Observer USB Software Video Operation Manual Posted on May 8, 2018May 9, 2018 This is a quick start guide to get you going with the use of the Radiation Alert® Observer USB Software. The software was designed to work with your digital radiation detector. The following Survey Meter and Geiger Counter models are compatible: Current Models Ranger Ranger EXP Monitor 200 Monitor 1000EC Discontinued SEI Inspector USB SEI Inspector EXP USB Digilert 200 This is a quick start guide to get you going with the use of the Radiation Alert® Observer USB Software with S.E. International's Radiation Alert® Ranger, Ranger EXP, Monitor 200, Monitor 1000EC, SEI Inspector USB, SEI Inspector Xtreme USB, or Digilert 200 Survey Meters and Geiger Counter. The New Observer USB is a free version of the Observer software that runs on Windows®. It can be used with The Ranger, The Ranger EXP, The Monitor 200, & The Monitor 1000EC Radiation Detectors. The Observer USB reads in Counts, CPM, and CPS, as well as µR/hr, mR/hr, and µSv/hr and has the ability to collect, log, and perform statistical analysis on the data received.