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S.E. International


NuCLEARANCE Portal Monitor

Radiological Risk Mitigation for Facilities

A scalable radiation solution to prevent radiation entering or leaving a facility.

Highlighted Products

Radiation Alert® Ranger

Radiation Alert Ranger®

Radiation Alert Ranger … Read More
Radiation Frisker

Radiation Alert® Frisker

Radiation Alert Frisker … Read More
AM-1X1 Radiation Area Monitor

AM-1x1 Radiation Area Monitor

AM-1X1 Radiation Area Monitor … Read More


Calibration & Service

Calibration & Service

S.e. International Offers Calibration & Services …
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World Wide Distributors

Ionizing Radiation Basics


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


Health Physics Society 69th Annual Meeting/2024 IRPA 16th International Congress

Health Physics Society 69th Annual Meeting/2024 IRPA 16th International Congress

July 7, 2024 @ 8:00 am - July 12, 2024 @ 5:00 pm

Rosen Shingle Creek - Orlando, FL. …
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2024 AAPM Annual Meeting

AAPM 65th Annual Meeting & Exhibition

July 21, 2024 @ 8:00 am - July 25, 2024 @ 5:00 pm

 AAPM supports its mission to advance the science, education and professional practice of medical physics by fostering the education and professional development of medical physicists at various meetings held throughout the year. …
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ASNT Annual Conference

ASNT Annual Conference

October 21, 2024 @ 8:00 am - October 24, 2024 @ 4:00 pm

Las Vegas, NV. Come see us at booth 816 at the 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

S.E. International, Inc develops and manufacture Radiation Alert® products and deliver results. …
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Radiation Alert Ranger

The Crucial Role of Staff Training in Radiation Detection: Unveiling the Radiation Alert® Ranger Advantage

Posted on September 25, 2023

In an era where technology plays a pivotal role in safeguarding our well-being, radiation detection is critical in ensuring safety across numerous industries. For radiation detection companies like S.E. International Inc, staying ahead of the technological curve is imperative for the mission of ensuring staff, clients, and visitors of any organization dealing with radiation are kept safe and healthy.  … Read More
Radiation Alert® products

The Importance of Radiation Detection at Universities and Research Institutions

Posted on August 23, 2023

The great English physicist Stephen Hawking once said, “Scientists have become the bearers of the torch of discovery in our quest for knowledge.” The meaning behind these inspirational words drives many scientists and researchers on a path of exploration.  … Read More
Radiation Detection Equipment

Why Your Business Needs Radiation Detection Equipment Calibration Service

Posted on July 25, 2023

In a robust world of diverse industries where safety and precision are paramount, radiation detection equipment plays a crucial role in companies maintaining high standards. From nuclear facilities and medical centers to research labs and industrial sites, the accurate measurement of radiation levels is vital for safeguarding human health, property, and the environment.   … Read More


Christopher Ulriksen, CSP, M.S.

December 9, 2022

Thank you Beth! To confirm, the source that the unit is calibrated to is Cs-127, correct? Thanks for the quick reply, this is wonderful customer service on a great product. I am really happy all around with SE and I will be sending the unit in for its annual in Q1. Happy Holidays to you all. Thank you,

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Michael @ Patriots Antiques

September 2, 2021

From time to time, we find customers who use our products in exciting and unique ways. Meet Michael at Patriots Antiques. Michael uses the Radiation Alert Ranger® to help detect uranium in antique glassware. Here are some great things he had to say about our instruments: …

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Zach Schroeder

July 26, 2021

We recently purchased a Radiation Alert Ranger to expand our radiation safety procedures. This was a timely purchase and when a supply issue at a distributor appeared to stop us in our tracks, Beth went out of her way to help us. Without even being asked, she was able to locate another vendor with stock and put us in contact with them for the purchase. Because of her excellent customer service, we were able to continue moving forward and avoid a sizeable project delay. The Ranger itself is a great addition to…

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