

The L Chamber has a volume of approximately 58 mL, and is intended for longer deployments (or for areas with a known high radon concentration) when paired with an electret.
Although it lacks the slide mechanism of the L-OO chamber, it is nevertheless highly compact and easy-to-use.
The L Chamber is compact and lightweight, and its smaller volume (when compared to the S Chamber) is designed for longer deployments, or for areas with a known high radon concentration.
Data sheet