pH, Conductivity | Equipment & Auction Search Hanna Instruments HI98129 Low Range pH/Conductivity/TDS Tester 0 bids $25.00 USD Bluelab BP1-1111-0736 pH Pen With Blue lab Probe Care Kit And Conductivity Pen 1 bids $75.00 USD Bluelab Combo Meter for pH, Temperature, and Conductivity 0 bids $100.00 USD Bluelab MONGUA Guardian Monitor for pH, Temperature, and Conductivity (TDS) 0 bids $250.00 USD Large complete vertical garden with automated hydroponic controller 0 bids $700.00 USD Emerson Rosemount 5081-T-HT-67 Wire Conductivity Transmitter with probe/wiring 0 bids $1,700.00 USD Rosemount 1057 pH/ORP 1057-02-20-30-40-UL Liquid Multi-Parameter Analyzer 0 bids $2,450.00 USD Create an auction ad and attract more bidders to your sale Get Started