Feature 1Real Time Measurement: The dose rate is measured in real time, and the cumulative dose is recorded at the same time. The dose rate alarm threshold and dose alarm threshold can be set arbitrarily (continuously adjustable). You can view the start time of the current dose accumulation. 2Statistical Measurement Function: Statistical time can be set arbitrarily between 00 and 99 hours. With dose rate and dose dual alarm function. The two alarm modes of sound and flash can be combined arbitrarily to meet various alarm needs. 3Fault Prompt Function: With sensor fault prompt function (display shows "////GMBad"). When the radiation dose rate exceeds 10 mSv/h, it has the function of blocking warning (999Sv/h is displayed on the display). 4Data Export Function: Built in memory, the accumulated dose value, dose rate alarm threshold and dose alarm threshold data will not be lost after power failure. With a calendar clock function, the clock can also be guaranteed to run normally after the machine is turned off. With data export function, equipped with USB interface, it is convenient to connect with computer, and the dose data can be read, analyzed and managed by dose management system software. 5User Friendly Design: Easy operation, continuous monitoring of battery power, and a low power status prompt. Chinese and English menus can be switched freely. LCD backlight can be switched.Item Type: Radiation DetectorProduct Material: ABSDetector: Energy Compensation Type GM Counter TubeMeasuring Range: Dose Rate: 0.00Sv/h ~ 10mSv/hDosage: 0.00Sv ~ 999.9SvDose: 0.00Sv ~ 999.9SvSensitivity: >1.5cps/Sv/h (Relative To 137Cs)Energy Response: 48keV ~ 3.0MeVRelative Error: <5% (at 1mSv/h)Battery Model: 2 x AAA Batteries (Battery Not Included)Power Consumption: <24mWPower Dissipation: <24mWTemperature Characteristics: -10+5010% Package List: 1 x Radiation Detector1 x Data Cable1 x Screwdriver