Ludlum Model 44-9 with minor blemishes Panasonic High Voltage Adjustable from 400

High Voltage Adjustable from 400 to 2500 Vdc Threshold -1 to -100 mV Window No Overload Optional Temperature Range -20 to 50 °C (-4 to 122 °F)

TIMER: push-wheel adjustment from 0-999 minutes with selectable x0

Co-60: 27%

Can be turned into a cloud connected digital scaler/ratemeter/datalogger with our proprietary Counts

Alpha-Beta Sample Counter Head

Ludlum Model 44-9 with minor blemishes Panasonic High Voltage Adjustable from 400The Ludlum Model 44 9 is a "Pancake" style GM Detector. This detector is sensitive to alpha, beta, and gamma radiation. Its size and shape provide easy handling for surveying or personnel monitoring. The detector is energy dependent, over responding by a factor of 6 in the 60 keV to 100 kdV range when normalized to 137Cs. Application: Alpha, Beta, Gamma Survey, Sample Counting Detector: GM Pancake Active Open Area (cm2): 15 12, Window (mg cm2): 1. 7