Ranger EXP with Pancake Probe by SE International - Geiger Counter

Personal Monitoring Datalogging
Geiger Counter Manufacturer: SE International
Ranger EXP with Pancake Probe by SE International - Geiger Counter
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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$175.00
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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

  • Operating Range: 0.001 (1 µR)—100 mR/hr, 0—350,000 CPM, 0.01—1000 µSv/hr, 0—5,000 CPS
  • Total/Timer: 1—9,999,000 counts
  • Alert Set Range: 0.001—100 mR/hr and 1—350,000 CPM. 70db @ 1m
  • Built-In Efficiencies: Sulfur (35S), Strontium (90Sr/y), Cesium (137Cs), Phosphorus (32P), Carbon (14C), Iodine (131I), Cobalt (60Co), and Alpha
  • Accuracy (Referenced to Cs137): ±15% from factory and ±10% with NIST Source Calibration

Kit Contents

Ranger EXP Geiger counter, pancake probe, probe cable, USB software flash drive, quick start guide, Ranger rubber case and Ranger soft case, stand for Ranger, wrist strap, USB cable.

Manufacturer Resources

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