Details: Accuracy : (0.8+L/50) micrometer, L = Measured length (mm). Employs linear stroke bearings on the spindle movement for durability. Thrust stem with a clamping nut is optional. Interchangeable contact points for dial indicators can be used. Photoelectric linear encoder length standard. Stroke ball bearing type. Dust/water protection level: ip66. 3mm carbide contact point. Output signal: 90° phase difference, differential square wave (RS-422A equivalent). 0.4 micrometer signal pitch. 80"/2m cable length.