Meters

Meters

  • Bluelab 4.0 pH Calibration Solution, 20 ml,

    $1.50
    Calibration and conductivity standard solutions... a must in every grower's toolbox. The Bluelab calibration and conductivity standard solutions are essential for use with all Bluelab products for the calibration of pH and testing the cleanliness of the...
  • Bluelab 7.0 pH Calibration Solution, 20 ml

    $1.50
    Calibration and conductivity standard solutions... a must in every grower's toolbox. The Bluelab calibration and conductivity standard solutions are essential for use with all Bluelab products for the calibration of pH and testing the cleanliness of the...
  • Hanna Instraments Checker Plus pH Tester

    Hanna Instraments Checker Plus pH Tester

    $58.99
    HI98100 Checker® Plus pH Tester The HI98100 Checker Plus is the next generation of the original Hanna Checker pH tester. The Checker is the most popular pH meter in the world with over 1 million meters used since its introduction in 1991. From...
  • Hanna Primo Tester EC & TDS

    $55.99
    Primo testers provide a fast and dependable way to measure the total dissolved solids or conductivity in your water samples. Each tester is ideally suited for the rigorous demands of water quality professionals. Many professionals use the...
  • HM Digital Waterproof PH Meter

    $99.95
    Measures pH and Temperature. Auto-ranging three point calibration with digital fine tuning. pH buffer 4 solution is in a sponge embedded in a clear cap. Measurement Range: 0-14 pH with a waterproof housing. Digital automatic calibration (one point), with...
  • HM EC/TDS Waterproof meter

    $76.95
    Measures electrical conductivity (EC), total dissolved solids (TDS) and temperature. Three different calibration options (KCl, 442TM, NaCl), each with its own non-linear conversion factor. Automatic Temperature Compensation (ATC) using three temperature...
  • HM Digital TDS Tester

    $28.50
    Ideal for commercial use. Includes a carrying case with belt clip. Highly efficient and accurate due to its advanced microprocessor technology. Hold Function: saves measurements for convenient reading and recording. Auto-off function: the meter shuts off...
  • Hydrion Litmus Paper

    $4.99
    Use pH tape to test your first morning urine to determine your acid/alkaline balance.   This is standard pH testing paper to give you a quick reading of how acid or alkaline your body tissues may be. To use just rip and dip! 
  • Luster Leaf Rapitest 4 way Analyzer

    $37.99
    Measures four different levels for Fertilizer Light Moisture pH   Includes instructions and guides for all four measuring levels. Instantly tells you the fertility of your soil. Instantly tells you how acid or alkaline your soil is by...
  • Milwaukee pH Tester w/ Calibration Fluid

    $25.00
    Milwaukee's most affordable pH tester, range: 0.0 to 14.0 pH, with one point manual calibration, and accuracy of ±0.2 pH. Battery Life: 700 hours. Calibration solution sold separately.
  • PH Electrode Storage Solution

    $7.95
    For use with HM Digital's PH-200 and PH-80 (as well as other brands of pH meters). Always make sure your sensor is kept in an electrode storage solution. If dry, refill the pH meter cap with the PH-STOR storage solution. The sponge should be moist (not...
  • PH600-Box Milwaukee Tester with buffer

    $27.50
    The pH600 is a pH tester can be used in many different applications and is considered an excellent starter unit for digital pH measurement. The calibration procedure is very simple and fast. This tester has 1 point manual calibration, ±0.1 pH...