Feature: 1. Multi‑function, besides having a clear horizon, it can also measure the distance of fixed or slow moving objects within a certain range. 2. High measurement accuracy, it takes a short measurement time, can display the distance intuitively, and can record data more conveniently. 3. Low power consumption, it uses a rechargeable lithium battery in the machine to supply power, low energy consumption, can extend the use time, and can automatically cut off the power. 4. Laser emission power is small, it can automatically select the ranging object without pairing, and it is safe for the human eye. 5. Small in size, it is lightweight and portable, and it can be easily held for measurement in various situations. 6. It is widely used in the installation of power equipment (the whole system is equipped with scanning and measurement functions, which can easily identify small targets in the distance, such as electrical wires and electrical towers), highways, municipal engineering, forestry survey and design, construction, network planning, survey and design, communication maintenance , Sniper, hunting and other outdoor various types of measurement. Specification: Item Type: Range finder Product Size: Approx. 10.5x6.5x3.3cm / 4.1x2.6x1.3in Measuring Range: 3-500m.±(1.0m+Dx0.2%) Measurement Response Time: <0.5s (<120M 64ms: ≥120M 460ms) Telescope Magnification: 6X+5% Field Of View: 7.0°±5% Objective Lens Aperture: Approx. 19mm / 0.7in Material: ABS Eyepiece Aperture: Approx. 15mm / 0.6in Exit Pupil Diameter: Approx. 3.7mm / 0.1in Diopter Adjustment Range: ±6° Diopter Weight: Approx. 324g / 11.4oz Laser Wavelength: 905nm Power Supply: 3.7V 750mAh Li-Ion Battery (Battery Included) Battery Life: 500 Times of Charging/Discharging Battery Working Time: 20000 Measurements (Full Charge) Function: Height Measurement Function, Slope Measurement Function USB Interface: For USB Type-C. Package List: 1 x Range finder1 x Connection Line1 x Portable Bag1 x Cord1 x Manual Note: 1. When the battery shows that the battery is low, the battery should be charged in time, otherwise the ranging error will increase.2. Do not touch the surface of the lens with your fingers, so as not to damage the film on the surface of the lens.3. This machine has been fine‑tuned by accurate instruments, please do not disassemble it at will, if it is damaged, it should be sent to a special department for repair.4. Please wipe the lens gently with a lens cloth, never wipe it with other objects.5. When carrying, avoid collision or heavy pressure.6. When carrying or using, do not subject it to baking or corrosion.7. When storing, it should be protected from moisture, and should be stored in a dry, cool, and ventilated place to prevent direct sunlight, dust and sudden temperature changes.8. Never aim the machine directly at the sun or strong light source to avoid damage to the photosensitive components in the machine.