JBL CO2 / pH Permanent Test Set

• Continuous direct measurement of CO2 and pH
• New: special indicator instead of aquarium water allows for a direct measurement of the CO2 concentration in mg / l.
• Optimal is 20-25 mg / l CO2.
• Only every 3–4 weeks indicator = Change holds a total of 9-12 months.
• Content for 50 measurements

Displays next to the CO2 content and the pH value ( 6,4 - 7,8 ).