Ludlum

Since 1962 Ludlum Measurements, Inc. (LMI) has been designing, manufacturing and supplying radiation detection and measurement equipment in response to the worlds' need for greater safety. Throughout its nearly 5 decade history, Ludlum has developed radiation detection technologies and instruments in support of enhancing the safety of personnel and the environment. 
Ludlum
LUDLUM M-3 SURVEY METER W/44-2
 
Ludlum
Ludlum 192 Micro Rad Meter
 
Ludlum
Ludlum Model 19 MicroR/Ratemeter
 
Ludlum
Ludlum Model 3 (With 44-9 or 44-38 Detector)
 
Ludlum
Ludlum Model 5 Geiger Counter
 
Ludlum
Ludlum 2241-2RK w/44-9 Probe