Specification: Item Type: Nuclear Radiation Detector Material: ABS Product size: approx. 116 x 60 x 25mm/4.6 x 2.4 x 1.0in USB: 5V Language: Chinese and English Measurement range: 0.1uSV/h-10mSV/h Dose range: 0.00μSv - 10Sv Sensitivity: >1cps/μsv/h (under the condition of Co60 Source) Energy response: 48keV-1.5Mev Relative error: Features Built-in Memory: The portable geiger counter has built-in memory, and some data such as accumulated dose value, dose rate alarm threshold, and dose alarm threshold will not be lost after power failure. Power Mode: Giegermeter radiation detector has two power modes, which can be installed with 3 AAA batteries or Type-C power supply, button battery included: CR1220, and has dual alarm functions. Multi-screen display function: can arbitrarily adjust the alarm threshold, switch between Chinese and English, screen backlight, real-time dose curve display function, etc. Function settings: Geiger counter radiation detector can be set for sound, backlight, language, time and date, calibration factor, dose cleared. Wide Application: The nuclear radiation detector can be used in household radiation detection, radiation treatment enterprises, health and epidemic prevention, radiation therapy, nuclear laboratories and other scenarios.