Ludlum 2242

Handheld survey meter

Ludlum 2242 – handheld survey meter from Ludlum Measurements. Detector: Two internal energy-compensated GM tubes. Weight as specified: 1.6 kg including batteries.

Detector: Two internal energy-compensated GM tubes1
Weight as specified: 1.6 kg including batteries1

Download product sheet (PDF)All values with references – for tender documents

Specifications checked against the manufacturer’s documents on 2026-10-16

Manufacturer’s product page (opens in a new tab)

Overview

Nuclear power & nuclear technology Defence, security & preparedness Emergency services & first response Environmental monitoring & radiation protection Industry & quality control

Specifications

The number after each value refers to the source listed below. Values are as published by the manufacturer; the exact configuration is always confirmed in our quotation.

Detector

Detector	Two internal energy-compensated GM tubes1

Measuring range

Sensitivity (two GM tubes)	1000 cpm per mR/hr & 17 cpm per mR/hr1
Energy response	Within 15% of true value from 60 keV to 3 MeV1

Connectivity & interface

Display range	0.1 mR/hr to 999.9 R/hr1

Power & battery

Power supply	2 "D" cell batteries1
Battery life and conditions	Typically 200 hours with alkaline batteries, low battery indicated on display1

Mechanical

Dimensions (H × W × L)	16.5 x 8.9 x 21.6 cm1
Weight as specified	1.6 kg including batteries1

Environment & ratings

Operating temperature	-30 to 50 °C1

The data comes from the manufacturer’s published documents. Manufacturers may change specifications; the current configuration and performance are confirmed in the quotation.

Documents

PDFDatablad (PDF)Datasheet · Ludlum

Sources

The number after each value refers to the source listed below. Values are as published by the manufacturer; the exact configuration is always confirmed in our quotation.

1
Model 2242 Gamma Exposure Scaler-Ratemeter
Publisher: Ludlum MeasurementsProduct page Specifications tab, 'Detector'; Specifications tab, 'Sensitivity'; Specifications tab, 'Power'; Specifications tab, 'Battery Life' … Checked 2026-10-16