Portable Handheld monitor Dosimeter with Geiger Counter for Stone Industry Description: [Application]: Geiger counter nuclear tester, fast response time and high accuracy, capable of detecting Y and X band. [Function]: Personal dosimeter with OLED display, convenient for observation and easy to read. [Alarm]: Monitor manual with sound, flash alarm, accurate measurement, stable operation. [Portable]: The Geiger counter dosimeter is lightweight, compact, easy and convenient to carry indoors outdoors. [Wide Application]: The nuclear tester is suitable for DIY, geological research, iron, inspection vehicles, nuclear power plants, industry. Specification: Measuring range: 0,05usV~50msv Measurement accuracy: -17%~ 25% Operating environment: temperature -20°C-50°C; humidity < 95% RH, non-condensing; Size Chart: 108mm x 15.3mm / 4.25in x 0.60in The package includes: 1x Geiger counter 1x cable USB 1x Instruction Manual