Dual Range: 15-2000 & 500-10,000 PSI with interchangeable low- and high- pressure pistons Accuracy 0.1% of produced pressure For oil use only Self contained, with tools & carrrying case > Each Unit Includes Hand Jack set (A3220) Spare O-Rings (4722P) 1/4 and 1/2 NPT Female Fittings Offset pipes for back and bottom connection guages Manufacturers NIST traceable certificate Instructions