Ludlum 78-9

Handheld survey meter

Ludlum 78-9 – handheld survey meter from Ludlum Measurements. Weight as specified: 2.9 kg, including batteries.

Weight as specified: 2.9 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.

Power supply	2 "D" batteries1
Battery life and conditions	Typically 250 hours with alkaline batteries1
Operating temperature	-15 to 50 °C1
Dimensions (H × W × L)	18 x 10.1 x 114 cm retracted, 396.2 cm fully extended1
Weight as specified	2.9 kg, including batteries1
Detector	Halogen-quenched GM pancake1
Energy response	Energy dependent (see Model 44-9)1
Display range	000.0–999.9 with indicators of cps and µSv/h1

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 78-9 – Stretch Scope Survey Meter
Publisher: Ludlum MeasurementsProduct page Specifications tab, 'Power'; Specifications tab, 'Battery Life'; Specifications tab, 'Temperature Range'; Specifications tab, 'Size (H x W x L)' … Checked 2026-10-16