Ludlum Model 52-1 Portable Portal Monitor Ludlum They can be used in

They can be used in another Gamma Products sample counter

Model 3 handheld analog ratemeter with the addition of an audible alarm

The rugged transport and storage case is foam-padded with cutouts in for each device and gives air- and watertight

0-20 & 0-200 mR/HR OR Sv UNITS 0-500

Ludlum Model 52-1 Portable Portal Monitor Ludlum They can be used inThe Model 52 1 Portable Portal Monitors are used for beta gamma contamination monitoring on personnel and meet the FEMA standard for Emergency Response Portal Monitoring (FEMA REP 21). They are designed to be disassembled for ease of transportation and storage, and can be set up in five minutes or less without any tools. Each instruments non volatile parameters are preset at the factory to detect a 1. 0 Ci 137Cs source in a 10 R hr background field.