pH electrode InLab Expert Pro Back Catalog number: 51343101 Availability: In the manufacturer's stock Price on request - + Recommended MA918B/1 Comb glass pH electrode 3 dia, DJ,refill, BNC, 1m Price on request HI1043B Refillable Double Junction pH Electrode Price on request MA812/2 Conductivity/TDS probe with 2meter cable(MC 310). Price on request