Feature: 1. 1. Hand-held instrument design, built-in rechargeable battery, with detection sensitivity, especially suitable for environmental radioactivity monitoring, to detect traces of nuclear radiation. Easy to carry around. 2. 2. Multi-function design, using built-in probe type, effectively protect the probe from damage, onboard digital color screen, with real-time radiation value bar graph display function. 3. 3. It can quickly judge the surrounding radiation situation and quickly locate the exact location of the radiation source. 4. 4. Strong anti-interference ability, able to operate reliably in complex electromagnetic environment. Specification: This is a high-quality Geiger counter with high detection sensitivity, especially suitable for environmental radioactivity monitoring and detection of traces of nuclear radiation. It has strong anti-interference ability and can operate reliably in complex electromagnetic environment. Widely used, it can be used for radioactive detection in home environment, daily necessities, mineral rocks, decorative stones, etc., and can also be used for radioactive leakage detection in industrial or imaging equipment. you may try it. Specification: Detection technology: Geiger counter Display mode: TFT2.8 inch color screen Sensor: GM counter tube Detectable types: Gamma rays (γ), X-rays, inspection of nuclear pollution sites Applicable temperature: (-10ºC-+45ºC)≤95% (+45ºC) Energy range: 50keV-1.5MeV≤±30% (for 137CsI) Dose equivalent rate: 0.01-1000μSv/h (maximum: 10mSv/h) Relative congenital error: ≤±15% (137CS1mSv/h) Flexibility: 80CPM/μSv/h (such as Co-60) Dose rate: select 0.5, 1.0, 1.5, 2.0, 2.5, 5.0, 50, 10.0, 50.0, 100.0 μSv/h. Dose rate unit: μSv/h Measurement display: display dose rate per second, protection alarm response less than 5 seconds. Charging interface: suitable for Android Product Net Weight: 195g/6.88oz Color box size: 160*66*31mm/6.30*2.60*1.22in Model: Y-M06 Material: ABS Color: White Battery: 1*5V, 5000mAh battery (included) Package List: 1 * Geiger counter 1 * USB cable Note: Due to the lighting effects and shooting angles, there is color difference in the product, please understand.Due to manual measurement, there is a tolerance in the product size.