Thermo Scientific Owl® SM series isotope survey meters feature a thin-end detector for Beta radiation. These radiation measurement meters provide a standard scale within a KCPM range and read in both both CPM and REM. They also feature a counting range of 0.1X, 1X, 10X, and 100X and will provide external calibration plots. A built-in speaker, clip-on probe handle, and strain relief cable maximize ease of use. Each meter is factory calibrated to ensure accuracy. Radiation detection meters require two 'D' batteries, which will provide approximately 200 hours of use. CE Certified.