Hydro Axis pH Pen Meter

Hydro Axis pH Pen testers are easy to use and portable.
They are suitable for both hydroponic and aquarium users and come with a 6-month warranty.

Attention Valued Customer:

Ph testers and Ph probes are sensitive scientific equipment. They will require extra care and maintenance from the user (you) to ensure accurate readings, measurements and valid warranties.

These Ph testers (without replaceable probes) are electrical sensors and considered a consumable item. You should aim to be replacing these over time as you do media, nutrients,.

Probes must be kept in storage solution when not in use (in tank monitors excepted)

IF IT DRIES….IT DIES