Automatic Coating Adhesion Tester 20mm Dolly Adhesion Stength Range 0 to 3000 psi 0 to 20 MPa 50mm Dolly Adhesion Stength Range 0 to 500 psi 0 to 3.5 MPa Adhesion Stength Accuracy +/- 1 Percent Full Scale Adhesion Stength Resolution 1 psi (0.01 MPa) Display LCD Interface USB Recording Capacity 200 Tests Standards ASTM D4541/D7234 ISO 4624/16276-1 Battery Type AA