JBL Test CO2 and Plus PH Permanent
Through this JBL system you can continuously and permanently measure the CO2 and PH levels of your aquarium.
Easy to install and read, you can recharge the test with refills that last between 9 and 12 months.
Easily control the CO2 level knowing its optimal state between 20 and 25 mg/l.
You can measure the PH in values between 6.4 and 7.8º.
The use of this test is indicated for freshwater aquariums.