Features: Detects X-ray, Y-ray and beta rays. High sensitivity, can work in a variety of environments. Chinese and English bilingual interface is easy to use and operate. Shut down data storage. Liquid crystal display and Chinese character display function, the status display is clear at a glance. Light/vibration/sound 3 combinations alarm mode selection. Real-time clock display. Products can be preset dose rate and cumulative dose alarm threshold. Specification: Product Name: Nuclear Radiation Detector Size: 120x78x27mm Types of detection rays: Y-rays, X-rays, ?2-rays Detector: Energy compensation GMTube(Geiger counter meter) Equivalent dose rate: 0.00-1000uSv/h (10mSv/h) Cumulative equivalent dose: 0.00uSv-500.0mSv Energy range: 48keV-1.5Mev≤ ±30%(for 137Cs-) Language: Chinese/English switch Sensitivity: 80 CPM/uSv (for Co-60) Dosing unit: Sv/h,uGy/h,mR/h,cps,cpm Switch Battery Capacity: 1100mAh lithium battery Alarm Method: Light, Vibration, Sound Material: ABS+Silicone Display: LCD Battery: 1 * Built-in 1100mAh rechargeable lithium battery (included) Sensors: Geiger-Müller counter tube Radiation detection: X-ray, β and y rays Item Size: 120 * 78 * 27mm / 4.72 * 3.07 * 1.06in Package Size: 198 * 112 * 42mm / 7.80 * 4.41 * 1.65in Package Weight: 245g / 9.64oz Packing List: 1 * Nuclear Radiation Detector 1 * Cable 1 * Manual Your satisfaction is our eternal pursuit