Hanna pH Liquid 7.0 & 4.0 Testers simply dip the sensor into

simply dip the sensor into the water and read the result

It is ready to use straight from the box

000 litres (4

Superfish Zeolite can be used loose or contained within a filter bag

Maximum 16 amp rating

Hanna pH Liquid 7.0 & 4.0 Testers simply dip the sensor intoThe 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.