SNDWAY H-D100A Handheld Laser Rangefinder Infrared Measuring Instrument 1. Good phase optical linearity, accurate and stable 2. Waterproof and dustproof, 1.5 meters anti-drop, double photosensitive holes 3. Aspherical optical lens to enhance reflected signal to ensure accuracy, stability and low power consumption 4. HD backlight, easy to use in dark environment 5. Large capacity, 99 sets of data storage 6. Measuring range: H-D510A: 50 meters, H-D710A: 70 meters, H-D100A: 100 meters, H-D120A: 120 meters 7. Scope of application: indoor ranging measurement, lengthheight measurement, infrared ranging 8. Measurement mode: length area volume Pythagorean angle measurement height measurement wall speed measurement 9. Input current: 1A 10. Input power: 5w 11. Working voltage: 3.7v 12. Power mode: USB charging built-in lithium battery 13. Battery capacity: 850mah 14. Protection class: IP54 15. Packing list: main unit, USB charging cable, manual, color box, carrying bag, reflector, lanyard 16. Dimensions: 11.2 x 5 x 2.5cm 17. Weight: about 240g