1、High Quality Material: The compact depth gauge is made of high quality ABS material, sturdy and durable, and can be used for a long time. 2、High Definition Display: Equipped with LED high definition display, large numbers display the measured data, at a glance. 3、Magnet Design: There is a strong suction magnet at the bottom, which can be attached to iron objects to make the measurement more stable and accurate. 4、Wide Range Of Application: Suitable for bridge framing, railway paving, civil engineering, construction, decoration, industrial automation, intelligent platform, mechanical processing and other fields. 5、Measurement Method: The measurement method is horizontal and vertical measurement, with the conversion function of millimeters, meters, inches, and feet.