... user manual in Chinese!1.5 a LCD display, with white backlighting!2. To be automatic zero tracking3. To be ... 12. Using the United States the most advanced sensors,13. White backlighting function, clearer, more convenient!The product specification parameters are ... turned off2, product operation temperature 10-30 degrees3, 5 LCD white light show4, product use 2 section 7 batteries5, exterior size: 116 ...