This portable honey color analyzer measures the percent light transmittance of honey compared to analytical reagent grade glycerol (calibration fluid.) The transmittance value allows identification of the honey Pfund grade. This unit is rugged and simple to use with easily identifiable readings. Measures a range 0 - 150 mm Pfund. Comes complete with 4 square cuvets, 30 mL glycerol, 9 volt battery and instructions. Accessory kit, sold separately, includes 82 matched square cuvets, glycerol, syringes and a 9 volt battery.