PRM-8000 Geiger Counter - Nuclear Radiation Contamination Detector & Monitor

Condition: New product PRM-8000 Geiger Counter - Nuclear Radiation Contamination Detector & Monitor By Mazur Read More Specs in More Info. Read about one of best called Radiation Meter Called the Inspector Vs. The Mazur. Check out the advantages why the Mazur is better than the compitition.

Read about the advantages this model versus the Inspector or the compitition at the bottom..





PRM-8000 Handheld Geiger Counter and Nuclear Radiation Monitor

Scan items for nuclear radiation, detect Naturally Occurring Radioactive Materials (NORM) and continuously monitor your environment.

The meter delivers laboratory grade performance in a compact unit and measures alpha, beta, gamma and x-radiation.

Accurate, reliable, made in the USA, the PRM-8000 Geiger counter is an ideal solution for individuals, health physics professionals, educators, researchers, outdoor enthusiasts and rock collectors.

Unique Monitoring Capability

The instrument is designed to continuously collect measurements and statistics enabling complete environment assessment. This vital capability is not available on similarly priced products.

Using only one key, users can scroll through several screens that display present, average, maximum and minimum measurements in uR/hr, mR/hr, uSv/hr, Counts per Second (CPS) or Counts per Minute (CPM).

This nuclear detector not only records the maximum radiation measured, but also displays the time and date at which the maximum reading occurred. Conventional Geiger counters require the user to be looking at the radiation meter to capture such events.

Supports English and Japanese

The two-line, alphanumeric display supports both English and Japanese languages promoting ease-of-use and concise measurement. The display is backlit to support low-light conditions.

Industry Leading Battery Life

The battery life of this radiation detector and monitor is over 6-years under normal conditions from a single, readily available, 9-volt lithium battery that is user-installable without soldering.

Standard alkaline 9-volt batteries, available virtually everywhere, provide over 3-years of life under normal conditions.

Data Logging and USB Connectivity

With over 100K bytes of internal data logging memory included, this Geiger counter can autonomously (without the need for a PC) store up to 91,466 minutes or hours of time-stamped measurements. These measurements can then be uploaded later to a PC in CSV format for analysis.

A user-settable dose rate alarm sounds an audible alert when the measured radiation level exceeds that of the alarm level setting.Designed by Mazur Instruments and manufactured in the USA, the PRM-8000 Geiger counter and nuclear radiation monitor includes abundant I/O options including support for headphones, external speakers, external power and USB data exchange (Requires Optional 3.5mm to USB Adapter Cable).



Battery Life1
Standard 9V Lithium 60,000 Hours / 6.85 Years
Standard 9V Alkaline 28,250 Hours / 3.22 Years (included)

Measurement Front End
Detector LND 712 Geiger-Muller tube, Halogen-quenched with mica end-window
Radiation Detected alpha, beta, gamma and x-radiation
Energy Sensitivity alpha: minimum 2.5 MeV; efficiency at 3.6 MeV > 80%
beta: minimum 50 keV with 35% efficiency at 150 keV 75%
gamma/X rays: min 10 keV (window), min 40 keV (case)

gamma sensitivity: 1,000 CPM/mR/hr
calibrated to Cesium-137 (Cs137)
Accuracy ±10% Typical, ±15% Maximum
Measurement Ranges 0.001 to 200 mR/hr
0.01 to 2,000 uSv/hr
1 to 200,000 uR/hr or CPM (1,000 CPM/mR/hr)
0 to 3,333 CPS (16.66 CPS/mR/hr)
Total Count: 0 to 4,294,967,295 (32 Bit Integer)
Measurement Statistics Continuous availability of Elapsed Time, Average, Minimum and Maximum dose rate in either uR/hr, mR/hr, uSv/hr, CPS or CPM

Time stamp on new maximum
Timed Measurement Selectable 1, 5, 10, 20, 30, 60 and 90 minute interval
Dose Rate Alarm Alarm can be set in mR/hr or uSv/hr to any value within the measurement range

Internal Data Logging
Storage 100,000 Bytes non-volatile memory
Logging Intervals Every Minute or Every Hour
Maximum Capacity 91,466 Minutes or Hours
(90% Normal Background, 10% Full-Scale)
Minimum Capacity 32,656 Minutes or Hours
(100% Full-Scale Measurement Levels)
Logging Output Format Standard Comma Separated Value (CSV) with time stamp and CPM Data (1,000 CPM/mR/hr)

User Interface
Languages Supported English and Japanese
Display Two-Line, 14 character transflective LCD with back light for low light conditions
Keypad Weather resistant commercial-grade membrane keypad
Visual Indicator LED pulses on and off when a radiation detection event occurs. LED can be disabled.
Audio Indicator Tone beeps when a radiation detection event occurs. Audio three volume levels and can be muted.

Input / Output
Audio Output / Digital Interface Standard 3.5mm jack with three selectable volume levels for output to audio systems, computer speakers or media player headphones.

Jack can also be provisioned by the user for pulse output or as a USB Interface for logging data by PC or transferring internal data logging memory (requires optional cable)
External Power 9 VDC at a minimum current rating of 100mA

Environmental / Physical
Temperature Range -20° to 51° C (-4° to 125° F)
Size 143 x 83 x 35 mm (5.63" x 3.25" x 1.37")
Weight 198 grams (7 oz.) including battery
Compliance CE, Lead-Free

Independently tested and found to be substantially compliant with FCC requirements for home use. Approval to display FCC logo pending.


One Year (60 Days on GM Tube)


1. Assuming that background radiation is less than 25 CPM, the device is using the low-power setting and temperature of operation is 25° C (77° F).

All specifications are subject to change without notice.

• The PRM-9000 has been judged by numerous users to have a considerably better look, feel and build quality over the Inspector. There is no comparison when you look at both units side-by-side.

PRM-9000 vs. Inspector

• The PRM-9000 has a considerably longer battery life: Years vs. Days

• The PRM-9000 provides Inline Statistics and is designed to be always keeping average, maximum and minimum recorded values. The PRM-9000 also tells the user when (Time and Date) maximum measurements were recorded. This is important because users can assess their environment quickly and in an ongoing manner. They can also catch one-time events (such as an X-ray pulse) that may occur when they are away from the unit or sleeping. With the Inspector, you must be watching the unit to know the measurement. There is no unattended function with the Inspector.

• The PRM-9000 uses a two-line text display and with one key, users can scroll through pertinent values to size up their environment. Users can also setup timed measurements with intuitive text menus. The Inspector uses a 7-segment LCD.

• The PRM-9000 has a backlight for low-light conditions, the Inspector does not.

• The PRM-9000 has internal logging of measurements that can later be uploaded to a PC, the Inspector does not.

• The PRM-9000 has a USB option, the Inspector has no PC interface options.

• The PRM-9000’s maximum reading is 125 mR/hr the Inspector is 110 mR/hr.

• The PRM-9000 has a headphone jack designed to be used with ear-buds, with three difference audio volume levels, the Inspector does not offer this level of audio control.

• The PRM-9000 relies on a tactile membrane keypad sealed from the environment, the Inspector uses slide switches and push buttons that air open-air.

• The PRM-9000 has an internal day-date clock, the Inspector does not. 

Mazur Instruments
PRM-7000 / 8000 / 9000
Comparison Matrix

  • Availability: In Stock
  • Model: PRM-8000

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