Large easy to read LCD display - will display in mm and when imperial will display decimal centimeters and fractions in inches. Function: on/off switch, mm/inch switch, zero setting, data output. Applications: It can be used to measure height and depth for woodworking, router table, machine making, DIY, etc. Material: The ruler body is made of lightweight and durable plastic. wear.Stable magnetic base provides easy positioning and allows gauge to lay flat for router fence positioning.Digital depth gauge 0-150mm, electronic measuring tool for carpentry, saw table, router, etc. Description: Top quality product. The digital height gauge is lightweight, high strength, wear resistant. It can be used to adjust the height of saw blade and router bit as well as to set the distance from a router fence to the bit. This gauge is a very precise measuring device developed specifically for woodworking. Power supply: one A3 V battery (not included) Specifications: Product name: gauge digital height.Material: plastic.Color: black.Dimensions: approx. 16 x 230 x 40 x 60 mm. Function: on/off switch, mm/inch switch, zero adjustment, data output. Package includes: 1 gauge of digital height. Note: The data are all manual measurement, please allow 1-3cm error, due to the light and display difference, there will be some difference in color, depending on the physical item received.