Comprising of HI-2020-02 edge meter complete with the following electrodes: HI-11310 pH electrode, HI-763100 conductivity probe, HI-764080 dissolved oxygen electrode also 2 x sachets of HI-70004, 2 x sachets of HI-70007, 2 x sachets of HI-70010, 2 x HI-70031, 2 x HI-70030, 1 x HI-7041S