Ludlum 3001

Handheld survey meter

Ludlum 3001 – handheld survey meter from Ludlum Measurements. Enclosure rating and conditions: IP53. Weight as specified: 0.7 kg (excluding detectors and clips).

Enclosure rating and conditions: IP532
Weight as specified: 0.7 kg (excluding detectors and clips)1

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

Key features

Compatible external detectors: GM, scintillation, or proportional
Detector bias: 400 to 1500 Vdc
Linearity: ±10 %

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

Compatible external detectors	GM, scintillation, or proportional1

Performance

Linearity	±10 %1

Measuring range

Response time	User-selectable from 1 to 60 s, or Auto-Response Rate FAST or SLOW1

Electronics & signal

Detector bias	400 to 1500 Vdc1

Connectivity & interface

Display range	0.0 cps–99.9 kcps; 0.00 cpm–999 kcpm; 0.00 Bq–99.9 kBq; 0.00 dpm–999 kdpm; 0.00 µR/h–999 R/h; 0.00 µSv/h–999 Sv/h; operational ranges depend on the detector and dead-time configuration, and min/max can be limited to the calibrated range1

Power & battery

Power supply	Four alkaline “AA” batteries1
Battery life and conditions	Approximately 500 hours (as low as 60 hours with backlight configured for continuous-on)1

Mechanical

Dimensions (H × W × L)	16.5 x 11.4 x 21.6 cm2
Weight as specified	0.7 kg (excluding detectors and clips)1

Environment & ratings

Operating temperature	-20 to 50 °C1
Enclosure rating and conditions	IP532

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

Documents

PDFModel 3001 – Multi-Detector Survey Meter (data sheet)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 3001 – Multi-Detector Survey Meter
Publisher: Ludlum MeasurementsProduct page Specifications tab, 'Compatible Detectors'; Specifications tab, 'High Voltage'; Specifications tab, 'Linearity'; Specifications tab, 'Power' … Checked 2026-10-16
2
Model 3001 – Multi-Detector Survey Meter (data sheet)
Publisher: Ludlum MeasurementsDatasheet p. 2, Specifications, 'Environmental Rating'; p. 2, Specifications, 'Size' Checked 2026-10-16