1. The radiation detector adopts professional Geiger counter and energy-compensated counter tube as the core sensor, which can accurately -ray,-ray and X-rays. Fast detection speed, strong anti-interference ability, high sensitivity, wide measurement range and long service life. 2. Multi-function page for real-time monitoring: instantaneous dose rate, cumulative dose, average dose rate, easy observation in different light environments. 3. Intelligent alarm function, radiation detector can be arbitrarily set the cumulative alarm value and dose rate alarm value. Support sound, flash, vibration three alarm modes. 4.TFT high-definition display, easy to observe in different light environments, easy to read; built-in lithium battery power supply, power saving and durable. 5. Suitable for home, hospital, laboratory, nuclear power plant, processing enterprises, metallurgy and other scenes. Measuring range: 0.05uSv/h~10mSv/h Working environment: -20~50C; Power supply: USB charging Battery capacity: 400mAh Colour:black Material:ABS Size:16 x 35 x 105mm Package Contents: 1 x Detector 1 x USB cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.