Comes with instruction manual, printer paper, printer ribbon, sample carousel, evaporation shield, 30 uL sample tubes, 1 pk of CON-TROL 290 Ampules, and calibration standards of 100, 500, 1500 and 2000 mOsm/kg. Power: 115v, 50/60 Hz. Multi-OSMETTE is shipped assembled and ready to use.