Replacement Electrode Testing Parameter mV pH Temperature pH Range 0 to 14 Tip Shape Bulb Operating Temp Range 32 Degrees to 122 Degrees F Body Material Polycarbonate Diameter 12mm Length 218 mm Cable Length 39 in Temp Sensor 0 Degrees to 100 Degrees C For Use With EC600 Conductivity Kit and DO700 Multifunction Water Quality Meter Extech PH300 pH/mV/Temperature Kit Shelf Life 1 yr Electrolyte KCL Recommended Use Liquids Includes Storage Bottle