Model PM1621M (PRD) X-ray and Gamma Radiation Personal Dosimeter


The PM1621M is the only simple to use radiation dosimeter with advanced features designed for non-technical personnel in government, law enforcement or the public sector at low cost. Its ability to detect and measure gamma radiation with user-selectable alarms makes this device ideal for volume deployment into most industrial, medical or emergency response applications.

In the event of a radiological emergency, first response teams equipped with the PM1621M can effortlessly monitor a wide area for radiological hot zones by simply clipping the unit to their utility belt. The PM1621M, in its ultra small shock resistant and watertight package, will alert the operator through a discreet vibration or audible alarm anytime it detects gamma radiation. The presence of the PM1621M will provide the end user with assurance that their personal health and safety are being monitored and they can focus on more immediate tasks. The instrument is designed to efficiently communicate to the user both critical stay time and personal dose rate information that encompasses the lowest levels of natural background.

Tests have shown the unit is more sensitive and responsive than commonly used Geiger Mueller radiation detection pagers. Ease of use, sensitivity, and durability under harsh environmental conditions make the PM1621M a robust and essential tool in the most demanding emergency response situations.

This instrument meets IEC 61526 standards for radiation protection survey instruments. Data – including the alarm event and time, and level of alarm exceedance relative to the preset threshold – for up to 1000 incident histories may be stored in the non-volatile memory of this instrument. All of this data may be transmitted to a PC through the IR-channel for processing, analysis and control.


Quick Specs


  • Detector Type: Geiger-Muller Tube
  • Detection type: Gamma
  • Weight: 150 g with battery
  • Size: 87 x 72 x 35 mm
  • Homeland Security
  • Emergency Responder
  • Safeguard and Nuclear Security
  • Radiological Area Mapping
  • Geological Radiation Survey
  • Hospitals
  • Nuclear Power Plants
  • Radiation Safety Officers
  • Industrial Monitoring
  • Government Research Labs
  • University Labs
  • X-Ray Technicians
  • Waste Processing
DetectorGeiger-Muller tube
Dose Equivalent Rate Measurement Range (DER) Hp(10)10µR/hr – 100R/hr (0.1 µSv/hr – 1 Sv/hr)
Energy Range10.0 KeV – 20.0 MeV
Energy Response relative to 0,662 MeV (Cs-137) within the full energy range±30%
Drop test on concrete floor0.7 m
Protection ClassIP67
Environmental Tolerances Temperature – relative humidityfrom – 40 up to + 60 °C up to 98% at 35 °C
Power SupplyOne AA alkaline battery
Battery Lifetime (at natural conditions)12 months
Battery Discharge IndicationLCD Indication
Dimensions87x72x35 mm
Weight (with battery), no more than150 g
Additional functionsPC Communication Mode


Downloadable resources such as datasheets, firmware, software, drivers and products manuals. Alternatively, you can browse resources directly by visiting our downloads page.

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