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Hydroponics Supply

    This revolutionary EC meter is powered by a magnet instead of a battery! A gentle shaking action
    generates the energy to power this simple, yet sophisticated meter. With just a few easy steps you will get
    a quick & accurate reading of the electrical conductivity (EC) of your nutrient solution. This patented
    meter will completely simplify your growing experience and success.

  • Green LED display.
  • No batteries required.
  • Factory calibrated.
  • Automatic temperature compensation.
  • Automatic on/off function.
  • Waterproof.
  • 1 year warranty
EC Shake Nutrient Meter

    Now with the 4 most popular scales: EC, CF, 500:1 ppm, and 700:1 ppm! The E.C. Dipstick™
    dissolved salts pen operates on 3 common inexpensive AA alkaline batteries. Measures in PPM, EC and
    CF scales. There is no calibration required. It calibrates itself each time you replace the batteries. The
    EC Dipstick™ is waterproof to one meter. 2 year limited warranty
E.C. Dipstick

    The lighted display is large and easy to read. There are no mistakes when the temperature compensating
    microchip quickly senses the electro conductivity of the nutrient solution or water sample and
    automatically freezes the displayed reading. PPM, EC and CF scales are easily accessed by easy to read
    buttons. Cutting edge electronic circuitry keeps the meter in calibration for extended periods of time.
    The TDS Wand is waterproof from the electrode up to the display, water resistant from the display to
    the battery cap. Uses a common 9-volt alkaline battery for power. Use 1382 ppm (500 ppm – 1 EC)
    calibration buffer. 1 year limited warranty
TDS Wand

    The 24-7 Nutrient Meter from Control Wizard Products is a great all around meter for nutrient
    applications needing constant monitoring. It measures PPM, pH and Temperature and with its large
    illuminated display it is easy to read from a distance. Calibration screws are conveniently located on the
    front for easy access. 6 month limited warranty
24-7 Nutrient Monitor

    In just one glance it measures all three critical parameters for successful growth pH, conductivity and

  • Adjustable brightness display.
  • Large easy to read, Plant Safe green LED displays.
  • Selectable values for conductivity and temperature.
  • Simple push button pH calibration system.
  • No calibration required for conductivity and temperature.
  • Silent alarm for both high and low settings.
  • Settings retained when power lost (non-volatile memory).
  • Temperature compensation.
  • An international power supply.
  • Water resistant design.
  • 2 year warranty (6 months on probe).
Bluelab Guardian Monitor

    The MW802 is a compact portable meter with faster micro processor. This meter allows you to
    measure pH, EC and TDS with just one instrument and one single probe! This easier and faster to
    calibrate portable meter has a smaller, ergonomic and lighter case design. Also has 100% larger and
    easier to read LED Display and long battery life. It calibrates manually in pH, Conductivity and TDS.
    Range: 0.00 to 14.00 pH, 0 - 4000 ppm, 0.00 - 6.00 mS/cm, accuracy of ±0.20 pH and ±2% full scale
    for EC and TDS. Supplied with a MA850 combination electrode, 9v battery, 20ml packet buffer
    solution of pH 7.01, 1500 ppm and 1413 !S/cm.
Smart pH/EC/TDS Combo. Meter Model MW802
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    Great for water, laboratory or plant use, this multi Testr features single-junction pH electrodes for longer
    life and wider range of sample compatibility. Pin-style conductivity sensors feature stainless steel
    electrodes for chemical resistance and durability. Replaceable sensor module saves you money by
    reusing the meter body. Advanced features include auto-shutoff, user-adjustable temperature coefficient,
    self-adjusting TDS, and low-battery indicator.

  • One pocket sized meter for pH, TDS and temperature!
  • Up to 5 point pH calibration with NIST or USA auto buffer recognition.
Oakton Multi PT Testr 35

    New OAKTON ECOTestr TDS Low pocket meter features a large ergonomically designed display so
    that you can easily view measurements at a glance. The stainless steel electrodes are both rugged and
    chemical resistant, for use in a variety of applications. Other features include ATC (Automatic
    Temperature Compensation), Hold Function, it is completely waterproof, and has a transparent plastic
    cap that can be used as a container for calibration or measurement purposes.

  • Range: 0-1990 ppm.
  • Resolution: 10 ppm.
  • Accuracy: 1% Full Scale.
  • Conversion Factor: 0.4 to 1
Oakton Ecotestr TDS Low
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EC Shake Nutrient Meter
Control Wizard E.C. Dipstick
TS Wand
24-7 Nutrient Monitor
24-7 pH Replacement Probe
PPM Replacement Probe
Bluelab Guardian Monitor
Multi PT Testr 35 (pH/TDS/Temp)
Waterproof EcoTestr TDS Low
SM802 smart pH/EC/TDS combination meter