Portable size: This handheld nuclear radiation detector is portable and easy to carry, so you can put it in your bag, carry it with you and grab it for use 0.96-inch TFT display: This nuclear radiation detector uses a 0.96-inch TFT color display, a multi-unit display, which allows you to easily and clearly read the detection data and get results in a timely manner Radiation Detection: This detector is used to measure X, gamma and beta radiation and is best suited for measuring small changes in radiation levels, with high sensitivity to the most commonly used nuclides. Detection is more accurate Easy to operate: The instrument uses a 90mm G-M counting tube, which has high flexibility and can measure environmental background. Supports measurement of instantaneous dose rate, cumulative dose and AVG dose Multifunctional design: The alarm value can be set by the user. When the limit value is exceeded, the alarm will sound and the alarm will be issued in time to ensure safe use. Triple alarm function of sound, flash and vibration Lithium-ion battery: Built-in 400mAh large-capacity rechargeable lithium-ion battery, low power consumption, supports repeated use, economical and practical Wide application: This radiation tester can be widely used in environmental monitoring of nuclear power plants, accelerators, steel industry, chemical industry, isotope applications, radiation laboratories and nuclear facilities Specification: Material: Plastic Battery: 1*3.7V, 400mAh lithium-ion battery (included) Detection rays: X, gamma, hard beta rays Display: 0.96 inch TFT color display Measuring range: 0.08-9999μSv/h Working environment: -10~50℃; ≤95% relative humidity Charging method: USB Type-C Item size: 100*40*25mm/3.94*1.57*0.98in