Multimeter, SevenDirect(TM) SD23 Standard kit, incl. InLab® Expert Pro-ISM® pH single-rod measuring cell, InLab® 731-ISM® conductivity sensor, buffer solutions (pH 4.01, 7.00, 9.21 and 10.00 / 1413 µS/cm and 12.88 mS/cm, 2x 20 ml of each), electrode holder and protective cover.