Features:
     • Easy to use, already made fresh pH buffers for calibration 
     • Helpful table printed on the pouch shows what the pH
       value should be vs. the temperature of the buffer solution  
     • Rinsing solution used for cleaning off the pH electrode after
       taking the next measurement from a different solution to 
       prevent contamination 
     • Convenient 20 mL pouch eliminates the need for a 
       cup to store buffer or rinsing solution 
     • Includes 6 Paks of 4, 7, 10 pH Buffers, 2 Rinse Solutions