CO2 Tester Kit 

This inexpensive CO2 Tester Kit will help you to achieve optimum CO2 levels in your grow room, creating an increase in plant growth rate and yield. 

This CO2 Tester Kit gives you the exact PPM concentration of carbon dioxide in the room. It measures from 300-5000 PPM.

CO2 Test Kit includes:

One 100cc syringe
Two Rae Systems test tubes
Instructions

Replacement test tubes available in pack of 10.