Ludlum 9-7

Handheld survey meter

Ludlum 9-7 – handheld survey meter from Ludlum Measurements. Weight as specified: 1.6 kg, including batteries.

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.

Compatible external detectors	Sold separately – Ludlum 9-7-BLD, 9-7-BM, 9-7-BH (9-7-BHL-1 after instrument modification); Eberline RO-7-LD, RO-7-BM, RO-7-BH1
Power supply	Two “D” cell batteries; battery life approximately 160 hours1
Operating temperature	-20 to 50 °C1
Dimensions (H × W × L)	24.1 × 9.7 × 23.6 cm, excluding detector1
Weight as specified	1.6 kg, including batteries1
Response time	Approximately 2.5 seconds to 90% of final reading1
Display range (exposure rate)	0.001 R/hr–19.99 kR/hr1
Battery life and conditions	Approximately 160 hours1

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 9-7 – Ion Chamber Display Unit
Publisher: Ludlum MeasurementsProduct page Specifications tab 'Compatible Detectors' and Detectors tab; Specifications tab, 'Power'; Specifications tab, 'Temperature Range'; Specifications tab, 'Size (H x W x L)' … Checked 2026-10-16