pH Electrode, pH Electrode, Testing Parameter pH, Measurement Range 0 to 13 pH, Tip Shape Round, Operating Temp. Range 32 Degrees to 140 Degrees C, Body Material PVC, Diameter 9.4 mm, Length 130 mm, Cable Length 1 m, Connector BNC, Amplifier Not Applicable, For Use With R3000SD, Standards CE, Shelf Life 18 mo, Reference Ag/AgCl, Single, Junction Single, Manufacturers Warranty Length 12 Months