The radon sensors in the Corentium Pro are delicate, especially to humid conditions, it is important that storage conditions are non-freezing and non-condensing.
We recommend that you keep the Corentium Pro in a dry and low RH environment. Storing the Corentium Pro in a vehicle during a prolonged amount of time is not advisable.
When doing an official radon measurement, remember to stay within the operating environment:
5% Relative Humidity to 80% RH non-condensing
39°F to 104°F / 4°C to 40°C