Use our CO2 detector to ensure your carbon dioxide setup is performing at it's best. This handy device gives you clear and accurate readings in ppm. It has a green backlight meaning it will not interfere with the light cycles in your grow room and a working range of 400-5000ppm. This meter is particularly useful for those using alternative means of CO2 supplementation to the gas bottle setup, such as the TNB Enhancer or Mother Nature Generators. These types of product have a useable lifespan and cannot be controlled via a regulator or doser, meaning it is therefore very important to monitor the levels in your room so you are able to adjust or renew as needed. For best results place at canopy level, above your CO2 injection point but below your ventilation setup.