Radiation Alert® Support / SEI Inspector, M4, M4EC, SentryEC, URSA-II, & GammaPAL


Support Links

Thank you for choosing a Radiation Alert® detector from S.E. International, Inc. Below you will find a number of helpful links, discussions, and videos to assist you in the use of your instrument.

Operation Manuals | Instrument Comparison | Radiation Basics | Discussion | FAQs

Quick Start Videos

  • SEI Inspector USB Chapter 1: Introduction
  • Digilert200 Introduction
  • Radiation Frisker Introduction
  • Observer USB Basics
  • GammaPAL Introduction
  • YouTube Channel
  • Monitor 4, Monitor 4EC, and MC1K

Ionizing Radiation Basics

Radiation Symbol Since our instruments are sometimes purchased by individuals with no background in radiation protection, we thought it would be helpful to include this information. The following information is based on features that are available with most of our Radiation Alert® meters.

Ionizing Radiation Basics

Join The Discussion

We have Facebook and Google+ Comments below. If you're not a subscriber, then you can also contact us directly via email or phone and our support staff will be happy to assist you in the use of your instruments.

Talk With Tech Support Via Facebook / refresh comments


If a Technical Support person is not available to assist you, Technical Support Questions are usually answered within 24 hours of being posted here.

Posted by S.E. International, Inc. on Wednesday, June 10, 2015