SIPAN 32 ANALYZER TWO-WIRE SYSTEM FOR PH OR ORP MEASUREMENT; SINGLE MEASUREMENT 1 X PH OR 1 X ORP, MEMBRANE KEYBOARD WITH LCD, MENU-BASED OPERATION, LOGBOOK, CONCENTRATION DISPLAY, TEMPERATURE COMPENSATION, DIAGNOSTIC SOFTWARE, MICROPROCESSOR CONTROLLED MANUAL ON CD (5 LANGUAGES), POWER SUPPLY: DC 24 V IN FIELD HOUSING