Features: 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. With the function of automatically storing cumulative dose, even if the is suddenly cut off, the data will not be lost and can be stored for a long . There are three methods: sound, and , which can better remind you and give you a better experience. Hand-held portable design, easy to carry and store, you can put it in your pocket for carrying. NR-750 has three measurement units: uSv/h, uGy/h, mR/h, which can meet your daily needs for detecting radioactive radiation. Specifications: Material: plastics Detecting rays: X, Y, Dose current rate: 0.00~1000usv/h (10msv/h) Accumulated dose equivalent: 0.00uSv~500.0mSv Energy ranges: 48keV~1.5Mev30% (for 137Cs-) Language: English, Chinese Sentivity: 80CPM/uSv (for Co-60) : 2 * AA (NOT INCLUDED) Item weight: 120g / 4.2ounce Package size: 172 * 126 * 36mm / 6.8 * 5.0 * 1.4in Package weight: 200g / 7.1ounce Attention The and date displayed on the screen are used to record and mark the measurement , not the real . The and date are reset when the is turned on and off. Packing list: 1 * Nuclear Radiation