The repeatability is 0.01. It can measure insulated workpieces. The probe signal NPN does not include the system wiring, you have to read the system manual wiring by yourself. Generally support the tool setting instrument. Without wiring, it can be used as a photoelectric splitter. Probe length: 20mm Clamping diameter: 6mm Clamping length: Less than 20mm Repeatability: 0.01mm XY swing pair: 3mm (it will be damaged if it exceeds the stroke) Z pendulum pair: 1.5mm (it will be damaged if it exceeds the stroke) Battery: Lithium battery (online automatic charging) Offline work: support (can be used as a photoelectric splitting rod) Connection work: support (can be used with the system suitable for automatic centering) Connection : distribution data line Probe: 1 tungsten steel Probe: 1.5 ruby Waterproof rating: IP43 (you can work under the environment of spraying coolant if you are not hungry) Working voltage: 6-30v (overpressure , low voltage can not work) Colour:As Shown Material:Metal Package Contents: 1 x edge finder Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.