Double Check CO2 Checker
Product code: 11001
Cal Aqua Labs’ “Double Check” series is the only all-glass dual-compartment CO2 checker that allows the user to accurately compare the CO2 level in your aquarium side-by-side against a standard reference. The top chamber holds the CO2 indicator solution, whereas the bottom chamber carries a CO2 reference solution. The reference solution color corresponds to 30 ppm of CO2 – a level that is widely accepted for good plant growth in most aquariums.
No more guessing on the shades of green. No more looking back-and-forth at color sheets to compare. You know the precise CO2 level simply by comparing the colors in the two compartments side-by-side. Don’t guess, be sure! It’s as simple as that.
Unique dual-compartment design. Inner compartment holds the Reference solution, while the outer compartment holds the Indicator solution
No solution preparation needed. Required solutions are premade and included
Improved durability and ease of use
Easy to fill and remove solutions from both chambers
Simple to use, simple to read, higher accuracy than other single-compartment checkers
Each set includes:
- 1 Double Check CO2 checker
- 1 x 15ml Reference solution, calibrated to 30ppm CO2
- 1 x 15ml Indicator solution
- 1 suction cup
- 2 Reference chamber plugs
- Use instructions
Approximate size without suction cup: 2″x 1.5″ (WxH)
Recommended for aquariums 20 gallons and larger.