Radon Monitoring



	EPerm®	AlphaGuard®	AlphaPM®
	Electret Passive Dosimeters	Radon Meter PQ2000Pro	Radon Progeny Meter
Measures in air:	Radon gas concentration	Radon gas concentration	Radon Progeny -
Detection Principle:	Electret inside ion chamber	Ion chamber, diffusion (or optional external pump)	Sensitive semiconductor (PIPS)
Special Features and Advantagess	User/supervisor can make measurements using readout instrument supplied with system. Dosimeters are typically reusable several times. Passive dosimeters	High accuracy and very stable calibration. Measures and records concentration in Bq.m3 also temperature and humidity. Very versatile. Can use together with progeny head accessory to record both radon gas and progeny levels. Built in datalogger.	High sensitivity 130 pulses/h at 1 Bq/m³EEC. Lower detection limit 2 Bq/m³EEC at 10 min and 2 l/min flow
Options	Ionchamber / electret combinations	PC software, sampling pump, calibration kit, soil emanation kit	Use with AlphaGuard to determine 'Equilibrium Factor"
Other Applications	Radon in water, Soil emanation, environmental gammas, Thoron, Tritium	Radon in water, Soil emanation
Manufacture	USA	Germany	Germany



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