PDG-100 electronic dosimeter use the low-power processor and high sensitivity energy compensation type detector. With our nuclear data processing technology, the PDG-100 can accurately measure the natural background radiation and response quickly. If you are looking for this product, come and have a try, it will not let you down. Features: Wide Applications: This radiation tester can be widely used in decoration stone testing, industrial nuclear pollution testing, geological survey testing and so on. Using the LCD display, the working status of the nuclear radiation instrument is clear on the display, and you can quickly and accurately read the data you need. Hand-held portable design, easy to carry and store, you can put it in your pocket for carrying. Compensatory design for detector energy response technology can give you the more accurate data. The radiation level is displayed: SAFE/ALERT/AWAY to let you understand the detection situation more clearly, even the elderly and children can understand. The alarm threshold can be freely set according to your needs. Specifications: Material: ABS Color: Silver, red (optional) Detector: energy compensation Detectable ray: X, gamma and high energy beta Ranges: 0.01uSv/h~10mSv/h, 0.01uSv~999.99Sv Energy ranges: 40keV~3Mev Relative error: less than ±15%@Cs-137 Resoponse time: less than 3 sec for 10uSv/h Stability: less than 5% Alarm mode: sound, light Indicaotor light for ray Alarm threshold: freely set Units: uSv/h,mSv/h,uSv,mSv Battery: 1 * lithium battery, 1000mAh (included) Package size: 165 * 165 * 55mm / 6.5 * 6.5 * 2.2in Package weight: 220g / 7.8ounce Packing list: 1 * Dosimeter 1 * User Manual 1 * Hangings Rope