1. Personal Geiger counter, radioactive radiation detector, X-ray, β - γ ray detector. - Portable design for easy carrying. The Geiger counter has built - in sound and visual signals that can be emitted when radiation is detected. It can be used for detecting and monitoring radiation in indoor, outdoor and other similar environments. It has an automatic data recording function. 2. Features - High sensitivity. - Wide measurement range. - Extremely durable. - Modern main sensor - GM tube, also used in the military industry. 3. Purposes of use - Material inspection. - Environmental testing. - Radiation protection. - Radiological environment monitoring. 4. Specifications - Detectable radiation: β, γ, X - rays. - Sensor type: GM (Geiger - Müller) tube. - Energy range: 50 kv - 1.5 mev, less than 30%. - Relative average error: less than ±10%. - Sensitivity: 80 cpm / μSV / Co - 60. - Maximum dose equivalent rate: 99.99 μSV / h. - Sound source: Real particle sound, sound alarm, off. - Environmental temperature: - 25 ~ + 45°C. - Relative humidity: less than 95%. - Power supply: 2 AA batteries (not included), powered via USB port.