COATING THICKNESS GAUGE Designed specifically to meet the requirements of the automobile industry Easy calibration on zero point 3 kinds of adjustable resolution for different application High speed data collection Designed specifically to meet the requirements of the automobile industry Easy calibration on zero point 3 kinds of adjustable resolution for different application High speed data collection Subtle design for easy hand operation Single testing method Auto switch off Easy conversion between metric and inch Technical Specifications Operating principle    Magnetic induction Measuring range    0 ~ 1250 μm 3 adjustable resolution    1μm, 5μm, 10μm Measuring accuracy    1μm     ± (3%H + 1μm) 5μm     ± (3%H + 5μm) 10μm     ± (3%H + 10μm) Power supply     Battery 1.5 Standard AAA type (2pcs) Operation temperature    0 ºC~ 40 ºC (32 ºF ~ 104 ºF) Humidity    20% RH ~ 90% RH Dimension    110mm x 50mm x 23mm Weight    100g