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1288 Review
69 Karma

Review on Nynelly Buffer Solution Precise Calibration Test, Measure & Inspect by Darryl Blumenthal

Revainrating 5 out of 5

Calibrates PH Pen Well

Use these to calibrate one of the cheap yellow PH pens shown here. I used to buy a new Ph Pen every growth streak, but now I can just calibrate it and save money in the long run.

Pros
  • Lab & Science Products
Cons
  • High Price