Serie 20 Value

APERA Instruments PH20 Value Pocket pH Tester Kit Simply the most reliable pocket pH tester with the best value for all kinds of routine testing, such as...

APERA Instruments EC20 Value Pocket Conductivity Tester Simply the most reliable pocket conductivity tester with the best value for all kinds of routine...

Simply the most reliable pocket conductivity tester with the best value for all kinds of routine testing, including tap water/drinking water testing,...

APERA Instruments Salt20 Value Salinity Pocket Tester is simply the most reliable pocket salinity tester with the best value for all kinds of regular...