Hanna pH Liquid 7.0 & 4.0 Testers Use 10ml per 182 litres

Use 10ml per 182 litres (40 gallons)

000 litres (4

It is ready to use straight from the box

this device automatically switches off the pump

Hanna pH Liquid 7.0 & 4.0 Testers Use 10ml per 182 litresThe pH 4. 01 & 7. 01 buffer solutions in quick and easy to use 20ml sachets are the most popular buffers used before analysing samples. Ideal for those requiring an accurate acid or neutral reading. The single dose sachets are really handy with each sealed sachet holding just the right amount of solution. Each time a meter or electrode is calibrated using the Hanna sachets, it is like using a newly opened bottle of solution. 5 x 20ml sachets of pH 4.