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Calibration Solutions

Frequent, accurate pH meter calibration insures your plants will get maximum benefit from nutrient solutions at all times. Be confident that you’re getting dead-on accuracy with these professional-quality, easy-to-use reference solutions and buffers formulated for pH, EC and TDS readings. Electrode storage solution protects your investment between uses, keeping it from dehydration and significantly extending its life.

  • Bluelab Calibration Solutions

    pH Solution

    Made to a traceable standard to ensure accuracy of your valuable equipment.

    $12.95 $9.95
  • Electrode Storage Solution (HI 70300)

    Electrode Storage (HI70300)

    Prepared with reagent grade chemicals to ensure a fast and reliable measurement.

    $20.95 $17.95
  • pH 4.01 Calibration Solution

    pH 4 Buffer

    Easy to use and works with all the popular brands in the hydroponics market.

    $7.95 $5.95
  • pH 7.0 Calibration Solution

    pH 7 Buffer

    Made with the highest quality ingredients so you can work with peace of mind.

    $7.95 $5.95
  • TDS Calibration Solution

    1500 ppm NaCl

    Easy to use, just dip your electrode into a small amount of the liquid and adjust.

    $21.50 $16.95
  • pH Calibration Solution Packets

    Buffer Sachets (20mL)

    Available in convenient 20 ml packets, so they’re always fresh and easy-to-use!

    $1.50
  • Buffer Solution (HI 7007 & HI 7004)

    Buffers (HI7007, HI7004)

    Available in sealed 500mL bottles and standardized for incomparable accuracy.

    $19.95 $17.95
  • HANNA TDS Solution

    EC/ TDS Solutions

    Use to ensure maximum accuracy for conductivity probes and monitors.

    $16.50 $14.50
  • Electrode Cleaning Solution (HI 7061)

    Electrode Cleaner (HI7061)

    A simple 15-20 minute cleaning will ensure that your sensor is working correctly.

    $20.95 $17.95
  • Bluelab pH Probe KCl Storage Solution

    KCI Storage

    Designed to maintain performance and maximize the life of your probe.

    $12.95 $10.95
  • pH Probe Cleaning & Calibration Kit

    Probe Care Kit – pH

    Keep your probe clean! A dirty electrode will affect the accuracy of test results.

    $18.95 $15.95
  • Conductivity Probe Care Kit

    Probe Care Kit – PPM/ EC

    Your conductivity probe will show lower readings when contaminated or dirty.

    $12.95 $10.95