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S.E. International

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Highlighted Products

Radiation Alert® Ranger

Radiation Alert Ranger®

The Ranger® offers maximum performance in a lightweight, rugged nuclear radiation detector for surveying at the facility or in the field. Though designed with industrial environments in mind, it still has all of the features you’ve come to love in the lab. The Ranger® is a small, handheld, digital survey meter that offers excellent sensitivity to low levels of alpha, beta, gamma, and x-rays. … Read More
Radiation Frisker

Radiation Alert® 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. The Radiation Frisker detects alpha, beta, gamma, and X-ray. It has the ability to take readings in multiple different units of measure, customize alarm levels, and comes equipped with a backlit display.  The Frisker is a light weight, single-handed radiation contamination instrument that has been designed to meet the demands of… Read More
AM-1X1 Radiation Area Monitor

AM-1x1 Radiation Area Monitor

The Radiation Alert® Area Monitor is one of the most user friendly, all inclusive, state of the art radiation area monitors available. The easy to use interface is an intelligent resistive touch screen display featuring a large five digit LED readout. … Read More


Calibration & Service

Calibration & Service

Our radiation detector calibration service offers a calibration reminder service, industry leading support, and speedy turnaround times. We recommend that your instrument be calibrated annually from the date it was placed in service. However, certain industries or applications may require them more frequently. …
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World Wide Distributors

Ionizing Radiation Basics

Ionizing Radiation Basics

Sometimes our instruments are purchased by individuals with no background in radiation protection. The presentation below will cover some of the basics for Ionizing Radiation, such as alpha, beta, gamma, and x-rays. Our Radiation Basics information is based on features that are available with most of our Radiation Alert®…

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Frequently Ask Questions
Operation Manuals
Operation Manuals
Video Quick Start Guides
Video Quick Start Guides
Calibration & Service
Calibration & Service
Ionizing Radiation Basics
Ionizing Radiation Basics
Contact Us


ASNT Annual Conference

ASNT Annual Conference

November 9, 2020 @ 8:00 am - November 12, 2020 @ 4:00 pm

Come see us at The virtual ASNT Annual Conference. It’s the largest, dedicated gathering of industry professionals, equipment and technology suppliers, engineers and researchers working in the field of nondestructive testing and evaluation of materials in the world.
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About us

About Us

Since 1979, S.E. International, Inc., has been developing and manufacturing under the Radiation Alert® product name. Our success began with the Monitor 4, a simple but reliable general-purpose survey meter. Our intention was to provide a great instrumentation at a cost that could fit most budgets. Safety is always at the forefront of our development. …
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National Museum of Civil Defence Appriciation Letter

Posted on June 15, 2020

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Who uses our instruments

Who Uses Our Instruments

Posted on May 6, 2020

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Area Monitor Training Video

Radiation Alert® Area Monitor Training Video by Direct Scientific

Posted on March 8, 2019

It is always nice when one of our customers complements our products by producing their own product training video.  Please check it out and let us know what you think. Area Monitor Training Video Read More


Judson Kenoyer, CHP, CIH

June 15, 2020

Monitor 4 …

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Neil Breslow

May 21, 2020

NDT Supply has been working with SE International since we started business in 2000. We have found them to be easy to work with, and a very reliable and responsive supplier. Questions and issues are always handled promptly and with a smile. Neil W. Breslow

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Chris Walters

May 11, 2020

We are happy to write a testimonial for your amazing company. We have dealt with SE Intl for probably 30 years or more. I have Never had an issue that you did not resolve with the utmost professionalism. The Customer service and product turnaround is as good or better than an ANY company we have ever dealt with. The products speak for themselves as e we have not had one return for faulty product. Thank you for your continued service and many years to come. Christine Walter

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