Specification: Item Type: Geiger Counter Material: ABS, LED Weight: approx. 169 g/6.0 oz. Energy Range: 20kev-3.0Mev≤±30%(137Cs-) Sensitivity: 80cpm/usv/(Co-60) Test accuracy: 0.01μsv/h Time range: 0-99.99µsv/h Time error: <10% Average error: <3% Power supply: 2 x AA batteries (batteries not included). Detection type: βγ and detectable X-rays Scope of application: nuclear radiation detection Package list: 1 x Geiger meter (battery not included). 1 x Manual Features High Quality Material The Geiger meter is made of high quality ABS material, which is sturdy and durable to ensure long-term use. MULTI DISPLAY: The screen displays temperature and humidity conditions at the same time, providing more information at the same time. MULTIFUNCTIONAL: The nuclear radiation detector has functions of visualization, backup and data output. Meet the needs of various work scenarios. EASY TO READ: The radioactive detector can be digitally displayed and equipped with a backlight for easy reading. PORTABLE DESIGN: The compact Geiger counter allows you to put it in your pocket and carry it with you, simple, clear, user-friendly user interface.