Description
AT-DM120 Professional Portable Radon Gas Detector.
The AT-DM120 Professional Radon Gas Meter with rugged housing and design is an advanced portable device intended for professional or industrial use that will allow you to make accurate measurements and generate alerts when dangerous thresholds are exceeded. The device is supplied in a protected carrying case so that it can be moved safely and comfortably to the measuring locations while protecting the sensor and all the elements of the device.
Radon is everywhere, although radon is considered to mostly affect people living in the at-risk areas, marked on radon maps.
It is important to take frequent measurements, especially on ground floors, basements and garages with poor ventilation, which is where we find a higher concentration.
What is radon gas?
Radon is a naturally occurring radioactive gas. It belongs to the radioactive decay chain of Uranium 238 present in soil. It is the only gaseous element in this chain and is formed from radium. It is an invisible, odorless and colorless gas. Through the process of radioactive decay, radon is converted into other chemical elements known as descendants and emits alpha-type ionizing radiation. Therefore, when inhaled the gas is harmful to the cells in the airways. It can also cause tumors, especially in the lung.
According to WHO estimates, in Spain around 2000 cases of lung cancer can be directly attributed to the presence of radon gas in homes and workplaces. The only way to detect radon is by taking periodic measurements with a radon gas metering device.
Technical Specifications. AT-DM120 Professional Portable Radon Gas Detector:
| Specification | Description |
| Product Dimensions | 154 × 80 × 34 mm (6.06 × 3.15 × 1.34 in) |
| Weight | 132.2 g |
| Display | LCD Screen |
| Measured Parameters | • Long-term Radon Average • Short-term Radon Average |
| Detection Technology | Ion Chamber Technology |
| Radon Measurement Unit | pCi/L |
| Accuracy | • 7 days: < ±20% • Long-term: < ±10% • After 1 month: < ±0.14 pCi/L |
| Measurement Range | 0 – 270 pCi/L |
| Operating Atmospheric Pressure | 12.5 – 15.4 PSI |
| Sampling Time | 1.5 seconds |
| Power Supply | 2 × AAA replaceable batteries (not included) |
| Standard Accessories | • Main Unit ×1 • Mini Screwdriver ×1 • Screws ×2 • English User Manual ×1 • Carrying Case ×1 |

























