Stable holder made of transparent acrylic glass for the secure attachment of 2 electrodes (e.g. pH, redox, temp.) in your aquarium!
All electrodes up to 18 mm diameter can be used in the AQUA-NOA Acryl Profi 3 for 2 electrodes.
Can be adapted to different water levels due to the combined height adjustment/basin edge holder. The holder and electrodes are fixed with the plastic screws supplied.