Calayu CO2 Drop Checker Test Long Term Monitor with Suction Cup 15ml Fluid Aquarium Equipment

BEST HELPER: This is an important instrument for monitoring CO2 levels in an aquarium. Display color: If the CO2 content in the aquarium is not enough, blue will be displayed. If this is normal, green will be displayed, and yellow means CO2 surplus. Channel Thickening Design: The wide channel design facilitates the addition of the detection fluid, facilitates the diffusion of air molecules and shortens the response time of the detection fluid. STRONG SUCTION CUP - Extra strong suction cup holds the continuous test firmly on the window. Glass material: clear, perfectly shaped glass, as used in laboratory equipment, makes long-term test a real eye-catcher., Weight: 0.110231131 Pounds, Manufacturer: Calayu