SE International

Since 1979 RADIATION ALERT®instruments have proven ideal for a wide range of applications. SE Internatioal has engineered them to be reliable, simple to use and understand, and affordably priced. We're dedicated to our customers and promise to help you find the appropriate instrument for your needs.


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Monitor 200 / Radiation Alert (Formerly The Digilert 200) - a ß y x

(Includes,rubber boot,stand,USB cable,Observer software, batteries)

Monitor 4 - Handheld Radiation Alert Detector

The M4 and M4EC are compact, ergonomic, general purpose survey meters capable of detecting alpha, beta, gamma, and x-rays over 3 selectable ranges

PEN200mR - Pen Dosimeter

The advanced PEN direct reading dosimeters are rugged, precision instruments They are higher quality and have greater reliability than other dosimeters of this type

RAD-60 - Personal Alarming Dosimeter and Rate Meter

The RADOS RAD-60 Personal Alarm Dosimeter is a precise and reliable instrument for ensuring the personal safety of the user Ideally, the RAD-60 is used in everyday radiation monitoring, in stand-alone conditions

Ranger - Radiation Alert® Ranger

The Ranger features built in isotope efficiencies, download your data from the internal memory, great sensitivity, backlit display, timer and an optional wipe test plate for swipes.


(RANGER with external pancake probe and cable) Batteries included

RAP Scintillation Probe / CsI (Tl) - Cesium Iodide Thallium

Radiation Alert® Scintillation Probes Cesium Iodide Thallium probes available at various energy sensitivities.

Sentry EC Personal Alarming Dosimeter and Rate Meter

The Radiation Alert Sentry EC is a Personal Alarming Dosimeter / Ratemeter designed to ensure the safety of personnel that work in occupations with potential x-ray or gamma exposure

The Frisker - Digital Radiation Detector - a ß y x

(batteries included) 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.

URSAII - 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 data your detector can supply!

MC1K - Handheld Radiation AlertDetector

MC1K is a handheld survey meter using a built-in energy compensated GM detector It detects gamma and x-rays up to 1000 mR/hr over 4 selectable ranges

Mini Rad-V - Vehicle Mounted Radiation Monitor

The Mini Rad-V will give the occupants of the vehicle an instantaneous alarm (< 1 second) when the radiological conditions minimally exceed normal background levels

Observer USB Software / Ranger, Ranger EXP, and Monitor 200 - a ß y x

The serial version of the Observer software runs on a Windows platform and can be used with the Inspector, Digilert 100, and Monitor 4 & 4EC Radiation Detectors