The Triplett LazerTape 160 is a compact feature loaded Laser Distance Meter specifically designed for indoor applications. With it, one person can measure distance in seconds with high accuracy and repeatability. Housed in a rugged overmolded case, with durable soft touch buttons and backlit LCD display, the LazerTape 160 offers convenient and reliable performance. Built-in features include Addition, Subtraction, Area, and Volume measurement and calculation. Useful to Installers, Estimators, Contractors, Realtors, Technicians, Electricians, Plumbers, Painters, Carpenters, Flooring specialists, Handymen, Appraisers, and many other Tradesmen and DIY"ers, the LazerTape 160 is a great addition to anyone"s tool pouch. Specifications and Features: +/- 0.06" Typically measuring accuracy up to 30", meters, inches, feet measuring units, Class II Laser, 635 nm, less than 1mW type laser, IP 54 dust protect/splash proof, 20 memories, calculate area or volume, auto power off, low battery indicator, carrying case included, uses 2 AAA batteries, Three year limited warranty.