Authorised Indian Distributor
Saxsons Group
New Delhi, India · Since 1997
Ranger Radiation Survey MeterHandheld α / β / γ / X-Ray Pancake GM Survey Meter
Handheld halogen-quenched pancake-GM survey meter with thin mica window — alpha, beta, gamma and X-ray detection from 10 keV up. Sensitivity 3,340 CPM per mR/hr referenced to Cs-137. USB data logging (Windows Observer software), optional Bluetooth to Android. The survey instrument for routine contamination checks, NORM screening and regulatory inspection work.
Key Features
- Halogen-quenched, uncompensated pancake GM tube with thin mica window (1.4–2.0 mg/cm² areal density)
- Detects alpha (≥ 2 MeV), beta (≥ 0.16 MeV), gamma and X-rays (≥ 10 keV) through the detector window
- Sensitivity 3,340 CPM per mR/hr referenced to Cs-137 — the standard calibration isotope for handheld survey meters
- Dose-rate ranges: 0.001 to 100 mR/hr; 0.01 to 1,000 µSv/hr; 0 to 350,000 CPM; 0 to 5,000 CPS
- Timed counts and total counts up to 9,999,999 — supports wipe-test counting and timed-survey workflows
All Features
- Halogen-quenched, uncompensated pancake GM tube with thin mica window (1.4–2.0 mg/cm² areal density)
- Detects alpha (≥ 2 MeV), beta (≥ 0.16 MeV), gamma and X-rays (≥ 10 keV) through the detector window
- Sensitivity 3,340 CPM per mR/hr referenced to Cs-137 — the standard calibration isotope for handheld survey meters
- Dose-rate ranges: 0.001 to 100 mR/hr; 0.01 to 1,000 µSv/hr; 0 to 350,000 CPM; 0 to 5,000 CPS
- Timed counts and total counts up to 9,999,999 — supports wipe-test counting and timed-survey workflows
- Mini-USB cable included; free Windows Observer USB software for data logging, trending, export
- Optional Bluetooth module + Android Observer BLE app — wireless survey + live mapping on a phone
- USB power OR two AA alkaline batteries (included); approximately 800 hours at background levels
- Compact handheld form factor for one-hand survey use
- NIST-traceable Cs-137 calibration with each unit; calibration certificate supplied
- Designed for NORM survey, scrap-metal screening, wipe counting, contamination surveys, regulatory inspection
- AERB-compliant deployment paperwork supplied; suitable for hospital radiation-safety programmes
Technical Specifications
| Detector | Halogen-quenched uncompensated pancake GM tube; mica window 1.4–2.0 mg/cm² |
| Radiation coverage | Alpha ≥ 2 MeV · Beta ≥ 0.16 MeV · Gamma and X-rays ≥ 10 keV |
| Sensitivity | 3,340 CPM per mR/hr (Cs-137 reference) |
| Dose-rate range | 0.001 to 100 mR/hr · 0.01 to 1,000 µSv/hr |
| Count-rate range | 0 to 350,000 CPM · 0 to 5,000 CPS |
| Timer / totals | Timed and total counts up to 9,999,999 |
| Power | USB OR 2 × AA alkaline (included); ≈ 800 h at background |
| PC connectivity | Mini-USB; free Windows Observer USB software |
| Wireless option | Optional Bluetooth module + Android Observer BLE app |
| Calibration | NIST-traceable Cs-137 calibration; certificate supplied |
| Compliance framework | AERB radiation-safety officer survey instrument expectations |
Applications
The pancake-GM workhorse for routine contamination and dose-rate surveys
Hot-lab daily contamination survey
Morning bench survey before the first dispensing run; afternoon-shift wipe counts; routine clean-room surface check. The pancake window picks up the low-energy beta emitters that a closed-tube probe misses.
NORM screening
Naturally Occurring Radioactive Materials surveys at customs, scrap metal yards and bulk material handling. The 10 keV photon threshold catches the U / Th decay products NORM monitoring expects.
Wipe-test counting
Timed wipe-test counts on sealed-source surveillance wipes for AERB-licensed sources. The 9.99-million-count totaliser supports the long count times low-activity wipes need.
Regulatory inspection work
AERB / state radiation-safety officers running facility inspections carry a Ranger for spot dose-rate readings, contamination checks and source-leak verification. The handheld form factor + USB log meet the inspection-paperwork demand.
Theranostic patient release
Lu-177 / I-131 patient discharge surveys — verify dose-rate at 1 m from the patient and at the room surface before release. The 1,000 µSv/hr ceiling covers the patient-discharge regime.
Scrap-metal and waste screening
Cyclotron / hot-lab waste characterisation before AERB-compliant disposal. The Ranger reads each container before it leaves the facility, with a USB-logged result that feeds the waste manifest.
Why Ranger Radiation Survey Meter?
The thin mica window admits photons down to 10 keV — that catches I-125 (35 keV), Tl-201 (70 keV) and the U / Th X-ray complex that NORM screening needs. A closed-tube survey meter that stops at 50–80 keV walks past those isotopes entirely.
Every reading streams to the Windows Observer software via mini-USB — date, time, location (manual or GPS-tagged), and the count or dose-rate value. The AERB inspection log is built from data, not from operator handwriting in a survey notebook.
800 hours on two AAs at background levels means the meter lives in the hot-lab bench drawer with no charging schedule. The radiation safety officer picks it up, surveys, drops it back. The instrument is available when the survey is needed.
Catalogs & Resources
Manufacturer product page. Contact Saxsons for AERB documentation, calibration scheduling and India pricing.
Ranger Survey Meter
More for this product
Each card opens a focused post for a specific specialty — peer-reviewed evidence and clinical workflow, written for the persona you select.
The handheld survey meter for routine radiation-safety work
Contact Saxsons Group for Ranger survey meter supply, NIST-traceable calibration scheduling, AERB compliance paperwork and India training support.