Handheld Alpha, Beta, Gamma, X-Ray Detection for Contamination Surveys
The PRM-9000 Geiger Counter is a high-performance nuclear radiation detector and radiation monitor, featuring a two-inch (50.8 mm) pancake detector tube—the gold standard for radiation surveys. This Geiger counter excels at detecting potentially harmful ionizing radiation levels and identifying radioactive contamination on packages, equipment, people, and surfaces.
As a versatile nuclear radiation detector, the PRM-9000 is perfect for regulatory inspections and monitoring low-energy radionuclides, including Naturally Occurring Radioactive Material (NORM). Its exceptional sensitivity and advanced features make it a standout radiation monitor, offering one of the best price-to-performance ratios in the industry.
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A Reliable Geiger Counter for All Users
Proudly made in the USA, the PRM-9000 nuclear radiation detector is accurate and dependable, serving as an ideal radiation monitoring solution for individuals, health physics professionals, educators, researchers, outdoor enthusiasts, and rock collectors. This Geiger counter meets diverse needs with precision and ease.
Unmatched 24/7 Monitoring Capability
Designed for continuous environmental assessment, the PRM-9000 radiation monitor collects measurements and statistics around the clock—a feature rare among similarly priced Geiger counters. With a single key, users can navigate screens displaying real-time, average, maximum, and minimum radiation levels in µR/hr, mR/hr, µSv/hr, Counts per Second (CPS), or Counts per Minute (CPM).
Unlike traditional Geiger counters, this nuclear radiation detector logs the maximum radiation level along with the exact time and date it occurred, eliminating the need to constantly watch the device—a game-changer for effective radiation monitoring.
Industry-Leading Battery Life for Your Radiation Monitor
The PRM-9000 Geiger counter and nuclear radiation detector boasts a battery life of over 4.5 years under normal use, powered by a single, user-replaceable 9-volt lithium battery—no soldering required. Opt for standard alkaline 9-volt batteries, available anywhere, and still enjoy over 2 years of reliable operation with this efficient radiation monitor.
Data Logging and Connectivity in a Geiger Counter
With over 100K bytes of internal memory, this nuclear radiation detector autonomously stores up to 91,466 minutes or hours of time-stamped radiation data—no PC needed during collection. Later, transfer these measurements to a PC in CSV format for analysis. The PRM-9000 radiation monitor also features a user-settable dose-rate alarm, delivering an audible alert when radiation exceeds your chosen threshold.
A Made-in-the-USA Radiation Monitoring Solution
Crafted by Mazur Instruments and manufactured in the USA, the PRM-9000 Geiger counter and nuclear radiation detector offers robust I/O options, including support for headphones, external speakers, external power, and USB data exchange (requires an optional 3.5mm to USB adapter cable). This radiation monitor combines cutting-edge technology with American-made quality.
PRM-9000 General Purpose Geiger Counter
Specifications
Battery Life1 | |
| Standard 9V Lithium | 42,850 Hours / 4.89 Years |
| Standard 9V Alkaline | 20,150 Hours / 2.30 Years (included) |
Measurement Front End | |
| Detector | LND 7317 Pancake Geiger-Muller tube, Halogen-quenched with mica window and 45mm (1.75 inch) effective diameter |
| Radiation Detected | alpha, beta, gamma and x-radiation |
| Energy Sensitivity | alpha: minimum 2.0 MeV beta: minimum 0.16 MeV with 25% efficiency at 1 MeV gamma/X rays: min 10 keV (window) gamma sensitivity: 3,500 CPM/mR/hr calibrated to Cesium-137 (Cs137) |
| Accuracy | ±10% Typical, ±15% Maximum |
| Measurement Ranges | 0.001 to 125 mR/hr 0.01 to 1,250 uSv/hr 1 to 125,000 uR/hr 1 to 437,500 CPM (3,500 CPM/mR/hr) 0 to 7,291 CPS (58.33 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 (3,500 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 | 368 grams (13 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. |
Warranty | |
| One Year (120 Days on GM Tube) |
Notes:
- Assuming that background radiation is less than 85 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.
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