PC 2700 Meter With Probes Application pH measurement for drinking water food pools laboratory and pharmeceuticals auto buffer recognition Bidirectional RS-232 Cal-due alarms Electrode status oversized liquid display Password protection Takes up less bench space up to 500 point nonvolatile memory with time and date stamp For Use With OAKTON Conductivity probes and pH probes Includes AC adapter conductivity/temp probe electrode holder Meter pH electrode