1. The -screen display makes it easier to read test results, and the buttons are easy to operate.Comprehensive detection for more secure safety.It can detect all radioactive nuclides such as hard B-rays, y-rays, x-rays, hydrogen pollution, , jewelry, jade, antiques, furniture,diatom mud, iodine 131, iodine 125, 241, etc2. The shell is made of ABS, which has excellent heat resistance and cold resistance, high strength and excellent toughness.3. High sensitivity, wide measuring range and long service life.4. It can meet the needs of detection, substation detection, ambient temperature/humidity detection, mobile signal tower detection and so on. It can also be applied to material inspection, environmental testing, radiation protection, radiopharmaceutical screening, etc.5. Use the mute, alarm, particle sound selection button, test, average reset to retest the selection button, the backlight can be turned on or off.Detection Technology: G-M detection technologyDetection Range: , , X-ray, temperature and humidityDisplay Mode: TFT screen + backlightEnergy Range: 20kev~3.2mev 30%(137Cs-)Sensitivity: 80cpm/Sv/(Co-60)Test Accuracy: 0.01 Sv/hReal-time Range: 0-99.99 Sv/hAccumulation Range: 0-99.999 /hReal-time Error: 10%Mean Error: 3%Temperature and Humidity DetectionPower Supply: 3*1.5V dry batteries or 3*1.2V rechargeable batteries(not included)Charge Input: USB 5V 2ABattery Time: 4 hoursProduct Size: 105 x 70 x 30 mmColour:blackMaterial:ABSLanguage: Chinese-English-Japanese-Korean(Asian), English-Russian-Ukrainian-PolishPress the M key to enter or exit the settings menu.Press the L key to confirm or exit the setting .Press the R key to select setting up and down.Press the L+ R keys simultaneously to clear the accumulated detection value.Package Contents:1 x Geiger Counter Radiometer