Digimatic Outside Micrometer Range: 250 Mm-275Mm, Resolution:0.001 Mm, Maximum Per Missible Error:+-4 Micron, Parallelism:4 Micron, Flatness:0.3 Micron/0.000012 In, Dust/Water Protection Leve L:Ip 65, Error Alarm, Function Lock, Battery: Sr44, Measuring Face: Carbide. Calibration Certificate From Nab L Accredited Laboratory To Be Provided Along With The Material. [ Warranty Period: 30 Months After The Da Te Of Delivery ] ]