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DPU-3 Meter

Bild: Rotem

Rotem Industries

DPU-3 Meter

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

Area monitor with a 7-inch colour display whose background shows the radiation level in three colours. It is powered by PoE or AC and sends data via TCP/IP to a central web server (WebiSmarts), so that several users can see the readings online. It is available without an internal detector, with a low-range or wide-range detector, in an integrated version and as a remote display.

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)1
Detector
One internal and three external detectors, recognised automatically (also available without an internal detector)2
Weight
DPU-3: 1.7 kg2
Datasheet

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

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

Manufacturer’s product page

Overview

Key features

  • Supports a wide range of external detectors
  • Data wirelessly or over Ethernet
  • Light tower, signal interface and detector bracket as accessories

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

DetectorOne internal and three external detectors, recognised automatically (also available without an internal detector)2

Performance

AccuracyLinearity: within 10% of the true value with a detector connected2

Measuring range

Measurement rangeInternal 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)1

Connectivity & interface

Display7-inch colour display with three background colours by radiation level1

Power & battery

Power supplyAC mains or PoE1

Mechanical

MountingWall or tabletop1
Dimensions230 × 76 × 252 mm (L × W × H)2
WeightDPU-3: 1.7 kg2

Environment & ratings

IP ratingIP65 (hardened, high-impact plastic casing)1

Ordering & accessories

Ordering codeBAK-4384 without internal detector; BAK-4392 with low-range detector; BAK-4388 with wide-range detector; BAK-0336 remote display; integrated: BAK-4399, BAK-4398, BAK-43971

General

FunctionsEthernet area monitor powered by PoE, connected via TCP/IP to a central web server where several users see the data online1

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

Documents

PDFDPU-3 Area Monitor with internal detector data sheetDatasheet · RotemPDFDPU-3 Integrated low-range monitor data sheetDatasheet · RotemPDFDPU-3 Integrated wide-range monitor data sheetDatasheet · RotemPDFDPU-3 Remote Display Unit data sheetDatasheet · Rotem

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
    DPU-3 Meter
    Publisher: Rotem IndustriesProduct page Product page; Product page – DPU-3 Meter Models Checked 2026-10-16
  2. 2
    DPU-3 Area Monitor technical data sheet
    Publisher: Rotem IndustriesDatasheet TDS; p. 1, Functions; p. 3, Technical Data – Indicated Use; p. 3, Technical Data – Weight Checked 2026-10-16
WebiSmarts System
Rotem

WebiSmarts System

Web-based area and stack monitoring system with DPU-3 monitors

Primary function
Web software that receives online data from DPU-3 area monitors and shows them on colour-coded maps
Functions
One year of history per point; isotope identification of effluent; over 20 maps; real-time background subtraction; dose and dose rate at the same time
System components
Web software, DPU-3 monitors (four detectors each) and a stack monitor; maps, points and history are stored on a server and accessed with a browser
4 referenced values
Wide Range External Gamma Detector
Rotem

Wide Range External Gamma Detector

Smart wide-range gamma detector for WebiSmarts, 0.5 µSv/h – 10 Sv/h

Detector
GM tubes ZP-1301 and ZP-1201 (or equivalent)
Measurement range
0.5 µSv/h – 10 Sv/h (50 µR/h – 1,000 R/h)
Energy range
Gamma 50 keV – 2 MeV
11 referenced values
Wide Range External Gamma Beta Detector
Rotem

Wide Range External Gamma Beta Detector

Smart wide-range gamma and beta detector for WebiSmarts, 0.5 µSv/h – 10 Sv/h

Detector
GM tubes ZP-1301 and ZP-1400 (or equivalent)
Measurement range
0.5 µSv/h – 10 Sv/h (50 µR/h – 1,000 R/h)
Energy range
Gamma 50 keV – 2 MeV
11 referenced values
GM-42 Detector
Rotem

GM-42 Detector

Sensitive low-range GM gamma detector for clean rooms and radiopharmacies

Detector
GM tube ZP-1201 or equivalent
Measurement range
0.5 µSv/h – 10 mSv/h (50 µR/h – 1 R/h)
Energy range
50 keV – 1.3 MeV
9 referenced values
PM-11 Detector
Rotem

PM-11 Detector

Sensitive NaI(Tl) gamma probe, Rotem’s primary effluent detector in WebiSmarts

Detector
NaI(Tl), 5.1 × 5.1 cm (2 × 2 in); magnetically shielded 5.1 cm photomultiplier
Energy range
Gamma above 50 keV; recommended 30 keV – 3.0 MeV
Count-rate range
0–50,000 cps
8 referenced values
External Light Tower
Rotem

External Light Tower

Light tower showing the highest radiation level from the detectors on a DPU-3

IP rating
IP65 (IEC 60529), NEMA type 4X and 13
5 referenced values
External Signal Interface
Rotem

External Signal Interface

Ethernet relay board for controlling external devices from WebiSmarts

Relay outputs
8 relay channels 250 V AC/10 A, individually controlled; 8 external control outputs (active low)
Communication
Ethernet TCP/IP (RJ45) with on-board web server; RS-485 networking
Supply voltage
7–24 V DC
3 referenced values
Advanced Detector Bracket
Rotem

Advanced Detector Bracket

Detector bracket with LEDs and buzzer for local feedback far from the DPU-3

Weight
0.32 kg
4 referenced values
Contact us

Questions about this product?

We help you choose the right configuration, detector and accessories for your measurement task.

Send inquiryContact
Oscar ÅgerstamFounder & CEO
+46 (0)793-04 51 91 oscar@ndec.se +46 (0)793-12 32 48 (customer service)