Feature A small body has a great effect, and it can be easily measured with just one press of the power on button. The operation is simple and sensitive, ensuring the accuracy of the measurement results. TFT high-definition display screen, multiple alarm reminders, multiple unit displays, real-time data viewing, support for eight languages such as Chinese/Korean, and can be freely switched. Over limit alarm reminders, timely alarms to ensure safety. Ultra long range to meet various usage scenarios specifications Detection and counting 90mm Geiger counter tube Measurement range: 0.01uSv9999uSv Working environment -2050 Battery capacity 250mah Charging method USB-type-c Product size 100 * 40 * 25MM Body material ABS Screen size 0.96 inch TFT color screen Packaging includes 1 * Detector 1 * Instructions 1 * Charging cable