pH, conductivity & DO meters

pH, conductivity & DO meters are the core electrochemical instruments for water analysis, environmental monitoring, aquaculture, food production and laboratory QC, measuring acidity, ionic content and dissolved oxygen in liquids.

The 220 listings here are all from Apera Instruments and span meters, electrodes and consumable parts. Among them are the DO850 optical oxygen meter with its DO803 luminescent optical DO electrode and DO8032 replacement electrode cap, and the TN400 infrared turbidimeter for turbidity measurement alongside the electrochemical parameters. Spare electrodes and caps are listed separately so that an existing meter can be kept in service.

Start by deciding which parameters you measure most and whether the instrument lives on the bench or travels to site. Optical DO probes avoid the membrane and electrolyte maintenance of galvanic sensors, which suits routine field use. Replacement electrodes should match the meter model exactly. Ask us for a quotation or help choosing.