This product has been discontinued by the manufacturer. Please contact us for the closest replacement - 1.DPO10 Meter2.D201T-H Plastic ATC pH probe: 1pc3.pH buffer solution: pH4.00/7.00/10.01, 50mL, one for each4.DORP301 plastic ORP probe5.DTEMP-02H Stainless steel temp probe6.222mV ORP standard solution, 50mL, 1 bottle7.Charging cable: 1pc8.Hard carrying case: 1pc