Based on a diffusion-type measurement chamber, the instrument allows simultaneous measurement of the activity concentration of radon (222Rn) and thoron (220Rn).
The necessary rapid exchange rate of sampled air is achieved by a highly permeable chamber placed outside the instrument housing. The relative sensitivity to thoron achieved with this configuration is comparable to that of pump-based instruments.
The modified measurement chamber was derived from the Radon Scout, while the electronics come from the RTM 1688-2. This means that more than 2000 data records, including a complete alpha spectrum, can be stored. Naturally, barometric pressure, temperature and humidity sensors are also integrated.
The Thoron Scout offers a larger screen compared to the Radon Scout. The replaceable batteries allow autonomous operation of approximately one month. It is possible to operate the unit by electrical power resulting in unlimited sampling periods.
A switching output can be used for alert purposes or to control ventilation equipment.
The instrument comes with a calibration certificate compliant with DAkkS. The calibration process for Radon (Rn-222) meets the requirements of the DIN ISO/IEC EN 17025:2018 standard.
