Ludlum Measurements
Nuclear Instrumentation

General Purpose Survey Meters

Model 3 GM-Scintillation Survey Meter (Model 3 pdf version)
Model 3A Alarming Survey Meter
Model 14C Survey Meter for Nuclear Medicine Applications
Model 12 Ratemeter
Model 16 Analyzer
Model 18 Analyzer  

Specialized Portable Meters

new Model 700 Series MCA / Gamma Spectroscospy

Model 3-IS Intrinsically Safe Survey Meter
Model 3-97 Beta-Gamma Survey
Model 3-98 Alpha, beta, low energy gamma survey
Model 3-97EP Explosion Proof Survey Meter
Model 78 Stretch Scope

Pocket Survey Meters

new Model 25 Personal Radiation Monitor, pager size

Model 2401-EC - Energy Compensated G-M Pocket Meter
Model 2401-ECA - Alarming Energy Compensated G-M Pocket Meter  
Model 2401-EC2 - Energy Compensated G-M Pocket Meter  
Model 2401-EC2A - Alarming Energy Compensated G-M Pocket Meter  
Model 2401-ECX - High Range Energy Compensated G-M Pocket Meter  
Model 2401-EW - Miniature End Window G-M Pocket Meter  
Model 2401-EWA - Alarming End Window G-M Pocket Meter  
Model 2401-P - Pancake G-M Pocket Meter  
Model 2401-S - Scintillation Pocket Meter  
Model 2402 - Pocket Survey Meter  
Model 2403 - Pocket Survey meter  

Geiger Counters

Model 5 Geiger Counter (dual internal G-M probes)
Model 6 Geiger Counter
Model 2242 Digital Scaler/Ratemeter (dual internal GM probes, similar to Model 5)
 

Portable Scaler/Ratemeters

Model 2221 Scaler/Ratemeter
Model 2224 Alpha/Beta Scaler/Ratemeter
Model 2241 Digital Scaler / Ratemeter
Model 2241-2 Digital Scaler / Ratemeter, calibrated for two probes
Model 2241-3 Digital Scaler / Ratemeter, calibrated for three probes
Model 2241-3i Digital Scaler / Ratemeter, calibrated for three probes and includes internal probe
Model 2242 Digital Scaler/Ratemeter (dual internal GM probes, similar to Model 5)

Emergency Response Kits

Model 2241-2RK Response kit (two detectors)
Model 2241-3RK Response kit (three detectors)
Model 14CRK Response kit containing Model 14C Survey Meter

MicroR Meters

Model 12S MicroR Meter
Model 12SA MicroR Meter
Model 19 MicroR Meter (Model 19 pdf version)
Model 19A MicroR Meter
Model 192 MicroR Meter
Model 193 MicroR Meter
Model 193-6 Survey Wand

Neutron Meters

Model 12-4 Neutron Meter
Model 15 Alpha, Beta, Gamma, Neutron Meter
Model 2363 Model 2363 Gamma/Neutron Survey Meter with Model 42-41 PRESCILA Probe

Specialized Monitors

Model 293-1F Floor Monitor
Model 4901P Pancake G-M Hand and Shoe Monitor

Portal Monitors

Model 52 GM Portal Monitor
Model 52-1 Scintillation Portal Monitor
Model 53 Portal Monitor
Model 53-1 Portal Monitor

Area  Monitors and Radioactive Waste Monitors

Model 375-30 Digital Waste Monitor
Model 375P-336 Waste Monitor
Model 375NET-32  Remote Area Monitor System
Model 375 Digital Area Monitor
Model 375/2 Digital Area Monitor with internal probe
Model 375/4 Digital Area Monitor with internal probe
Model 375-10 new Area / Waste Monitor -  low energy discriminator
Model 271 Remote
Model 3530 Waste Monitor
Model 3532 Waste Monitor
Model 3534 Waste Monitor

Alarming Rate Meters

Model 177 Alarm Rate Meter

Scrap Metal

Gate Monitors

Model 3500-1000  Gate Monitor
Model 4525-7000 Gate Monitor
Model 4525-10500 Gate Monitor
Model 4525-14000 Gate Monitor

Landfill/Transfer Station Monitors

Model 3500-1000 Gate Monitor
Model 375P-1000 Landfill Monitor
Model 375-20 Digital Waste Monitor
Model 375-30 Digital Waste Monitor
Model 3500-1000RWM Waste Monitor
Model 475P-1000 Waste Monitor

Pulsers

Model 500 series Pulser

Ludlum Survey Meters and Probes - new and pre-owned, used

Ludlum Probes

Alpha/Beta/Gamma Detectors

Model 44-7 End Window G-M Detector
Model 44-9 Pancake G-M Detector
Model 44-9-18 Pancake G-M Detector
Model 44-25 Pancake G-M Hand Frisker
Model 44-26 Pancake G-M Hand Frisker
Model 44-40 Shielded Pancake G-M Detector
Model 44-40-2 Aluminum housed lead shielded Pancake G-M Detector
Model 44-88 Cylindrical Pancake G-M Detector
Model 44-89 Square Cluster Pancake G-M Detector
Model 44-94 Diamond Cluster Pancake G-M Detector

Gamma Detectors

Model 44-2 1 " X 1" NaI Scintillator
Model 44-3 1" X 1" mm Low Energy Gamma Scintillator
Model 44-10  2" X 2" NaI Scintillator
Model 44-11  2" X 2" Integral NaI Scintillator
Model 44-17  2" X 2mm NaI Scintillator
Model 44-20 3" X 3" Integral NaI Scintillator
Model 44-62 1/2" X 1" NaI Scintillator
Model 133 Series G-M Detectors

Neutron Detectors

Model 42-5  Neutron Ball Cart and Detector
Model 42-30  Proportional Neutron Detector

Alpha Detectors

Model 43-1  Alpha Scintillator
Model 43-2  Alpha Scintillator
Model 43-5  50 cm² Alpha Scintillator
Model 43-44  50 cm² Alpha Air Proportional Detector
Model 43-44-1  100 cm² Alpha Air Proportional Detector
Model 43-65  50 cm² Alpha Scintillator
Model 43-90  100 cm² Alpha Scintillator
Model 43-92  100 cm² Alpha Scintillator

Beta Detectors

Model 44-1  Beta Scintillator
Model 44-110  Tritium Detector
Model 44-116 100 cm² Beta Scintillator
Model 44-142 100 cm² Beta Scintillator

Alpha/Beta Detectors

Model 43-1-1  Alpha/Beta Scintillator
Model 43-2-2  Alpha/Beta Scintillator
Model 43-68  100 cm² Gas Proportional Detector
Model 43-89  100 cm² Alpha/Beta Scintillator
Model 43-93  100 cm² Alpha/Beta Scintillator

Beta/Gamma Detectors

Model 44-6  Thin Wall G-M Detector
Model 44-21  Beta Gamma Scintillator
Model 44-38  Energy Compensated G-M Detector
Model 44-92 140 cm² Xenon Gas Proportional Detector
Model 44-98 BGO Scintillator