Ludlum Model 3 (With 44-9 or 44-38 Detector)
This is Ludlum's best selling, general purpose, handheld analog ratemeter known for accuracy and long-lasting dependability. The analog meter comes in a variety of measurement ranges and units to support the external radiation detector selected.
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 four-decade range, instrument shut-off, battery test, an audio on/off switch, a fast/slow response switch, and a count reset button.
4-Decade Analog Ratemeter
Supports GM & Scintillation Type Detectors
Greater than 2000 Hour Battery Life
|APPLICATION:||alpha beta and gamma surveying|
|DETECTION RANGE:||typically 0-200 mR/hr or 0-500000 cpm|
|COMPATIBLE DETECTORS:||GM scintillation|
|LINEARITY:||reading within 10% of true value with detector connected|
|HIGH VOLTAGE:||adjustable from 400-1500 Vdc|
|THRESHOLD:||fixed at 40 mV|