Manufacturer Part Number: CG104|Minimum Thickness Measurement|Maximum Thickness Measurement|Accuracy|3% (7.9 to 39.0mils) mil; 4 digits (0 to 7.8mils) mil; 5% (39.1 to 80.0mils) milProbe Material|Base Material|Display Type|Batteries Included|YesNumber Of Batteries|2Battery Size|AAABattery Chemistry|Data Storage|YesFor Use With|Includes|AAA Batteries; Calibration Standards (One Ferrous Plate, One Non-Ferrous Plate and One Standard Coating Plate Film); Soft Case; Wrist StrapStandards|CE; GB/T 4956-1985; GB/T 4957-1985; JB/T 8393-1996; JJG 818-93; JJG-889-95UNSPSC Code|