This used Hach HQ 30D portable multimeter for pH, Conductivity and Optical Oygen multimeter is in a good condition. The offer includes two intelliCAL pHC 201 electrodes, one Intellical ORP-REDOX conductivity electrode and one Hach LDO optical oxygen electrode. All electrodes are tested and properly stored in a suitable buffer solution. Hach is a leading manufacturer for this type of instruments. See the folder and HACH HQ 30D manual for more info and specs.
A new Hach HQ 30D set without the additional electrodes will cost approximately €2500