Electronic Double Dual Twin Beam 12" 300mm HEIGHT GAGE Digital .001'' Gauge Electronic Height Gage; Batteries NOT include. Requires 1 A76 battery. Range: 0-12"/0-300mm ; Resolution: 0.001"/0.01mm ; Repeatability: 0.01 mm Accuracy: 0-200 mm: 0.03 mm ; 200-400 mm: 0.04 mm ; 400-600 mm: 0.05 mm mm/inch conversion ; On/off switch ABS/INC ; switch-able and hold function Quantity: 1 ; Unit overall dimension: 3-1/2''L x 8-1/4''W x 18-1/2''H