This product has been discontinued by the manufacturer. Please contact us for the closest replacement - 1.DCD100T Meter2.DCON201TG Glass ATC Cond probe3.Standard Cond solution: 50mL: 84µS/1413µS/12.88mS/cm, one for each4.DDO01-2M DO probe, cable length: 2m5.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