This nuclear radiation detector has a portable portable design for easy portability and storage. the user interface is simple and clear, easy to use. Testing anywhere is very convenient and fast.BR‑6 Geiger counter Easy-to-read multifunctional radioactive detector for nuclear radiation Electromagnetic radiation Specification: Item Type: Geiger Counter Material: ABS, LED Weight: approx. 169g/6.0oz Energy Range: 20kev-3.0Mev≤±30%（137Cs-） Sensitivity: 80cpm/usv/(Co-60) Test accuracy: 0.01μsv/h Time range: 0-99.99 µsv/h Time error: < 10% Average error: < 3% Power supply: 2 AA batteries (shipped without batteries) Detection type: β γ and X-ray detectable Scope of application: detection of nuclear radiation Package List: 1 Geiger counter (battery not included) 1 manual Features EASY TO READ: The radioactive detector can be displayed digitally and equipped with a backlight for easy reading. HIGH-QUALITY MATERIAL: Geiger counter is made of high-quality ABS material, which is sturdy and durable to ensure long-term use. PORTABLE DESIGN: Compact Geiger counter allows you to put it in your pocket and carry it with you, simple, clear user interface, easy to use. MULTIFUNCTIONAL: The nuclear radiation detector has data display, save and output functions. Meet the needs of various work scenarios. MULTI DISPLAY: The screen simultaneously displays the conditions of temperature and humidity, providing more information at the same time.