Features: Real-time Detection and Total Dose: FS-600 is a small high-range radiation detector to monitor X-ray, γ-ray and β-ray, it can detect radiation dose rate in real for time, and record the cumulative dose value at the same for time. High-performance Chip: 32-bit processor, strong anti-interference ability, high detection accuracy range. Two Power Supply Modes: Support both battery and USB power supply modes, you can use 3 AAA batteries or USB cable to charge for power supply. Built-in Data Memory Card: accumulated dose value, dose rate alarm reading value, dose alarm threshold and other data will not be lost after power failure. Easy to Operate: with a 64x128 dot for matrix LCD display, one for key enter the setting interface, the alarm preset value, for time, switch between Chinese and English backlight mode, curve display, particle sound switching and other functions can be adjusted as needed. Wide Application: widely used in decoration stone detection, industrial nuclear pollution detection, geological survey detection, etc. Specifications: Material: ABS Plastic Color: Black Model: FS-600 Detectable Rays: Beta-ray, Gamma-ray, X-ray Sensor Type: G-M tube Dose Rate Ranges: 0.1μSv/h~10mSv/h Dose Ranges: 0.00μSv~10Sv Sensitivity: >1cps/uSv/h (under the source of Condition Co60) Relative-Intrinsic Error: <10% (at 1mSv/h) Power Supplys: 3x AAA battery (Not Included) or USB Cable (Not Included) Power Cconsumption: <150mW Package Size: Approx. 160 x60x35 mm/6.3 x2.4x1.3 inch Package Includes: 1 Piece Radiation Detector note: Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.