• Radiation Alert® Frisker

    Easy to use, great general purpose radiation frisker for a wide array of applications. Ergonomic enclosure makes surveying people and objects a snap.

The Frisker / Digital Radiation Detector - a ß y x

The Radiation Frisker

Sick of getting tripped up by cables? Want that free hand back? Tired of lugging around a meter the size of a lunch box? Presenting The Radiation Alert® Frisker . A light weight, single-handed radiation contamination instrument that has been designed to meet the demands of today’s radiation personnel for leak testing, surface monitoring, sample screening, and personnel screening. By integrating the latest electronics with a proven and dependable Geiger-Mueller detector, S.E. International has created a rugged, ergonomic tool that addresses a number of radiological applications. The Radiation Frisker detects alpha, beta, and gamma with an assortment of units of measure, customizable alarm levels, and a backlit display. Radiation Frisker Quick Specs PDF


Halogen-quenched GM tube with thin mica end window. Mica window density 1.5-2.0 mg/cm2. Effective diameter of window is 45 mm (1.77 in.). Side wall is .012 inch thick.

Operating Range

µR/hr - 1 to 50,000
CPM - 0.0 to 175,000
nSv/hr - 1 to 500,000
CPS - 0.0 to 2500


Typically ±15% from factory. , ±10% (NIST).

Energy Sensitivity

Detects Alpha down to 2 MeV. Detects Beta down to .16 MeV; typical detection efficiency at 1 MeV is
approx. 25%. Detects Gamma down to 10 KeV through the detector window. 3600 CPM/mR/hr (137Cs). Smallest detectable level for 125I is .02 µCi at contact.


Readout will OVERRANGE in radiation fields as high as 100 times the maximum reading.


Pulsating beeper sounds the alert. Adjustable alert levels are used for µR/hr / CPM, and nSv/hr / CPS.
Energy Response Curve


Backlit liquid crystal display with mode indicators.

Count Light

Red LED flashes with each count.

Audio Indicator

Sounds with each count (can be switched off for silent operation)

Power Requirements

Two (2) AA alkaline batteries (included). Battery life is approx. 1000 hours at normal background radiation levels.

Temperature Range

-10° to +50°C (14° to 122°F)


217 g (7.7 oz.)

SizeTube Window

276 x 44 x 64 mm (10.88 x 1.75 x 2.5 in.)


Carrying Case, Lanyard, Batteries, and Protective Boot. Protective boot fits most industry standard dose rate and compensation filters.

Limited Warranty

1 year limited warranty


Operation Manuals (PDF) English Spanish French German | Quick Specs | Quick Start Video Guide | All Radiation Frisker FAQs

Frequently Asked Questions about The Frisker

What type of GM tube does The Frisker use for detection?

The Friker uses a "Pancake" style 2 inch GM detector (Shown Below)

Pancake Tube

How many data points can be stored in the internal memory of the Frisker?

The Frisker has no internal memory.

How do I power The Frisker?

The standard means is Two (2) AA Alkaline Batteries.

Accessories / Expand The Frisker Radiation Detector, Survey Meter, and Geiger Counter

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