Description:

Aquarium CO2 Monitor Carbon Dioxide Glass Drop Checker.

Different color of liquid represents different concentration of CO2.

BLUE means that CO2's concentration is too low. GREEN means it is normal. YELLOW means that CO2's concentration is too high, excessive CO2 may cause shrimp to die of oxygen deficiency.

Concealed glass groove is easy to open and fill into liquid.

Note: Liquid is not included.

Specification:

Material: Glass

Liquid: 15ml

Suitable For: Long-term CO2 monitoring

Size: 115x115x40mm / 4.53x4.53x1.57inch

Package Includes:(2 Pack)

1 Piece Glass CO2 Monitor