JBL Refill CO2/pH permanent
Simple and reliable monitoring of the aquarium water values.
Permanent direct measurement of the pH value and carbon dioxide content in freshwater aquariums
Permanent test for fertiliser control: place reagent in the permanent test device and attach to the aquarium pane, using suction cups. Compare reagent colour with colour scale sticker and read off value
Indication of pH value (6.4 – 7.8) and CO2 content