 18 to 28 °C

Humidity / 0 to 99%RH / 1%RH / ±8%RH @less 30%RH / Temperature 18 to 28 °C
and @ more 80%RH



2. PM 2.5 Concentracion grading emoticons

Concentration Emoticon Backlight
( μg/ m³ )
0 to 35 Excelent White
36 to 75 Good White
76 to 115 Light pollution White
116 to 150 Midle level pollution Red
151 to 250 Serious pollution Red
251 to 500 Bad pollution Red



3. General characteristics

- powered by built-in LiPol battery 1500mAh
- backlit LCD display 42mm x 65mm, alarm - red backlight
- weight 230g
- external dimensions 75mm x 55mm x 130mm
- working principle: PM2,5 - laser scattering


4. Operating environment

- for indoor or outdoor environments or vehicles
- altitude: less than or equal to 2000 meters
- operating temperature: -10 to + 50 ° C; Operating humidity: 0 to 99% RH
- storage temperature: -20 to 60 ° C



Package contents :

- measuring instrument UNI-T, A25D
- µUSB-USB charging cable
- Czech and English instructions for use