The Starrett 798BX-6/150 Electronic Caliper has a measuring rang of 0-6"/ 150mm,.0005" resolution and Carbide Faces. Features a large, easy-to-read, high-contrast LCD readout. It includes IP67 protection against coolants, water, chips, dust and dirt often found in machine shop environments. Its induction type linear encoder system and inch/millimeter metric conversion makes Starrett precision measuring tools the right choice for any job. It includes SPC Output and comes in a fitted, plastic case with Rolling Thumb Wheel, Control Buttons on Face, Zero, On/Off, Fine adjustment, Slide lock, Zero at any position and Auto shut-off after 30 minutes of non-use.