Polimaster Innovating radiation detection technologies since 1992

Wrist Gamma Dosimeter РМ1603B

Dosimeters perform monitoring and measurement of ambient dose equivalent and ambient dose equivalent rate in the wide energy range - from the natural background level up to 5-10 Sv/h (500-1000 R/h). Instruments have two thresholds in DER and DE ranges and non-volatile memory for data storage. Hermetic, water-resistant and shockproof case and the fluorescent backlight on LCD screen allow to use instruments in harsh and extreme conditions.  

PM1603A and PM1603B dosimeters are recommended for emergency services, customs and border patrol, radiological and radioisotope laboratories, medical professionals, personnel of nuclear facilities, civil defense, fire secure and police.


Learn more

Operation Principle

PM1603A and PM1603B models are energy-compensated wrist dosimeters of pocket size that measure personal dose equivalent (DE) and personal dose equivalent rate (DER) of both gamma and X-ray radiation. Dosimeters have two alarm thresholds. If the preset dose and dose rate thresholds are exceeded, instruments immediately alerts the user through an audible alarm. Dosimeters store up to 1000 events in non-volatile memory and transmit all recorded data via an infrared channel to a PC for further processing and analysis.

Network Functions

Dosimeters can be integrated into Personal Dose Tracker System developed by Polimaster for continuous account for external radiation exposure, maintenance of dose history database and calculation of the personnel accumulated doses (individual as well as group doses) during the set period of time, automated preset threshold (individual as well as group thresholds) alarm signal. 


  • Access Control
  • Emergency Response
  • Guest dosimeters

Standards Compliance

Designed to meet IEC 60846-1:2009 requirements

Meets EN 55022:2010 standards according to provisions of 89/336/EEC Directive


Detector Geiger-Muller tube
Dose equivalent rate (DER) measurement range 1 µSv/h – 10.0 Sv/h
DER indication range 0.01 µSv/h – 13.0 Sv/h
DER measurement accuracy ±(15 + К1/Ḣ+ К1Ḣ) %, where Ḣ = DER value, mSv/h; К1 = coefficient equal to 0.02 (mSv/h); К2 = coefficient equal to 0.002 (mSv/h)-1
Dose equivalent (DE) measurement range 1.0 μSv - 9.99 Sv
DE measurement accuracy ± 15 %
DE indication range 0.01 μSv – 9.99 Sv
Energy response relative to 0.662 MeV:
137Cs, no more than ± 30 %
Energy range 0.048 – 3.0 МeV
Ingress protection IP67
Drop test on concrete floor 0.7 m
Alarm Type audible
Power supply (2,95 ± 0,25)V (one battery, type CR2032)
Battery lifetime:
using LCD backlight not more than 5 s/day, audible alarm – not more than 20 s/day and at an average value of the measured DER up to 0.3 μSv/h, at least 9 months
Additional functions Clock-calendar mode (time, date), timer mode (set of time intervals) , stop-watch mode (measurement of time intervals)
Dimensions 50 х 56 х 19 mm
Weight 0.085 kg
PC communication IR adapter
Operating temperature - 50 up to plus 50 °С
Atmospheric pressure from 84 up to 106.7 kPa
Humidity to 100 % at 40 °С
Mean service lifetime 8 years

Related products

Electronic Dosimeter PM1211
Electronic Dosimeter PM1211 Learn more
Personal Radiation Monitor/Dosimeter PM1605
Personal Radiation Monitor/Dosimeter PM1605 Learn more
Survey meter PM1405
Survey meter PM1405 Learn more
Personal Radiation Monitor/Dosimeter PM1605BT
Personal Radiation Monitor/Dosimeter PM1605BT Learn more