A37 is used to detect CO2 concentration in different environments. The LCD displays CO2 concentration, temperature, humidity, and date/time together. Air quality is indicated with emoticons. When CO2 concentration gets too high, audio and visual alarm will go off.
FEATURES:
- Automatic baseline correction
- Audible and visual alarm
- Low battery indication
- Auto power off
- Backlight.
INCLUDES:
1 x A37 CO2 meter and 12-month warranty.
SPECIFICATIONS:
| Specifications | Range | Resolution | Accuracy |
| Carbon dioxide | 400ppm~5000ppm | 1ppm | ±(5%rdg + 50ppm) from 400ppm~2000ppm (at ambient temperature and humidity) |
| Temperature |   -10.0℃~50.0℃ | 0.1℃ | Typical accuracy: ±1℃ |
| Relative humidity |  0%RH~99%RH | 1%RH | Typical accuracy: ±5%RH (10%RH~90%RH) at 25℃ |
| Features | |||
| ABC | Automatic baseline correction | √ | |
| Audible and visual alarm | √ | ||
| Sensor type | NDIR (no-dispersive infrared) CO2 sensor | √ | |
| Response time | √ | ||
| Date/time | √ | ||
| Low battery indication | √ | ||
| Auto power off | <2minutes | √ | |
| 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 x 65mm | ||
| Product colour | White and grey | ||
| Product net weight | 195g | ||
| Product size | 75mm x 55mm x 130mm | ||
| Standard accessories | Micro USB interface cable | ||
| Standard individual packing | Box, blister, English manual | ||
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