Features 1、LIVING ENVIRONMENT: Radiation from daily life, imported products, marble, ceramic tiles, minerals, negative ion products, and other scenes. 2、MEDICAL ENVIRONMENT: Radiology, CT, CR, DR, blood irradiation equipment, radioactive nuclides, drug iodine 131, and other scenes. 3、INDUSTRIAL ENVIRONMENTS: Nuclear power plants, laboratory environmental assessments, waste metals, and nuclear radiation in industrial environments. 4、INDIVIDUAL PROTECTION: Occupational health. Health of regulatory, customs, pregnant women, and other personnel (travel, occupational health, regulatory personnel) 5、SENSITIVE COUNTER TUBE SENSOR: Adopting premium counter tube sensors, the effective detection area is larger and wider than similar instruments in the market. 6、MULTIPLE ALARM METHODS: Flashing light alarm and audible alarm, with the user setting the alarm value (factory set to 4 μSv）. 7、LCD DISPLAY: Equipped with a HD 4 digit LCD large screen display, switching between 5 international measurement units. Specification Item Type: Geiger Counter Material: ABS Power Supply Method: 1 x 6F22 9V dry battery 680mAh (built in carrying) Ray Type: α, β, γ And X rays Detector Type: Geiger counter tube (diameter 1.75 inches 45mm) Measurement Range: 0.001 to 100mR/h, 0.01 to 1000 μSv/h, 0 to 300000CPM, 0 to 5000CPS, 0 to 9999X Total Energy Range: 00KeV to 3MeV Measurement Accuracy: ± 15% Measurement Unit: μ Sv/h, mR/h, CPS, CPM, Total, HDLD, alarm value, battery level Alarm Value Function: Alarm threshold can be set Alarm Method: Sound and light alarm, self setting alarm value (factory set to 4 μ Sv） Display: Approx. 60 x 42mm / 2.36 x 1.65in large screen, HD LCD display, six digit digital LCD display (including display of various methods and labels) CAL Coefficient: 0.01 to 9999 range Working Temperature: -50 ℃ to +80 ℃ For Sievert, for Rem Display Conversion: Yes Bar Chart Display: Yes Save Maximum Value Display: Yes Response Time: Less than or equal to 3 seconds Sensitivity: CO (60): 3480CPM/mR/h Package List 1 x Geiger Counter 1 x Storage Box