Measuring range from 5m to 450m, with +/- 0.5m accuracy Glass lenses with multi-layer coating bring wide field of view, high light transmittance, and clear and bright images HD prism set improves viewing effect and accuracy Built-in 450mAh rechargeable battery, low power consumption and long battery life Compact and lightweight, simple to operate and easy to fit in your palm and pocket Widely used in golf, hunting, building construction, forestry survey, hiking, outdoor sports, power detection, etc Specification: Measuring range: 5-450m Measurement accuracy: ±0.5m Speed measurement range: 20-300km/h Speed measurement accuracy: <5km/h Laser wavelength: 905±5nm Angle measurement range: 0-90° Laser safety level: CLASS 1 Units of measurement: yards (Yd), meters (M) Magnification: 6.5X Eyepiece aperture: 13mm Objective lens aperture: 24mm Focusing method: eyepiece focusing Ranging mode: support All-in-one mode (measure distance and angle, and calculate height and horizontal distance): support Scan mode (continuous measurement of distance, angle, height and horizontal distance): support Two-point height measurement mode (measure the height difference between two points): support Speed measurement mode (measuring the speed of objects): support Golf distance correction mode: support Memory storage function: 10 groups Angle calibration: support Mode memory function: support Angle switch (slope switch): support Flagpole lock-vibration prompt: support Working temperature: -20℃~50℃ Waterproof level: IP54 Battery model: 450mAh lithium battery