Meters & Solutions

pH 4 Calibration solution.
pH Buffer #4
  • $4.00
pH 7 Calibration solution. Dip probe into solution to calibrate. Always follow manufacturer's instructions.
pH Buffer #7
  • $4.00
pH/EC probe storage solution. Safe for all models. Clean the probe then store it in this solution between each use.
Storage Solution
  • $10.00
Electrode Cleaner
  • $10.00
EC Conductivity solution. Check EC/ TDS probes by dipping them into this solution.
14.13mS/cm EC Conductivity Solution
  • $10.00
For pH adjustment. Used to raise pH in water or nutrient solution. It contains silica which is beneficial to plants.
Potassium Silicate
  • From $11.95
Potassium hydroxide. Raises the pH of water. Safe for use with all plants in hydro, coco, and soil media.
pH Raise
  • From $6.00
85% phosphoric acid. Lowers the pH of water. Safe for use with all plants in hydro, coco, and soil media.
pH Down
  • From $6.00
Bluelab pH Probe KCl Storage Solution is a storage solution designed specifically for use with Bluelab pH Pens or pH Probes. Storage solution is used to ensure a pH probe is kept in ideal conditions during storage, while the probe is not in use.
Bluelab KCI Storage Solution
  • From $16.55
Bluelab pH 4.0 Calibration Solution
  • $16.55
Bluelab pH 7.0 calibration solutions
  • $16.55
Bluelab pH Pen. Plants get their nutrient from minerals but they can only get all the right minerals they need if certain conditions are right.
Bluelab pH Pen
  • $117.00
Bluelab Combo Meter. The Bluelab Combo Meter is a portable pH, conductivity and temperature meter all in one.
Bluelab Combo Meter
  • $290.00
Bluelab pH Probe. The Bluelab pH Probe is a replacement pH probe (electrode) suitable for use with Bluelab products that test the pH value of a solution.
Bluelab pH Probe
  • $83.00
Bluelab Truncheon Nutrient Meter
Bluelab Truncheon Nutrient Meter
  • $152.95
The Hanna Instruments HI 9813-6 Portable pH/EC/TDS/Temperature Meter with CAL Check Feature is a versatile, water resistant, multipara meter portable instrument specifically designed for agricultural applications such as hydroponics, greenhouses, farming and nurseries
Hanna PH/EC/TDS/TEMP H19813-6 with Cal-Check Feature
  • $245.00
Alfred’s pH Test Strips are quick, easy, and reliable!  Don’t take any chances, no other nutrient solution characteristic is more important for healthy plants. Without the correct acidity/alkalinity, the ability of your plants roots to uptake critical nutrients is severely limited.  Simply dip the testing zone of the litmus strip in a sample of water or nutrient solution, hold for 3-5 seconds, and you’re done. Now remove the testing strip from the solution, and match its’ color to the pH Range Color Chart.
Alfred pH Test Strips
  • $8.00
Quick Check TDS Tester  Range 0.00 ~ 1999ppm (mg/L) Resolution 1ppm (mg/L) Accuracy ± 2% F.S.  ATC  0°C ~ 50°C  Environment 0°C ~ 50°C Dimensions 151 x 33 x 20 mm  Weight 53 g Batteries  4 ×1.5V (AG-13)
Nutri+ TDS Quickcheck Tester
  • $30.75