Digital Absolute + Axis Goniometer (Built In) Undercast Padding Weight Capacity: 390 Lb Style:Right Ear Weight Capacity: 390 Lb 180 Kg * Ideal for home * Features a highly accurate electronic weighing mechanism for years of reliable and accurate measurements * Built tough to give years of reliable service * Easy to read display modern design with high contrast 1 Weight Capacity * 22 Width between arms The integral absolute vertical and horizontal levels are permanently incorporated into the digital goniometer arm * Goniometer reads 0 180 degrees on LCD screen * Has ability to freeze angle measurement * Powered by 1 9V battery * Goniometer exterior is powder coated steel with inch cm marks screened onto arms * Digital angle reached in center * Horizontal and vertical levels to indicate level or plumb starting point *