pH electrode InLab Expert Pro Back Catalog number: 51343101 Availability: In the manufacturer's stock Price on request - + Recommended PC-5000-1177 1/4" ID Peristaltic Pump Santoprene Tubing (TPE55S Price on request MI59P EC/TDS/Temp probe for EC59 and EC60 Price on request MC720 MC720 Controller kit Price on request