Aquarium CO2 Carbon Dioxide Monitor Glass Drop Ball Tester Checker Tester PH Indicator

Describe: 100 new and high quality Material: glass Color: transparent Size: 40mm/60mm/70mm Package includes: 1Pc Carbon Dioxide Monitor Maintaining proper Carbon Dioxide (CO2) levels in the planted aquarium is one of the most important factors in the health of the planted aquarium ecosystem. High quality material, stable and durable. Useful tool for monitoring CO2 levels in the aquarium. Makes it easy to figure out the CO2 level in an anqurium. Use with CO2 PH Indicator(not included), long term monitor Co2 the color show :Blue - insufficient Co2,Green - sufficient Co2,Yellow - excess Co2. The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom's policies and EU Product Safety and Compliance laws.