Specification: Item Type: Nuclear Radiation Detector Material: ABS Product size: approx. 116 x 60 x 25 mm/4.6 x 2.4 x 1.0 inches. USB: 5 V. Language: Chinese and English Measuring range: 0.1uSV/h-10mSV/h Dose range: 0.00μSv - 10Sv Sensitivity: >1cps/μsv/h (under condition Source Co60) Energy response: 48keV-1,5Mev Relative error: <10% (at 1mSv/h) Power supply: 3 x AAA batteries (batteries not included), or Type C power supply Power consumption: <150mW Temperature characteristics: -10°C to +50°C Package list: 1 x Nuclear Radiation Detector 1 x English user manual. 1 x USB Cable 1 x Phillips screwdriver. Small note: Battery not included. Features Power Mode The Giegermeter radiation detector has two power modes, which can be installed with 3 AAA batteries or type c power supply, and has two alarm functions. Multi-screen display function: can arbitrarily set the alarm threshold, switch between Chinese and English, screen backlight, real-time dose rate curve display function, etc. Wide Application The nuclear radiation detector can be used in home improvement radiation detection, irradiation treatment enterprises, health and epidemic prevention, radiation therapy, nuclear laboratories and other scenarios. Built-in Memory The portable Geiger meter 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 a power failure. Function Parameters: Geiger meter radiation detector can be set for sound, backlight, language, time and date, calibration factor, clear dose.