The Ludlum 192 Micro R Meter is a low level (Micro R) gamma meter. It features 4 ranges, auto adjust alarm settings and 2' x 1' sodium iodide (naI) T1 scintillator.
The 192 Micro R Meter's sensitivity typically is 700 cpm/microR/hr (Cs-137 gamma).
This unit is micro-processor based and has total counting range from 0-5,000 µR/hr.