[B#]

[A#]

100% brand new and high quality
Features:
Made of high quality materials!
Can be used with CO2 indicator.
Easy to use, convenient to detect CO2 concentration.
Suitable for all kinds of fish tanks.
A great solution for feeding fish and observing its living condition.
Different color of liquid is different in CO2 concentrations.
Blue means the concentration of CO2 is too low.
Green is normal.
Yellow means CO2 concentration is too high to cause harm to fish.
CO2 indicator solution liquid and detector only, other accessories demo in the picture is not included.

Specifications:
Material: Glass
Bottle height: app.7.7cm / 3.03in
Internal Package Size: app. 11.5 x 11.5 x 4cm / 4.53 x 4.53 x 1.57in
Net Weight: 15ml
Color: as picture
Quantity: 1 set


Note:

Please allow 0-1cm error due to manual measurement. pls make sure you dont mind before you value it.
Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!