Extech Instruments 4pH Buffer Solution (2x Bottles)

Pint size bottles with 4pH buffer solution. Easy to use, already made fresh pH buffers for calibration Helpful table shows what the pH value should be vs. the temperature of the buffer solution measured Rinsing solution used for cleaning off the pH electrode after taking the next measurement from a different solution to prevent contamination Convenient pouch eliminates the need for a cup to store buffer or rinsing solution Convenient pint size conductivity standards calibrate your conductivity meter to optimise its accuracy