Description
UNI-T A37 Carbon Dioxide Monitor
The UNI-T A37 is a compact NDIR-based carbon dioxide monitor designed
for continuous indoor air quality monitoring. Its LCD display provides
simultaneous readings of CO₂ concentration, temperature, humidity,
and date/time information for comprehensive environmental monitoring.
The device features intuitive air-quality emoticons that allow users
to quickly assess indoor ventilation conditions at a glance. CO₂
readings are refreshed every 3 seconds, while audible and visual
alarms with red backlight indication warn users when CO₂ levels
exceed approximately 1000ppm.
Equipped with Automatic Baseline Correction (ABC), the A37 maintains
long-term measurement accuracy by recalibrating itself in fresh-air
environments. Its built-in rechargeable 3.7V Li-ion battery provides
more than 10 hours of continuous operation.
Compact, lightweight, and portable, the A37 is ideal for offices,
schools, homes, vehicles, laboratories, HVAC inspections, and other
indoor air quality monitoring applications.
Features
- NDIR (Non-Dispersive Infrared) CO₂ sensor.
- Automatic baseline correction (ABC).
- Audible and visual alarm system.
- Red backlight warning indication.
- Simultaneous CO₂, temperature, and humidity display.
- Date and time display.
- Low battery indication.
- Auto power-off function.
- Rechargeable Li-ion battery.
- Micro-USB charging support.
- Compact and lightweight portable design.
- Suitable for indoor air quality monitoring.
Specifications
| Specification | Range | Resolution | Accuracy |
|---|---|---|---|
| Carbon Dioxide (CO₂) | 400ppm ~ 5000ppm | 1ppm | ±(5%rdg + 50ppm) from 400ppm ~ 2000ppm (at ambient temperature and humidity) |
| Temperature | -10.0℃ ~ 50.0℃ | 0.1℃ | ±1℃ |
| Relative Humidity | 0%RH ~ 99%RH | 1%RH | ±5%RH (10%RH ~ 90%RH) at 25℃ |
| Features | |||
| ABC | Automatic Baseline Correction √ | ||
| Audible and Visual Alarm | √ | ||
| Sensor Type | NDIR (Non-Dispersive Infrared) CO₂ Sensor | ||
| Response Time | √ | ||
| Date / Time Display | √ | ||
| Low Battery Indication | √ | ||
| Auto Power Off | < 2 minutes √ | ||
| Backlight | √ | ||
| Operating Temperature | 0℃ ~ 50℃, 0%RH ~ 85%RH | ||
| Storage Temperature | -20℃ ~ 60℃, 0%RH ~ 95%RH | ||
| General Characteristics | |||
| Power | 3.7V DC Li-ion Battery / Micro-USB Charging Port | ||
| Display | 42mm × 65mm | ||
| Product Color | White and Grey | ||
| Product Net Weight | 195g | ||
| Product Size | 75mm × 55mm × 130mm | ||
Applications
- Indoor Air Quality (IAQ) assessment in offices and schools.
- HVAC ventilation efficiency verification.
- Greenhouse and agricultural grow room monitoring.
- Workplace safety monitoring in confined spaces.
- Home environment comfort and health monitoring.
- Library and archive preservation monitoring.
- Vehicle cabin air quality monitoring.
- Laboratory environmental monitoring.
Package Contents
- 1× A37 CO₂ Monitor
- 1× Protective Case
- 1× USB (Micro-USB) Cable
- 1× English User Manual
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