Feature Unique Point: The photoelectric edge finder has the feature of measuring without turning. Wide Application: This high precision mechanical edge finder is suitable for use on conventional milling machines and integrated processing machines. Practical tool: This photoelectric mechanical edge finder can measure the X and Y axis coordinates of the workpiece. Easy to use: when you touch the edge finder probe to the workpiece, there will be a red light and a beep. Note: This edge finder is an electronic product. Try to avoid short circuit or corrosion caused by cutting fluid entering inside. Specification: Name: edge finder Material: main body stainless steel Color: silver Size: as shown Battery: 2pcs 1.5V battery Weight Weight: about 168g Package List: 1 x Edge Finder 1 x English Manual 1 x Box Note: To ensure the accuracy of the measurement, do not directly touch the probe with your hands. If not used for a long time, please remove the battery to extend the battery life. If the battery power is insufficient, please replace the same type of battery immediately. This edge detector is an electronic product. It should avoid the short circuit or corrosion caused by the cutting fluid entering inside.