The Wixey Portable Planer Readout model WR510 Type 2 has an angled display for easy viewing, uses AAA batteries and an auto shut off. It fits most portable woodworking planers. It easily mounts to Dewalt, Delta, Ridgid, Ryobi, Makita, Craftsman and others. It mounts in minutes and is calibrated in seconds. It displays the thickness of the wood coming out the back of the planer in inches with fractions or millimeters. Fits Most Portable Planer Brands Such as Dewalt Planer dw735x, Delta, Ridgid, Ryobi, Makita, Craftsman, JET, Grizzly, Hitachi. Visit us for more thickness planer model specific info. Easy Mounting Thickness planer digital readout kit includes brackets and detailed instructions for easy mounting on many portable planer models without drilling a single hole Lightning Fast Gauge Calibration Accurately display the thickness of wood coming out of your portable planer in seconds with the Wixey patented calibration system. Precise Fraction Technology Large easy to read angled planer digital readout displays board thickness in millimeters or inches with fractions using Wixey patented technology. Standard AAA Batteries Power the Planer digital readout. Recalibration of the digital planer gauge is necessary when the battery is replaced or the portable planer blades get worn.