Features High Quality Material: The compact depth gauge is made of high quality ABS material, sturdy, and can be used for a long time. High Definition Display: Equipped with LED high definition display, large numbers display the measured data, at a glance. 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. Wide Range Of Application: Suitable for bridge framing, railway paving, civil engineering, construction, decoration, industrial automation, intelligent platform, mechanical processing and other fields. Measurement Method: The measurement method is horizontal and vertical measurement, with the conversion function of millimeters, meters, inches, and feet. Specification: Item Type: Depth Gauge Material: ABS Power Supply: 1 x CR2032 3V (Battery Not Included) Purpose: Depth Measurement Measurement Method: Horizontal and Vertical Measurement Range: 0-80mm (Height), 0-50mm (Depth) Resolution: 0.01mm Display: LED Digital Display Unit: mm/m/inch/ft Package List:1 x Depth Gauge (Battery Not Included)1 x Manual  Note:Please store it in a safe place when not in use, so as not to affect the measurement accuracy due to collision! Package List 1 x Depth Gauge (Battery Not Included) 1 x Manual