Dr. Bridge

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  1. KH Guardian Testing Chamber with AC Motor and Sensor
    $39.99
  2. KH Guardian Reagent
    $34.99
  3. KHG Check Valve with 500 micron Filter
    $1.99
  4. pH Probe for KH Guardian

    Starting at $49.99

  5. Advanced Interface Module (AIM)
  6. Dosing Pump Tubing
    $2.00
  7. PINPOINT pH High Precision Calibration Fluid

    Starting at $0.99

  8. Dosing Head Pharm Tube (5.5")
    $3.50
  9. KH Guardian Power Supply
    $39.99
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Dr. Bridge

Dr. Bridge KH Guardian uses medical-grade sensing and dosing equipment to monitor your reef tank’s KH level. Rather than testing once a day or when you have time, the KH Guardian does all the testing for you.

The device tests the aquarium water and compares the results to your desired KH set-point. The device then calculates how much bicarbonate to dose to maintain the carbonate hardness in the aquarium. The KH Guardian can be set to test the water every 30 minutes if desired.

The KH Guardian can be connected to most third-party controllers.