Ranger EXP with Pancake Probe by SE International - Geiger Counter
Ranger EXP with Pancake Probe by SE International - Geiger Counter
The SE International Ranger EXP builds on the standard Ranger with an external pancake probe for broader-area sensitivity in tough field environments. It detects alpha, beta, gamma, and X-ray radiation with a digital readout, red light indicator, silenceable audible beeper, adjustable alert threshold, and built-in timer. Observer USB Software supports data logging, computer alarms, and calibration. Operating range covers 0.001–100 mR/hr, 0–350,000 CPM, 0.01–1000 µSv/hr, and 0–5,000 CPS, with ±10% accuracy referenced to Cs-137 (NIST calibrated). Ideal for surface contamination surveys, environmental screening, and field radiation monitoring.
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Rent for flexible short-term use or purchase to own
Rental Rates
Daily
$60.00
Weekly
$175.00
Monthly
Contact for pricing
Reference rates only. You get the best rate calculation - actual price based on your selected rental dates.
What is the Radiation Alert Ranger EXP with Pancake Probe used for?
It's a portable Geiger-Müller survey meter for detecting alpha, beta, gamma, and X-ray radiation. Common uses include health physics surveys, surface contamination checks, radiation work area monitoring, and field verification of radiological boundaries.
What radiation types does the pancake probe detect?
The GM end-window pancake probe detects alpha particles (when held close to the surface), beta particles, gamma radiation, and X-rays. Alpha detection requires close proximity since alpha particles have limited range in air.
Ranger EXP vs. standard Ranger — what's the difference?
The Ranger EXP offers an extended measurement range compared to the standard Ranger — relevant when surveying near higher-activity sources where the standard range may be exceeded. For routine contamination surveys and low-to-mid activity area monitoring, both instruments cover most use cases.
Pancake probe vs. NaI scintillation detector — when should I use each?
Use the pancake probe for surface contamination surveys and portable beta/gamma checks where detecting surface activity matters. Use a NaI scintillator when you need higher sensitivity to low-level gamma radiation at ambient dose rates or when energy discrimination is needed.
What should I confirm before deploying for a radiation survey?
Confirm the radiation type and energy range expected at your site, whether surface contamination or area dose rate measurement is the objective, and that the instrument's measurement range is appropriate for expected activity levels.
What does it cost to rent the Ranger EXP with Pancake Probe?
Contact RAECO Rents for current daily and weekly rates. For radiation surveys covering multiple areas or multiple days of characterization work, contact us for a project quote.
Exposure Hazards This Equipment Detects
Beta Particles (β)
CAS:
N/A
Learn More
Updated on March 09, 2026
PEL TWA
N/A
REL TWA
N/A
TLV TWA
N/A
Gamma Rays (γ)
CAS:
N/A
Learn More
Updated on March 09, 2026
PEL TWA
N/A
REL TWA
N/A
TLV TWA
N/A
Alpha Particles (α)
CAS:
N/A
Learn More
Updated on March 09, 2026
PEL TWA
N/A
REL TWA
N/A
TLV TWA
N/A
Features & Capabilities
| Calibration Certificate Available: | ✓ Yes |
| Datalogging: | ✓ Yes |
| Monitoring Scope: | Personal Monitoring, Area Monitoring |
Equipment Specifications
| Detection Method / Sensor Type: | External pancake probe on a flexible lead, giving a larger detection window than the standard Ranger's internal detector for faster broad-area surface scanning |
| Target Parameter / Analyte: | Alpha, beta, gamma and X-ray radiation |
| Grade Library: | Built-in isotope efficiencies for sulfur-35, strontium-90/yttrium, cesium-137, phosphorus-32, carbon-14, iodine-131, cobalt-60 and alpha |
| Measurement Range: | 0.001 mR/hr (1 µR) to 100 mR/hr; 0 to 350,000 CPM; 0.01 to 1,000 µSv/hr; 0 to 5,000 CPS |
| Accuracy: | ±15% referenced to Cs-137 from the factory; ±10% with NIST source calibration. RAECO Rents units ship NIST calibrated |
| Alarm Setpoints: | Adjustable alert threshold across 0.001 to 100 mR/hr and 1 to 350,000 CPM |
| Alarm Features: | Silenceable audible beeper rated 70 dB at 1 m, plus red light indicator |
| Calibration Standard: | Referenced to Cesium-137 (Cs-137), NIST source calibration |
| Connectivity: | Observer USB software for data logging, computer alarms and calibration — included free with the rental |
| Parameters Displayed: | Digital readout with red light indicator; total count and timer from 1 to 9,999,000 counts |
| Intended Use: | Surface contamination surveys, environmental screening and field radiation monitoring |
| Variants Available: | The standard Ranger uses an internal detector in the same housing, with identical ranges and accuracy. Choose the EXP when survey speed over larger surfaces matters, or the standard Ranger for a single-piece handheld with nothing tethered |
Kit Contents
Manufacturer Resources
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