Unitess AQM - real-time air quality monitoring for smart cities. Really cost-effective solution based on electrochemical sensors. Thanks to in-depth mathematical models, the instruments demonstrate excellent traceable accuracy under all temperature and humidity conditions.
The project won a tender from the European Commission to supply the system to the Republic of Belarus.
Product description
AQM-03 is designed to measure the concentration of toxic gases SO2, NO2, O3, CO, total volatile organic compounds and the mass concentration of particulate matter in the ambient air.
The devices are equipped with a robust, weatherproof, metal housing. Inside the case, the device consists of measurement units, a power supply and a data processing unit, which includes a software system for remote technical support, data management and analytics. The AQM-03 also contains a battery pack, which allows the device to be kept in working order for 6 hours in the event of a power failure.
Technical and metrological characteristics
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Name and units of measure of characteristics |
Feature value |
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AQM-03 |
AQM-03-1 |
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Measurement range, ppm: |
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SO2 |
0 - 10 |
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NO2 |
0 - 10 |
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O3 |
0 - 18 |
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CO |
0 - 32 |
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Total Volatile Organic Compounds |
0 - 25 |
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Detection limit, ppb: |
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SO2 |
35 |
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NO2 |
20 |
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O3 |
20 |
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CO |
800 |
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Total Volatile Organic Compounds |
100 |
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Limits of the reduced error in the range, %: |
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SO2 (0 - 1 ppm) |
15 |
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NO2 (0 - 1 ppm) |
15 |
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O3 (0 - 2 ppm) |
15 |
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CO (0 - 3 ppm) |
15 |
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Total Volatile Organic Compounds (0 – 2.5 ppm) |
30 |
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Limits of relative error in the range, %: |
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SO2 (1 - 10 ppm) |
15 |
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NO2 (1 - 10 ppm) |
15 |
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O3 (2 - 18 ppm) |
15 |
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CO (3 - 32 ppm) |
15 |
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Total Volatile Organic Compounds (2.5 - 25 ppm) |
30 |
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Measurement repeatability (SO2, NO2, O3, CO), % |
5 |
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Response time (t 90), s: |
60 |
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Particle range, μm |
0.5 - 15 |
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Max particle count rate, particles/second |
10000 |
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Range of indications, μg/m3 |
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РМ 2.5 |
0 - 500 |
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РМ 10 |
0 - 1000 |
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Measurement range, μg/m3 |
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РМ 2.5 |
- |
20 - 500 |
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РМ 10 |
- |
20 - 1000 |
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Measurement accuracy, % |
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±50 |
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Configurable parameters |
PM sampling interval, measurement and data transmission intervals |
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Warm-up time, min |
60 |
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Time to enter the mode, min |
60 |
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Supply voltage, V |
(230 ± 10) % |
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Power consumption, W, up to |
150 |
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Weight, kg, up to |
27 |
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