Introduce of Bosean Bosean was founded in 2013, specializing in the development and production of gas detectors, gas analyzers and rangefinder. At present, our research and development instruments have been spread all over the world. R&D and Production Bosean has always strictly implemented the ISO9001,CE,ATEX, ROHS quality management system. We adhere to the high standards of product quality, strict requirements, adopting the world-class production equipment, advanced management and production experience, developing the high-quality testing equipment. Function: 1. Nuclear radiation,can detect X, β, γ Ray . 2. Trend graph, Particles sound, Alarm sound, Display sound. 3. Built-in Geiger counter, which is characterized by accurate measurement and high range. 4. Measure the dose rate real-time, and record the cumulative dose at the same time. 5.The dose rate alarm threshold and dose alarm threshold can be continuously adjustable and arbitrarily set. 6.Can view the start date of the current cumulative dose. 7.Have dual alarm functions of dose rate and dose value. 8. With buzzer sound alarm function. 9.When the radiation dose rate exceeds 10mSv/h, it has a blocking warning prompt function (display 999MAX). 10.Built-in memory, the accumulated dose value, dose rate alarm threshold and dose alarm threshold data will not be lost after power off. 11.Continuous monitoring of battery power, Low battery reminder function. 12.With real-time dose rate curve display function. 13.Screen backlight ON/OFF function. 14.Particle sound ON/OFF function. 15.The external Type-C interface can be used for power supply. Parameter： Material: ABS Color: White, Black Detectable species: Beta, Gamma, X-ray Sensor type: G-M tube Energy range: 50kev-1.5mev less than 30% Relative intrinsic error: less than plus or minus 10% Sensitivity: 80cpm / μSV / Co-60 Measuring range: 0.1μSv/h~10mSv/h The maximum dose equivalent rate: 10mSv/h Voice source: real particle sound / alarm sound /mute Alarm threshold: 0.5 (Adjustable) The use of ambient temperature: -25 ~+45℃ Relative humidity: less than 95% Power supply: 3 * AAA battery (included) or USB cable (included) Item size: 116 * 60 * 25mm Item weight: 145g / 5.1ounce Package size: 160* 60 * 25mm Package weight: 160g