Feature: 1. [Low Power Consumption] Using 16 bit high speed embedded microprocessor as data processing unit, ultra low power consumption design effectively prolongs battery life. 2. [High Efficiency] The high efficiency GM counting detector is used to monitor the dose rate of X and radiation, so you can use it with confidence. 3. [Large LCD] Controlled by single chip microcomputer, dot matrix large screen LCD display, clear reading, easy to operate, ultra low power consumption design, unit display Sv/h, mR/h. 4. [Multifunctional] Efficient GM tube detector, the sound frequency indicates the radioactive strength, and the dose rate alarm threshold can be set. 5. [Alarm] Over threshold alarm, blocking alarm, battery failure alarm, can store 400 groups of historical data, scale and numbers indicate radiation strength at the same time. Specification: Item Type: Nuclear Radiation Detector Material: ABS Product Size: Approx. 20.5 x 10 x 3.5 cm / 8.1 x 3.9 x 1.4 in Power Supply: 3 x AA batteries or rechargeable batteries (Battery Not Included) Measuring Range: Count rate 0-500000 CPM, 0-8000 CPS Dose Rate: 0.01-1000usv/h, 0.01-1000mR/h Detector: GM counter tube detector Energy Range: 40KeV~3MeV Sensitive: 3000 CPM/mR/h Instrument Background: Counts per minute 120CPM Relative Basic Error: 15% Power Consumption: The whole current 20mA Temperature Range: -15~50 Humidity: Relative humidity 90% (40 ) Radiation Monitoring: It is an ideal instrument field for environmental laboratories, nuclear medicine, molecular biology, radiochemistry, nuclear material transportation, storage and inspection. Application: Unknown area rays inspection, environmental laboratory, environmental pollution investigation, nuclear medicine, meristem biology, radiochemistry, imports and exports commodity inspection, indoor environment and building materials radioactivity testing, irradiation processing, non destructive testing sites, nuclear safety emergency Weight: Approx. 1060g / 37.4ozNote: Compliance with refers to gamma rays. Package List: 1 x Nuclear Radiation Detector (Battery Not Included)1 x Storage Box1 x English Manual Note: 1. Keep dry during storage and use. Excessive humidity will damage the instrument.2. Do not drop, knock or vibrate violently, otherwise the detector will be damaged.3. If it is not used for a long time, please remove the battery.4. If the instrument cannot work normally, please send it to a professional repair shop for repair