Electrode pH Waterproof Testing Parameter pH Measurement Range 0-14 pH Range 0-14 Tip Shape Standard Operating Temp Range 0 Degrees to 80 Degrees C Body Material Epoxy Diameter 12mm Length 120 mm Cable Length 1 m Connector BNC Amplifier none Temp Sensor No Max Pressure Atmospheric For Use With Any pH Meter with BNC Input Shelf Life 36 mo from manufacture Reference Ag/AgCl Junction Double Wick Electrolyte KCl 3M Recommended Use Protiens