Check the listing for details. V5 Anti-Roll 3D Touch Probe Trigger Edge Finder Compatible With Mach3 and Grbl. Condition: New. Listed at 73.00 USD. 3D Trigger Edge Finder Touch Probe Three-coordinate Setting CF-38 For CNC Grave From CN by fast shipment within one days handling time send out for you Package include: 1 x V5 3D Precision Tool Setting Specification Model:V5; Approach direction:±X/±y/±Z; Repeatability:＜0.01; Working voltage:DC 5-24V; Cable length:2m; About Travel Protection Distance: XY plane ±4mm.Z direction 2mm. The housing is made of finely brushed black and silver oxidized aluminum alloy, flat and anti-roll design, the pin is integrated stainless steel processing, with tungsten steel ball head, wear resistant. 3D edge finder with excellent waterproof and dustproof performance that effectively extends the service life. With signal light, green light when power is on and red light when triggered for greater clarity. Application Suitable for GRBL control board and Mach3 systems etc. By connecting the CNC signal input (tool setting port), it can quickly find the mind, search for edges, search for a round heart, search for a measuring workbench and other functions. Precautions: 1.Need to turn on the spindle speed? Never, never, never. Don't laugh, there are such users. 2.How to distinguish the three wires? The red wire is VCC, the black wire is GND, and the white wire is IO. 3.Why is the concentricity different every time the probe is installed? Because your ER chuck spring clip cannot guarantee 100% uprightness. Every time the probe is installed, even if the concentricity is adjusted to 1 wire, there will still be deviations when the probe is removed and installed again. So your chuck is best to buy AAA and above accuracy (concentricity