Comes with instruction manual, 24 2.0 mL sample tubes, 12 0.2 mL sample tubes, spare stirring wires, printer paper, 1 pk of CON-TROL 290 Ampules, 100, 500, 1500 and 2000 mOsm/kg calibration standards, bath liquid, and test tube rack. Power: 115v 50/60 Hz. OSMETTE XL is shipped assembled and ready to use.