GM-10 Detector

Pancake GM probe for alpha, beta and gamma surface contamination

Pancake detector for efficient surface monitoring of alpha, beta and gamma contamination on skin, clothing, shoes, bench tops, floors and equipment. It has a GM tube with a thin mica window in a rugged housing and connects to Rotem’s meters and area monitors.

Detector
Pancake GM tube LND 73118 or equivalent; mica window 1.5–2.0 mg/cm² behind a fine stainless-steel wire mesh1
Count-rate range
0–42,000 cps1
Weight
370 g (0.8 lb)1
Datasheet

Specifications checked against the manufacturer’s documents on 2026-10-17

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Overview

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.

DetectorPancake GM tube LND 73118 or equivalent; mica window 1.5–2.0 mg/cm² behind a fine stainless-steel wire mesh1
SensitivityApprox. 350 cpm per µSv/h (3,500 cpm per mR/h), ¹³⁷Cs1
Accuracy±15% of reading1
Count-rate range0–42,000 cps1
Operating temperature−10 to +50 °C1
Dimensions260 × 70 × 75 mm (L × W × H)1
Weight370 g (0.8 lb)1
Compatible metersDRM-3000, DPU-3, RAM DA 2000 and RAM R-200 (as RG-10)1

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

Documents

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. 1
    Publisher: Rotem IndustriesDatasheet TDS; TDS p. 1 Checked 2026-10-16
RAM DA3-2000 Meter
Rotem

RAM DA3-2000 Meter

Smart meter for a range of interchangeable external detectors, with internal GM detector

Detector
Internal detector (DA3-2000): two energy-compensated GM tubes, ZP1201 and ZP1313 (air kerma) or ZP1202 and ZP1314 (H*(10)); DA 2000 without internal detector
Measurement range
0.5 µSv/h – 1 Sv/h (50 µR/h – 100 R/h), internal detector
Weight
1.5 kg including batteries and internal detectors
14 referenced values
DRM-3000 Meter
Rotem

DRM-3000 Meter

Area monitor for one internal and three external detectors, with 7-inch display

IP rating
IP65 (hardened, high-impact plastic casing)
Weight
1.7 kg
11 referenced values
DPU-3 Meter
Rotem

DPU-3 Meter

Ethernet area monitor with PoE for WebiSmarts, with or without an internal detector

Measurement range
Internal low-range detector: 0.1 µSv/h – 40 mSv/h (0.01 mR/h – 4 R/h); wide-range detector: 0.1 µSv/h – 10 Sv/h (0.01 mR/h – 1,000 R/h)
Detector
One internal and three external detectors, recognised automatically (also available without an internal detector)
Weight
DPU-3: 1.7 kg
11 referenced values
RAM R-200 Meter
Rotem

RAM R-200 Meter

Rugged multipurpose survey meter for wide-range gamma and contamination

Detector
Two energy-compensated GM tubes: ZP-1202 and ZP1314 (or equivalent)
Measurement range
Internal detectors: 0.1 µSv/h – 1 Sv/h (10 µR/h – 100 R/h); with external probes gamma up to 100 Sv/h and alpha/beta 0–1 Mcpm
Weight
460 g including battery
15 referenced values
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