Review: uRAD Monitor A3

Who says that everything is made in China or USA? Well, let me introduce you the uRAD Monitor A3 an Air Quality Monitor which is made in Romania, Europe since 2012. The design, firmware design, server software and big data database maintenance and development are all made there and amazingly enough even the unit that I have on my hands is made personally by the CEO Radu Motisan. As a result I am very proud to review it and talk about the cons and pros.


  • Temperature Sensor -40°C to +85°C / 40°F to 185°F
  • Humidity Sensor RT 0-100%
  • Air Pressure Sensor 300-1,100mbar
  • VOC Sensor 0 mg/m³ to 100 mg/m³ reducers – 10 mg/m³ oxidizers
  • PM2.5 Sensor 0 μg/m³ to 1000 μg/m³
  • Formaldehyde Sensor 0 ppm to 5 ppm
  • Carbon Dioxide Sensor 400 ppm to 5000 ppm
  • γ (gamma), x-rays Sensor 0.01μSv/h to 9999.99μSv/h
  • WiFi or LoraWAN or Ethernet or GSM
  • Built-in Speaker
  • LED Light

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How NO2 affects your health?

I can guess with high accuracy that your answer to the question of the image above is the Healthy Lung. If I guessed right, which I did, then I will advise you to be careful about what you breathe.

These are some gases that chemically poison the body’s oxygen transport systems, preventing oxygen from reaching the body tissues like the Carbon Monoxide CO, which combines with haemoglobin and blocks its ability to carry oxygen around the body, but there are some other gases that cause asphyxiation by producing severe irritation in the air passages and lungs like the Nitrogen Dioxide NO2.

NO2 dissolves in the moisture on any moist tissue surfaces, and forms strong acids or alkalis which then burn the delicate tissues. Health effects are related to its ability to dissolve in moisture to produce Nitric Acid which is a strong mineral acid.Read More »