1. Accurate measurement, high-definition imaging, safe for human eyes, compact size, 6x optics, intelligent energy saving, strong anti-interference. 2. Safety protection, waterproof, fall proof and dust proof. 3. Light and compact, easy to carry. Specification: Range finder: semiconductor ranging (safe for human eyes) External dimension: 96*34*67mm/3.78*1.34*2.64in Weight: 140g Wavelength: 905nm/0.0000356in Ranging range: 5-1000m/196.85-39370.08in Range error: ±0.5m/19.69in Range resolution: 0.1m/3.94in Angle measurement range: 0-90 degrees Angle measurement accuracy: 0.3 degrees Angle display resolution: 0.1 degrees Ranging display mode: visual field through the LCD display Telescopic power: 6.5 times Telescope aperture: 24mm/0.94in Eyepiece size: 13.2mm/0.52in Lens quality: multilayer coating Operating temperature: -20-50 Use humidity: ≤80% Exit pupil diameter: 3.1mm/0.12in Exit pupil distance: 12.1mm/0.48in Focusing mode: eyepiece manually focused Ranging mode: manual mode, altimetry and angle measurement mode, automatic scanning mode, GOLF mode Protection class: IP54 Power supply: CR - 2 (3V) Note: There may be slight size deviations due to manual measurement, different measuring methods and tools. The picture may not reflect the actual color of the item because of different photographing light, angle and display monitor.