The compact Uni-T A25D air quality meter helps you quickly check the PM2.5 concentration and respond in time to worsening conditions. It offers a audible and visual alarm, automatic calibration, a backlit display, and auto power-off for convenient everyday use at home, in the office, and in commercial spaces.
The Uni-T A25D from the A25 series is a practical air quality monitor designed for typical environments where you want to keep track of fine dust particle levels. Thanks to the clear backlit display, you can easily read the values even in poor lighting conditions.
The meter focuses on PM2.5 and enables a quick assessment of the situation. As soon as air quality worsens, an audible and visual alert is activated. The automatic baseline signal calibration function helps keep measurements stable without complicated setup.
Main advantages:
- PM2.5 measurement in the range 0–500 µg/m³
- Audible and visual alarm for immediate warning
- Automatic baseline calibration
- Display backlight and low-battery indicator
- Auto power-off to save energy
- Powered by a 1500 mAh polymer battery (charging via Micro USB)
Package contents:
- A25 air quality monitor
- Micro USB cable
- User manual
Specifications
- Manufacturer
- Uni-T
- Measurement
- PM2.5
- PM2.5 range
- 0–500 µg/m³
- PM2.5 measurement accuracy
- 0–100: ±(10 µg/m³ + 10 dgts); 101–400: ±(10% + 30 dgts); 401–500: ±(10% + 50 dgts)
- Formaldehyde (HCHO) range
- 0–2 mg/m³
- Temperature (°C)
- for reference only; ±1 °C
- Temperature (°F)
- for reference only; ±1.8 °F
- Humidity
- ±5% RH at 30%–80% RH; ±8% RH at <30% RH and >80% RH
- Automatic baseline signal calibration
- yes
- Audible and visual alarm
- yes
- Low-battery indicator
- yes
- Auto power-off
- yes
- Display backlight
- yes
- Power supply
- 1500 mAh polymer battery
- Display
- 42 × 65 mm
- Color
- white-gray
- Weight
- 230 g
- Product dimensions
- 75 × 55 × 130 mm
