OPERATING INSTRUCTIONSOAKTON®35632-SeriesPortable WaterproofpH/Dissolved OxygenMeterpH/Dissolved Oxygen/°C/°F MeterpH/DO 300 SeriesWATERPROOFMODEHOLDENTERONOFFCALMEASstSETUPATCREADYMEASC%IP67NotesWrite down the name and information of your OAKTON distributor here.