Mahr Federal MarSurf PS1 Pocket Surf. Portable Surface Roughness Gage . Checking Surface Roughness. Over 500 measurements without having to recharge the instrument. An-all-in one solution that is no larger then a digital camera. Small and lightweight. Instrument flexibility. The standard range of funtions is sufficient for this all-purpose smart little instrument to perform your measuring tasks. Automatic cutoff selection (patented) so that even non-specialist are ensured correct measuring results. INCLUDES: PS1 Base unit, 1 Standard pick-up 5µm (200µin) Stylus, Built-in Battery, Roughness standard integrated into casing. Height adjustment accessory, Pick-up protection, Battery Charger, Operating Instructions, Carrying Case with shoulder strap ansd belt loop, USB cable and Calibration Certificate