Radiation Detectors, Geiger Counters, Gamma Spectrum Analyzers

Since 1979, our Radiation Alert® nuclear radiation detectors have proven ideal for a wide range of applications. As the manufacturer of our instruments, we have engineered them to be reliable, simple to use, and affordably priced. S.E. International is dedicated to helping our customers. We promise to help you find the appropriate instrument for your needs. Our continuing development reflects our commitment to meet the ever-increasing and changing needs of our customers and the industry at large. Check out the latest in our line of nuclear radiation detectors, radiation dosimeters, radiation spectrum analyzers, and accessories.


The 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 ...
Ranger EXP Enxternal Probe Geiger Counter

Ranger EXP

The Ranger EXP is a maximum performance, lightweight, rugged nuclear radiation detector to use for surveys in the field or ...
Monitor 200

Monitor 200

The Monitor 200 measures alpha, beta, gamma, and x-rays. Its digital display shows readings in your choice of CPM, CPS, ...
Monitor 1000ec Energy Compensated Detector

Monitor 1000EC

The Monitor 1000EC is an energy compensated radiation detector that measures gamma, and x-rays. Perfect for most applications requiring an ...
Monitor 4 Analog Radiation Detector

Monitor 4

The Monitor 4 is compact, analog radiation detector. A general purpose survey meter capable of detecting alpha, beta, gamma, and ...
Monitor 4EC

Monitor 4EC

The Monitor 4EC is an energy compensated, ergonomic radiation survey meter capable of detecting alpha, beta, gamma, and x-rays over ...
Monitor MC1K

Monitor MC1K

The new ergonomic MC1K is a handheld survey meter using a built-in energy compensated GM detector. It detects gamma and ...
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 ...
AM-2X2 Radiation Area Monitor

AM-2X2 Radiation Area Monitor

The Radiation Alert® Area Monitor is one of the most user friendly, all inclusive, state of the art radiation area ...
AM-7128 Radiation Area Monitor

AM-7128 Radiation Area Monitor

The Radiation Alert® Area Monitor is one of the most user friendly, all inclusive, state of the art radiation area ...
AM-71313 Radiation Area Monitor

AM-71313 Radiation Area Monitor

The Radiation Alert® Area Monitor is one of the most user friendly, all inclusive, state of the art radiation area ...
AM-7149 Radiation Area Monitor

AM-7149 Radiation Area Monitor

The Radiation Alert® Area Monitor is one of the most user friendly, all inclusive, state of the art radiation area ...
Sentry EC Radiation Dosimeter & Exposure Rate Meter

Sentry EC Dosimeter & Ratemeter

The Radiation Alert® Sentry EC is a Personal Alarming Radiation Dosimeter & Rate Meter. This model is designed to ensure ...
Rad-60 Alarming Dosimeter

Rad-60 Alarming Dosimeter

The RAD-60 is a Personal Alarming Radiation Dosimeter. It's a precise and reliable instrument for ensuring the personal safety of ...
Pen Radiation Dosimeters

Pen Dosimeters

The advanced PENs are direct reading radiation dosimeters. They are rugged, precision instruments with a higher quality and reliability than ...
radiation dosimeter charger

Pen Dosimeter Charger

The patented, handheld Dosimeter Charger works with a variety of direct-reading dosimeters by simply squeezing the lever of a generator ...
URSA-II - Universal Radiation Spectrum Analyzer

URSA-II – Universal Radiation Spectrum Analyzer

The URSA II, with a full-featured MCA program, can be used with practically any radiation detector and can extract any ...
GammaPAL - Portable Radiation Analysis Laboratory

GammaPAL – Portable Radiation Analysis Laboratory

The GammaPAL is your all-in-one sampling kit for radiation safety, the ideal instrument for detecting contamination in food, soil, and ...
Observer USB Software

Radiation Alert® Observer USB Software

The New Observer USB Software is a free version of the Observer Software that runs on Windows®. The Observer USB ...
Observer BLE App for Android OS

Radiation Alert® Observer BLE App

The New Observer BLE is a free Bluetooth app that runs on AndroidOS. It can be used with The Ranger, ...
sentrycom software for sentryec

Radiation Alert® SentryCom Software

The Windows™ based SentryCom Software is a free companion software for the Sentry EC. The Sentry Software enables you to ...
radiation area monitor software

Radiation Alert® Area Monitor Server Software

The Area Monitor Server Software enables users to remotely monitor and configure their  Radiation Alert® Area Monitors via USB or ...
ACS Express Software - Rad-60 Dosimeter Software

ACS Express Software – Rad-60 Dosimeter Software

ACS Express is state of the art software for keeping accurate dose records during an event. It provides a Windows-based ...
URSA_II_mca_software

URSA-II MCA Software – Multi-Channel Spectrum Radiation Analyzer Software

The  URSA-II MCA Software has been designed taking into account feedback and requests from our customers. Customers can identify, analyze, ...

Nuclear Radiation Detectors, Geiger Counters, Spectrum Analysers