Monitors, Meters, & Controllers

Reverse Osmosis Systems can be upgraded in many ways and a couple of those upgrades are almost essential. TDS (Total Dissolved Solids) and Pressure gauges are found on a lot of RO Systems because they simply let you know how your RO/DI System is performing but also helps you troubleshoot any possible problems you may encounter. Ultimately we want the cleanest water we can get and a TDS meter will let you know in a whole number how many dissolved solids are in your water and if the number is higher than zero, it is a good sign that your DI Resin should be changed or a possible problem with your Reverse Osmosis Membrane.

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30 Items

  1. RO Water Controller - Tunze
    Tunze
    RO Water Controller - Tunze
    $234.99

    Earn 234 Reward Points

    $234.99
  2. Single Inline TDS meter SM-1 - HM Digital
    HM Digital
    Single Inline TDS meter SM-1 - HM Digital
    $24.99

    Earn 24 Reward Points

    $24.99
  3. Triple Inline TDS Meter TRM-1 - HM Digital
    HM Digital
    Triple Inline TDS Meter TRM-1 - HM Digital
    $44.99

    Earn 44 Reward Points

    $44.99
  4. Glycerin Filled Pressure Gauge 1-100 PSI - Bulk Reef Supply
    Bulk Reef Supply
    Glycerin Filled Pressure Gauge 1-100 PSI - Bulk Reef Supply
    $20.49

    Earn 200 Reward Points Earn 100 Reward Points

    $20.49
  5. Air Filled Pressure Gauge 1-100 PSI - Bulk Reef Supply
    Bulk Reef Supply
    Air Filled Pressure Gauge 1-100 PSI - Bulk Reef Supply
    $12.99

    Earn 120 Reward Points Earn 60 Reward Points

    $12.99
  6. Deluxe Dual Inline TDS Meter with Backlight DM-2 - HM Digital
    HM Digital
    Deluxe Dual Inline TDS Meter with Backlight DM-2 - HM Digital
    $45.99

    Earn 45 Reward Points

    $45.99
  7. DM-2EC Commercial Dual In-Line EC Monitor - HM Digital
    HM Digital
    DM-2EC Commercial Dual In-Line EC Monitor - HM Digital
    $59.95

    Earn 59 Reward Points

    $59.95
  8. Titanium One - Inline TDS Meter - AutoAqua
    AutoAqua
    Titanium One - Inline TDS Meter - AutoAqua
    $27.49

    Earn 27 Reward Points

    $27.49
  9. Titanium S1 - Single Inline TDS Meter - AutoAqua
    AutoAqua
    Titanium S1 - Single Inline TDS Meter - AutoAqua
    $24.99

    Earn 24 Reward Points

    $27.49
  10. Titanium S2 - Dual Inline TDS Meter - AutoAqua
    AutoAqua
    Titanium S2 - Dual Inline TDS Meter - AutoAqua
    $37.39

    Earn 37 Reward Points

    $37.39
  11. Titanium S3 - Triple Inline TDS Meter - AutoAqua
    AutoAqua
    Titanium S3 - Triple Inline TDS Meter - AutoAqua
    $49.49

    Earn 49 Reward Points

    $49.49
  12. FM-2: Filter Monitor with Volumizer - HM Digital
    HM Digital
    FM-2: Filter Monitor with Volumizer - HM Digital
    $39.99

    Earn 39 Reward Points

    $39.99
  13. Watchdog Leak Detection Alarm
    Glentronics
    Watchdog Leak Detection Alarm
    $15.99

    Earn 150 Reward Points Earn 75 Reward Points

    $15.99
  14. LBS-10 Leak Block Sensor & Solenoid Valve - HM Digital
    HM Digital
    LBS-10 Leak Block Sensor & Solenoid Valve - HM Digital
    $53.00

    Earn 53 Reward Points

    $53.00
  15. Hydros Rope Leak Sensor Extension -  Coralvue
    Coralvue
    Hydros Rope Leak Sensor Extension - Coralvue
    $29.99

    Earn 29 Reward Points

    $29.99
  16. Flow-lok Leak Detector for RODI Systems
    G.A. Murdock
    Flow-lok Leak Detector for RODI Systems
    $23.99

    Earn 230 Reward Points Earn 115 Reward Points

    $23.99
  17. Low Range pH/Conductivity/TDS Combo Pen HI98129 - Hanna
    Hanna Instruments
    Low Range pH/Conductivity/TDS Combo Pen HI98129 - Hanna
    $159.00

    Earn 159 Reward Points

    $159.00
  18. TDS-3 Handheld TDS Meter - HM Digital
    HM Digital
    TDS-3 Handheld TDS Meter - HM Digital
    $24.99

    Earn 24 Reward Points

    $24.99
  19. HI73127 Spare pH Electrode - Hanna Instruments
    Hanna Instruments
    HI73127 Spare pH Electrode - Hanna Instruments
    $54.00

    Earn 54 Reward Points

    $60.00
  20. PH-200 Waterproof pH Meter - HM Digital
    HM Digital
    PH-200 Waterproof pH Meter - HM Digital
    $79.99

    Earn 79 Reward Points

    $79.99
  21. COM-100 Waterproof EC/TDS Meter - HM Digital
    HM Digital
    COM-100 Waterproof EC/TDS Meter - HM Digital
    $76.95

    Earn 76 Reward Points

    $76.95
  22. TDS 342 Calibration Solution
    HM Digital
    TDS 342 Calibration Solution
    $7.99

    Earn 70 Reward Points Earn 35 Reward Points

    $7.99
  23. Replacement Flow-lok Leak Detector Pad
    G.A. Murdock
    Replacement Flow-lok Leak Detector Pad
    $5.49

    Earn 50 Reward Points Earn 25 Reward Points

    $5.49
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