freneci Aquarium Carbon Dioxide CO2 Monitor Crystal Glass Drop Checker Monitor - 2

Description: - 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. Specification: - Material: Glass - Size(LxWxDia): 50x35x10mm/1.97x1.38x0.39inch(1#); 80x40x10mm/3.15x1.57x0.39inch(2#) Package Includes: 1 Piece CO2 Concentration Detector Note: Due to the manual measurement and lighting effects, there is a slightdifference between the size and color from the above and the actualitem.