This product has been discontinued by the manufacturer. Please contact us for the closest replacement - 1.DPD100T Meter2.D201G Refillable glass pH probe: 1pc3.DTemp-01 Stainless steel probe: 1pc4.pH buffer solution: pH4.00/7.00/10.01, 50mL, one for each5.DDOS-01 Membrane refill solution: 30mL,1pc6.DDOSC Sensor caps: 3pcs/group, 1pkg7.DF01 Flexible probe holder: 1pc8.Magnetic stirrer: 1pc9.PC cable: 1pc10.DA01 Power adaptor