Fish Tank CO2 Diffuse Glass Drop Checker For Co2 Monitor glass drop checker PH Long Term Indicator Monitor Tester

Condition:100% Brand New,High Quality
Product: Aquarium CO2 Indicator
Materials:Borosilicate Glass
Model: Musical note/Ball/Water drop/Hook
For: Aquarium plants grass
Test solution capacity: 15ml
Size:As picture show
Package included:1 bottle x Indicator solution or 1 glass drop checker
Features
1. The change of the three colors of the detection fluid indicates the CO2 concentration of the fish tank.
2. The indicator made of glass is corrosion-resistant, simple and beautiful.
3. There are 4 types of glass drop checkers for you to choose.

Notes:
1.The test solution should be replaced once a month.
2. Please allowed 1-3mm differences due to manual measurement, thank you for your understanding!
3. Due to the difference between different monitors, please understand that the picture may not reflect the actual color of the item.