Double Dual Twin Beam 12" Dial HEIGHT GAGE .001'' Digital Digit Counter Gauge 12" Dial Height Gage Double beam ; Range 0-12" ; Dial graduation: 0.001" ; Counter Reading: 0.1" Dual directional mechanical digit counters can be zero set at any position within the range Error-proof digit counter features a zero-reset button ; Fine-adjusting wheel and lock Quantity: 1 ; Unit overall dimension: 3-1/2''L x 8-1/4''W x 18-1/2''H