Top Conductivity Calibration Standards

Extech DO700 Portable Dissolved Oxygen Meter

  • Measures dissolved oxygen concentration/saturation, pH, mV, conductivity, TDS, salinity, resistivity and temperature.
  • Automatic salinity compensation and manual barometric pressure compensation for DO measurements.
  • One button pH calibration (4, 7, and 10pH).
  • Choice of 3 point pH calibration for better accuracy.
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Bluelab METCOMPLUS Combo Meter PLUS for pH, Temperature, and Conductivity in Water and Soil with Easy Calibration, Digital Nutrient (TDS) Testing Kit for Hydroponic System and Indoor Plant Grow

  • Monitor 3 parameters in water and soil: Conductivity (TDS) level to ensure plants get the balanced feed, pH up and down, and temperature with lab quality glass probe.
  • Gereral uses include growing tent, swimming pool, drinking water, and aquarium.
  • This hydroponics meter has ATC that provides consistent reading regardless of any fluctuations in temperature.
  • Leap pH probe works in multiple growing environments.
  • Conductivity scales include EC, PPM, and CF.
  • Combine with Bluelab pen, tester, monitor and controllers for full indoor garden nutrients monitoring in water and soil.
  • pH probe requires easy two point calibration.
  • Conductivity / temperature probe are factory calibrated and ready for use.
  • Other features: Auto off function, low battery indicator, units for temperature.
  • KIT INCLUDES: AAA batteries, ph probe storage cap, and calibration solution, probe care kit is sold separately.
  • Made in New Zealand and manufactured by Bluelab, the industry leader in hydroponic testing equipment, built for growers.
  • 5-Year Limited Warranty with proof of purchase (6-month warranty for probes).
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Oakton AO-00653-18 Oakton Conductivity and TDS Standard, 1413 Μs; 500 mL

  • Description: conductivity and tds standard, 1413 µs.
  • Conductivity-to-tds calibration values (ppmnacl): 702.1.
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SeedRanch Falcon IV Turf Type Tall Fescue Grass Seeds - 50 lbs.

  • Monitor pH up and down, temperature, nutrient (TDS) level in water to maximize your grow and ensure plants get a balanced feed.
  • General uses includes growing tent and reservoir.
  • Selectable conductivity units include TDS, EC, ppm 500, ppm 700 and CF.
  • This hydroponics tester has ATC that provides consistent reading regardless of any fluctuations in temperature.
  • High and low alarm when outside parameters, selectable units include TDS, EC, ppm 500, ppm 700 and CF.
  • Lab quality glass pH probe with easy two point calibration.
  • Conductivity / temperature probe comes factory calibrated so it's ready to be used.
  • Double junction probe is more accurate than test strips and drops.
  • Combine with Bluelab pen and meter for full garden nutrients monitoring in water and soil.
  • Other features: International power supply, water resistant design.
  • KIT INCLUDES: Calibration solution, EC probe and pH probe, probe care kit is sold separately.
  • Made in New Zealand and manufactured by Bluelab, the industry leader in hydroponic testing equipment, built for growers.
  • 2-Year Limited Warranty with proof of purch....
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HM Digital 1000ppm TDS Calibration Solution

  • For optimal performance, re-calibrate your meters periodically or if testing TDS or conductivity levels in wide or different ranges.
  • Comes in lightweight HDPE plastic bottles.
  • Laboratory quality NIST-traceable solutions.
  • Any brand TDS meter can be calibrated to any brand of calibration solution.
  • Bottles have a convenient wide mouth, allowing a user to simply insert the meter into a stable bottle.
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HORIBA 100-7 pH 7 Standard Solution +/- 0.02 pH (pH 6.8 at 25° C) - 500mL Bottle, Made in Japan

  • Description: conductivity calibration standard, 100,000 µS.
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RaeSung AZ86031 Water Quality Meter Dissolved Oxygen Tester pH Meter pH Conductivity Salinity Temperature Meter

  • AZ86031 Handheld IP67 Combo PH/COND./SALT/TDS/D.O was being designed and manufactured by AZ Instrument, a well experienced manufacturer for Environmental Measuring Instrument..
  • Water Quality Meter, also been called as Water Testing Device or Water Quality Testing Device, it’s the device that measure the value of pH, Cond. (Conductivity), Salinity, TDS and D.O. (Dissolved Oxygen) in liquid, which had been widely used by Aquaculture, Aquaponics or Fish Farm..
  • Multiple points calibration: 3 points for pH, 1point for D.O.,4 points for conductivity..
  • Large LCD with multiple parameters display simultaneously..
  • pH, Conductivity or Salinity or TDS, Dissolved oxygen & Temperature..
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ZLYCZW 3 in 1 Multifunctional Water Quality Detector IP67 Handheld PH Meter Dissolved Oxygen/Conductivity/Salinity Test Dissolved Oxygen Meter

  • ★ Water Quality Meter, also been called as Water Testing Device or Water Quality Testing Device, it’s the device that measure the value of pH,....
  • ★ Conductivity, Salinity, TDS and D.O. Dissolved Oxygen in liquid, which had been widely used by Aquaculture, Aquaponics or Fish Farm..
  • ★ Handheld IP67 Combo PH/COND./SALT/TDS/D.O was being designed and manufactured by well experienced manufacturer for Environmental Measuring....
  • ★ Large LCD with multiple parameters display simultaneously: PH, Conductivity or Salinity or TDS, Dissolved oxygen & Temperature..
  • ★ Multiple points calibration: 3 points for pH, 1point for D.O.,4 points for conductivity..
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Bluelab MONGUACONIN Guardian Monitor Connect In-line for pH, Temperature, and Conductivity Measures, Easy Calibration and Data Logging (Connect Stick not Included)

  • Monitor pH up and down, temperature, nutrient (TDS) level in water to maximize your grow and ensure plants get a balanced feed.
  • General uses includes growing tent and reservoir.
  • Selectable conductivity units include TDS, EC, ppm 500, ppm 700 and CF.
  • This hydroponics tester has ATC that provides consistent reading regardless of any fluctuations in temperature.
  • High and low alarm when outside parameters.
  • Data logging with Bluelab Connect software.
  • Lab quality glass pH probe with easy two point calibration.
  • Conductivity / temperature probe comes factory calibrated so it's ready to be used.
  • Double junction probe is more accurate than test strips and drops.
  • Combine with Bluelab pen and meter for full garden nutrients monitoring in soil.
  • Other features: International power supply, water resistant design.
  • KIT INCLUDES: Calibration solution and inline probes, probe care kit and connect stick sold separately.
  • Made in New Zealand and manufactured by Bluelab, the industry leader in hydroponic testing equipment, built for growers.
  • 2-Year Limited Warranty with proof of purchase (6-month warranty for pH probe).
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PH Meter Digital TDS Meter EC & Temperature Test Meter 4 in 1 Set, 0.01 High Accuracy PH Tester Pen Water Quality Tester for Household Drinking, Pool and Aquarium

  • 【Multifunction PH Meters Suit】 with TDS PH EC temperature accuracy, faster for aquariums, pools, spas,etc..
  • 【To calibrate the pH Tester】 Calibration does not require a screwdriver. The pH meter with ATC can automatically calibrate. To maximize convenience, simply press the Calibration key.
  • 【High accuracy】The numbers of the pH meter range from 0.00-14.00 (PH), while the numbers of the digital EC and TDS meters range from 0 to 19990 ppm. PH Resolution is 0.01pH, Accuracy ± 0.05pH.TDS: 0 ~ 9990ppm, Conductivity: 0 ~ 9990us / cm, Accuracy: ± 2%.
  • 【TDS have lock & auto-shut off function】 Conductivity meter has the accuracy of 0.1 ℃. Dump the item about 4 seconds in the liquid to get accurate values. In order to record the number, you can also Press the HOLD keyboard.
  • 【LCD Display】The LCD clearly displays the data and the LCD backlight turns off automatically. Small and easy to carry. 365 days for a worry-free return service.
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pH Meter, 3-in-1 TDS Temp pH Tester 0.01 High Precision Water Quality Tester, pH Measurement Range with 0-14, Digital pH Meter for Household Drinking, Pool and Aquarium

  • Monitor pH up and down, temperature, nutrient (TDS) level in water to maximize your grow and ensure plants get a balanced feed.
  • General uses includes growing tent and reservoir.
  • Selectable conductivity units include TDS, EC, ppm 500, ppm 700 and CF.
  • This hydroponics tester has ATC that provides consistent reading regardless of any fluctuations in temperature.
  • High and low alarm when outside parameters, selectable units include TDS, EC, ppm 500, ppm 700 and CF.
  • Lab quality glass pH probe with easy two point calibration.
  • Conductivity / temperature probe comes factory calibrated so it's ready to be used.
  • Double junction probe is more accurate than test strips and drops.
  • Combine with Bluelab pen and meter for full garden nutrients monitoring in water and soil.
  • Other features: International power supply, water resistant design.
  • KIT INCLUDES: Calibration solution, EC probe and pH probe, probe care kit is sold separately.
  • Made in New Zealand and manufactured by Bluelab, the industry leader in hydroponic testing equipment, built for growers.
  • 2-Year Limited Warranty with proof of purchase (6-month warranty for pH probe).
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Bluelab MONGUA Guardian Monitor for pH, Temperature, and Conductivity (TDS) Measurements in Water with Easy Calibration, 3 in 1 Digital Nutrient Meter for Hydroponic System and Indoor Plant Grow White

  • Monitor pH up and down, temperature, nutrient (TDS) level in water to maximize your grow and ensure plants get a balanced feed.
  • General uses includes growing tent and reservoir.
  • Selectable conductivity units include TDS, EC, ppm 500, ppm 700 and CF.
  • This hydroponics tester has ATC that provides consistent reading regardless of any fluctuations in temperature.
  • High and low alarm when outside parameters, selectable units include TDS, EC, ppm 500, ppm 700 and CF.
  • Lab quality glass pH probe with easy two point calibration.
  • Conductivity / temperature probe comes factory calibrated so it's ready to be used.
  • Double junction probe is more accurate than test strips and drops.
  • Combine with Bluelab pen and meter for full garden nutrients monitoring in water and soil.
  • Other features: International power supply, water resistant design.
  • KIT INCLUDES: Calibration solution, EC probe and pH probe, probe care kit is sold separately.
  • Made in New Zealand and manufactured by Bluelab, the industry leader in hydroponic testing equipment, built for growers.
  • 2-Year Limited Warranty with proof of purchase (6-month warranty for pH probe).
Check Stock