pH Electrode ORION ROSS SURE-FLOW GLASS PH WATERPROOF BNC Testing Parameter pH Measurement Range 0-14 pH Range 0-14 Tip Shape Standard Operating Temp Range 0 Degrees to 100 Degrees C Body Material Glass Diameter 12mm Length 120 mm Cable Length 1 m Connector BNC Amplifier none Temp Sensor No Max Pressure Atmospheric For Use With Any Meter with BNC Input Shelf Life 36 mo from manufacture Reference Ross Junction Double Sure-Flow Electrolyte KCl 3M Recommended Use All