• Mastech MS6410 laser distance meter for measuring distances up to 40 meters. • Accuracy: ±2mm, measurement units: meters, inches, feet. • Features: area, volume, addition, subtraction, continuous measurement, min/max distance tracking. • Class II laser product, wavelength 635nm, output power <1mW. • Applications: construction, surveying, interior design, real estate. • Requires 2 x AAA batteries (not included). • Compact and lightweight design for easy portability.