... automatic temperature compensation.4.Keypad and Electrode Holder:The meter with waterproof panel,The ... solution splashing over the meter. The electrode holder can be used conveniently.5.Two Points ... Meter, pH electrode, pH buffers, Electrode holder, PoweradaptersMeter, pH electrode, pH buffers, Electrode holder, PoweradaptersMeter, pH electrode, pH buffers, Electrode holder, Poweradapters, Temperature ...