The Starrett 799 Series Electronic Caliper is light, comfortable, easy-to-use, and constructed with features that have made Starrett slide calipers the machinist's first choice for many years. The 799 offers a slim, streamlined profile, a large, clear, easy-to-read LCD display, long battery life, and function buttons for zero and inch/mm. Electronic Caliper, 0-6 (0-150mm), w/o Output, w/Plastic Case