Feature●✿✿(1)Digital/graphic display(128 x 64 OLED dot matrix display),with back light gives exact and clearly reading although you stay at the somber conditions.Electromechanical integration design, small volume, light weight, easy to use.●✿✿(2)This surface roughness tester with automatic dormancy, automatic shutdown and power saving function.Real-time clock settings and display, convenient data recording and storage.●✿✿(3)Pocket-size & economically price.Large measuring range suitable for most materials.●✿✿(4)Measurement information display, menu prompt information, false information and switch machine and other tips that information;●✿✿(5)The lead time is about 5 business days,This JD350 surface profile gauge with a 1 YEAR WARRANTY, if you received a defective item, we will offer free replacement. Rest assured to purchase this handheld JD350 surface profile gauge!Description