Monitor 200 Quick Start Video Posted on February 9, 2019February 15, 2019 This video will get you started with the use of your Radiation Alert® Monitor 200. Watch this quick start video guide to run through the menu and the general settings and features of your radiation detector. With the exception of the built in efficiencies, this video is also applicable to the Monitor 1000EC and Ranger models as well, as they all have the same basic, simple to use interface. Welcome to the Radiation Alert quick start guide for the Monitor 200 radiation detector. The Monitor 200 is an ionizing radiation detector that detects Alpha, Beta, Gamma, and X Ray. Detector has a half inch end window on the top, located above the LCD. The Radiation Alert Line of Geiger Counters and Radiation Detectors by S.E. International. Instructional videos and reviews.