RadTarge II D300 | Electronic Personal Dosimeter

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The RadTarge II D300 | Electronic Personal Dosimeter by X-Z LAB is an all-digital electronic personal dosimeter covering a wide range of gamma and X-ray radiation.

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CE Mark

SKU: EPD-TAR-D300 Category:


RadTarge II D300 | Electronic Personal Dosimeter is a next-generation all-digital electronic personal dosimeter that combines four functions in one:

  • Dose Equivalent Rate Meter
  • Accumulated Dose Meter
  • Active Self-Reading Dose Meter
  • Active Self-Alarming Dose Meter

This pager-like, direct-reading EPD accurately detects and measures radiation exposure for workers and responders in potentially hazardous environments.

RadTarge II D300 | Electronic Personal Dosimeter uses a YSO scintillation detector combined with a state-of-the-art silicon photomultiplier (YSO+SiPM) and multi-voltage threshold (MVT) algorithm to detect a wide range of radiation doses.

Proportional, real-time detection and measurement provide meaningful readouts that focus on the awareness and safety of the user during critical times. The fast response and wide dose rate range maximize the safety of your team. Intuitive menu-driven navigation allows users to adjust settings in the field.

A blue acrylic tamper-proof label prevents users from opening the instrument, thus ensuring operational integrity for compliance and liability concerns.

RadTarge II D300 | Electronic Personal Dosimeter is designed to process routine personnel dosimetry on which occupational dose of records are based.



Technical Specifications


YSO Scintillator + SiPM

Type of Radiation Detected

Gamma, X-Ray

Energy Range

30 keV–1.5 MeV

Dose Rate Range

50 μrem/h–500 mrem/h (0.50 μSv/h–5 mSv/h)

Integrated Dose Range

1 μrem–10,000 rem (0.01 μSv–100 Sv)


90 cps/mrem/h (9 cps/μSv/h) (∝ Cs-137)

Energy Response

≤ ±40% (∝ Cs-137)

Dose Rate Linearity

≤ 10% up to 500 mrem/h (5 mSv/h)


±5% (∝ Cs-137)

Alarm Threshold

User-Set Values for Dose Rate: 100 μrem/h–500 mrem/h (1 μSv/h–5 mSv/h)

Alert Options

Audible (80 dB at 12 in ∕ 30 cm), Visual (LED and Display), Vibrating

Alarm Response Time

< 8 s

Overload Display

Overload Indication up to 1,000 rem/h (10 Sv/h)


MicroUSB, RadSuite-Dose (Mac/PC Software)


Upward-Facing, Tilted Screen

Power Supply

Rechargeable Lithium-Ion Battery

Battery Life

Typically 200 h in Background Field


Backlit LCD


2.1 oz (60 g)


2.7 x 1.8 x 0.7 in (69 x 46 x 17 mm)


MicroUSB Cable

Operating Temperature

32–122 °F (0–50 °C)

Storage/Transport Temperature

-4–158 °F (-20–70 °C)

Relative Humidity

Up to 90% RH (Non-Condensing)

IP Rating



Exceeds IEC 61526 Requirements



More Details


1 | Features

Digital Data Acquisition
  • All-digital solid-state detection
High Performance Detection Design
  • High-performance YSO crystal
  • Miniaturized SiPM
  • High-speed chip enables fast response and the smallest dead time in industry
  • Patented MVT digital signal processing technology provides excellent performance and stability
  • Background radiation interference virtually eliminated
Rapid Response
  • Full-range reading and alarm response in less than 8 seconds
  • Higher sensitivity allows for earlier detection
  • Audible output quickly alerts responders of rapidly changing radiation levels
  • Real-time, active self-reading
Quality Control System
  • Auto-calibration
  • Virtual elimination of false alarms
  • Ability to discriminate between background radiation and man-made source
  • Programmable chips enable firmware updates and system upgrades
  • Ultra-low power consumption
  • High system stability and reliability
  • Accurate and reliable data
  • Precise quantitative analysis


2 | Benefits

  • As an active self-reading device, both dose rate and accumulated dose are measured in real time, enabling users to always be aware of current exposure
  • Ergonomic upward-facing large backlit LCD display offers users readability in dark or bright environments
  • Pocket-sized portability with convenient belt clip
  • Three types of alarms alert users in a multitude of ways: vibrating, audible and visual
  • Alarm level is either preset or user programmable through entire measurement range
  • Intuitive menu-driven navigation allows user to adjust settings in the field
  • Easy one-handed operation with just two buttons, allowing total control with a thumb
  • Proportional, real-time detection and measurement provides meaningful readouts which focus on the awareness and safety of the user during critical times
  • Patented MVT sampling method resulting in no signal loss and high signal-to-noise ratio
  • Low-power CMOS digital electronics combined with digital silicon photomultiplier (SiPM) chip
  • Dose and dose rate alarms provide additional awareness of high radiation levels
  • Blue acrylic tamper-proof label prevents users from opening the instrument, thus ensuring operational integrity for compliance and liability concerns

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