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The A37 air quality meter can monitor the concentration of carbon dioxide in the ambient air. Carbon dioxide CO2 is a naturally occurring gas that is produced in large quantities by human activity and is one of several greenhouse gases in our atmosphere. CO2 usually occurs in air in a volume concentration of only 0.0407% = 407ppm. If you breathe a higher concentration of CO2, you may be at risk of carbon dioxide intoxication. Symptoms of carbon dioxide intoxication include headache, irregular heartbeat, nausea, unconsciousness or even death.
The A37 monitors carbon dioxide levels, temperature and relative humidity. This device can be widely used in homes, offices, vehicles, laboratories, offices, hotels, schools, factories, conference rooms, airports, hospitals, restaurants, shopping malls and many other public places. The CO2 measurement range is from 400ppm (0.04%) to 5000ppm (0.5%). The device has an automatic CO2 calibration and then measures the CO₂ value once every 3 seconds and has the option of setting the system time and date. Then, by briefly pressing the MODE button, you can display the suspended data (HOLD), or the maximum and minimum (MAX and MIN) values, or the average values (AWG), or the average occupational exposure to CO2 during an 8-hour working day or a 40-hour working week (TWA function). ), or an acceptable limit of CO2 exposure for a short period of time (time weighted average), usually 15 minutes (STEL function). CO2 values are also indicated in six levels by emoticons. The device contains a rechargeable Li-ion battery, which you can charge with the included USB/micro USB cable from a 5V/1A source, which can be, for example, a phone charger.
Product parameters:
- the instrument measures the concentration of carbon dioxide CO2 - measurement method based on the principle of NDIR (non-dispersive infrared) CO2 sensor - renewal of the CO2 value in the interval 1x in 3sec - an audible and visual alarm if the CO2 concentration is >1 000 ppm - temperature and relative humidity measurement - backlight LCD display 42 x 65mm - automatic shut-off after 2 hours - built-in rechargeable Li-ion battery 3.7V DC - charging with the included micro USB/USB cable
Technical parameters :
Measurement accuracy : Measuring range CO2 / Resolution / Measurement accuracy 400ppm ~ 5000ppm / 1ppm / ± (5% rdg + 50ppm) in the range of 400ppm ~ 2000ppm
Temperature measuring range / Resolution / Measurement accuracy -10.0 °C ~ 50.0 °C / 0.1 °C / typically ± 1 °C
Humidity measuring range / Resolution / Measurement accuracy 0% RH ~ 99% RH / 1% RH / typically ± 5% RH (10% RH ~ 90% RH) at 25 °C
Other parameters :
- display: backlit LCD with dimensions 42 x 65mm - automatic and manual CO2 calibration: yes - renewal of the CO2 value: in the interval 1x in 3sec - built-in rechargeable battery: Li-ion 3.7V DC - charging: using the included micro USB/USB cable - product dimensions: 75 x 55 x 130 mm - net weight of the product: 195 g - product color: white and gray
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