Testing Equipment Comparison – Professional vs. Amateur

CRMs:
Pros – Resolution on diurnal fluctuation and climatic conditions, true integrators. Immediate results. Good for real-estate transactions where seller might tamper with closed house conditions.
Cons – Expensive tests, lower sensitivity to radon emissions, more error-prone as a result. New technology. Short-term testing only.

Electrets:
Pros – High sensitivity, Precision and accuracy are better, inexpensive, true integrators. Long or short-term measurement capability. Immediate results. Good for real-estate transactions. Proven technology.
Cons – No resolution on diurnal fluctuations or climatic conditions.

Charcoal Canisters:
Pros – Inexpensive. Easy to deploy.

Alpha Track: