Feature:    1. MAIN PURPOSE: Handheld nuclear radiation detector with high accuracy and sensitivity, measuring range is 0.05uSv& 8209;50mSv, can be used to monitor X, β and y rays. 2. GOOD PERFORMANCE: The microprocessor with powerful performance is selected and equipped with a TFT2.0 color screen, which is easy to operate and has less interference. 3. ALARM METHOD: Arbitrary combination of sound and flash alarm methods, and the alarm threshold can be set arbitrarily, when the threshold is reached, an alarm will be issued in time. 4. MULTIPLE FUNCTIONS: With real time monitoring, automatic over standard alarm and fault self checking function, support timing measurement, can be set arbitrarily between 00& 8209;999 hours. 5. APPLICABLE SCENES: Widely used in home improvement radiation, nuclear laboratory, petrochemical, geological census, radiation dose supervision and protection for individuals. Specification: Item Type: Nuclear Radiation Detector Model: PTL816 Material: ABS Battery: Rechargeable lithium battery 3.7V 1500mAh (built in battery) Application: Nuclear radiation detection alarm Scope of Application: Home improvement radiation, irradiation processing enterprises, health and epidemic prevention, radiotherapy, nuclear laboratories, nuclear power plants, import and export commodity inspection, building materials, petrochemicals, geological censuses, scrap iron and steel, industrial non destructive testing, etc. Under the environment of ionizing radiation, personal acceptance radiation dose supervision and protection situations. Sensor: GM counter tube Measuring Range: 0.05uSv-50mSv Measurement Accuracy: -17%-+25% based on 137CsY Battery Life: 20 (continuous measurement, no particle sound) Charging Interface: TYPE-C Interface (green light is always on when charging, full off) Alarm Response Time Td: