EXTECH PH103( BUFFER SOLUTION, 20PK INCLUDE PH 4, 7, 10, RINCE)

Easy to use, already made fresh pH buffers for calibration
6ea. of 4, 7, 10pH plus 2 Rinsing solutions
Helpful table printed on the pouch shows what the pH value should be vs. the temperature of the buffer solution measured
Rinsing solution for cleaning the electrode before taking the next measurement to prevent contamination
Convenient pouch eliminates the need for a cup to store buffer or rinsing solution