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Calibration Solutions

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Calibration Solutions

Have a pH, EC, or Nitrate meter running low on solutions? Find them here!


450 ppm NO3-N Standard, 6 - 14ml bottles

450 ppm NO3-N Standard, 6 - 14ml bottles

For use with Cardy Twin Nitrate Meter 

34 ppm NO3-N Standard, 6 - 14mL bottles

34 ppm NO3-N Standard, 6 - 14mL bottles

For use with Cardy Twin Nitrate Meter 

Soil K+ Kit w/30 Samples

Soil K+ Kit w/30 Samples

For use with Cardy Potassium K+ Meter 

Soil Na+ Kit W/30 Samples

Soil Na+ Kit W/30 Samples

For use with Cardy Potassium Na+ Meter 

150 PPM  K Standard DI Water

150 PPM K Standard DI Water

For use with Cardy Potassium K+ Meter 

2000 PPM K+ Standard DI Water

2000 PPM K+ Standard DI Water

For use with Cardy Potassium K+ Meter 

Refill Solutions-pH 4 & 7, 60 mL ea.

Refill Solutions-pH 4 & 7, 60 mL ea.

Refill solutions of pH 4 and 7. (2) 30mL of each solution. 

Conductivity Standard, 1.41 mS/cm, 250mL

Conductivity Standard, 1.41 mS/cm, 250mL

Conductivity Standard, 1.41 mS/cm, 250mL 

Conductivity Standard, 2.76 mS/cm, 250mL

Conductivity Standard, 2.76 mS/cm, 250mL

Conductivity Standard, 2.76 mS/cm, 250mL 

Cardy Twin EC Calibration Solution

Cardy Twin EC Calibration Solution

Cardy Twin EC Calibratin Solution, for Cardy Twin EC Meter 

Chlorine Standard

Chlorine Standard

Chlorine Standard. 1ppm - 3 ampules 

pH 4 Standard - 250mL

pH 4 Standard - 250mL

pH 4 Standard - 250mL 


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