General Purpose Alarming Ratemeter - Model 3A
CE Seal
Introduction

This is identical to Ludlum's best selling, general purpose, Model 3 handheld analog ratemeter with the addition of an audible alarm. The 3A is likewise known for its accuracy and long-lasting dependability. 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, and battery test, an audio on/off switch, a fast/slow response switch, and a count reset button. The analog meter comes in a variety of measurement ranges and units to support the external radiation detector selected.

A one meter (39 in.) long straight type detector cable with "C" style connector is included in the price of the instrument.

Compatible Detectors

 
 

Alpha
Detectors

Beta
Detectors

Gamma
Detectors

Alpha/Beta/Gamma
Detectors

Model 43-1
Model 43-2
Model 43-5
Model 43-65
Model 43-90
Model 43-92
Model 44-7
Model 44-9
Model 44-88
Model 44-89
Model 44-9
Model 44-1
Model 44-6
Model 44-7
Model 44-9
Model 44-21
Model 44-38
Model 44-88
Model 44-89
Model 44-94
Model 44-116
Model 44-142
Model 44-172
Model 44-2
Model 44-3
Model 44-7
Model 44-9
Model 44-10
Model 44-17
Model 44-20
Model 44-21
Model 44-38
Model 44-62
Model 133-2
Model 133-4
Model 133-6
Model 133-7
Model 133-8
Model 44-7
Model 44-9
Model 44-88
Model 44-89
Model 44-94

Alternate Survey Meters to Consider

Model 3 -  Same as Model 3A without alarms
Model 3-IS -  Intrinsic safety rating for operating in hazardous areas
Model 14C -  Includes internal GM with range of 0-2000 mR/hr