Ludlum Model 5 Geiger Counter Carbon Pail the Defender 500 series incorporates

the Defender 500 series incorporates features to make it immune to flow source pulsation without the need for in-line dampers

with a next-generation humidity sensor that is accurate

Response: toggle switch for fast (4 seconds) or slow (22 seconds) from 10% to 90% of final reading

They are supplied with the drive and supply lines

Ludlum Model 5 Geiger Counter Carbon Pail the Defender 500 series incorporatesThe Model 5 is a gamma exposure ratemeter equipped with two internally housed, energy compensated GM detectors that measure over the range of 0 20 mSv h (0 2000 mR hr). The aluminum cast instrument housing with its separate battery compartment and accompanying metal handle offer an industrial robustness and quality that promote long lasting protection and instrument life. The front panel controls include a rotary switch for selecting the five display