Controlling the Co2 in your growing enviroment has never been so easy
 
CO2 kits and systems are used to inject and monitor carbon dioxide into a grow room or greenhouse to encourage faster plant growth.
The average level of Cabon Dioxide in the Atmosphere is about 400 ppm. By increasing the ambient CO2 levels to 1500 ppm, CO2 enrichment systems greatly enhance the growth rate of plants. CO2 is an odourless and non-flammable gas that helps plants in all stages from seedlings through harvest.
The new CO2 Controller Neptune Hydroponics is self-calibrating and has an optimum operating range at 50C º 10/10 to 70% rh: this CO2 Controller allow you to monitor and adjust the Co2 quantity in the growing environment, thanks to its infrared sensor and the digital display: it adjust automatically the emission of Co2 for indoor plants in grow tent or grow room.
This highly accurate digital CO2 controller measures the carbon dioxide level in the grow room and automatically turns on and off the CO2 device to accurately keep the carbon dioxide ppm at the desired level. 
Controlling CO2 has never been easier or more affordable. This digital CO2 controller eliminates guesswork while it controls your carbon dioxide level with accuracy and efficiency. It works with both, CO2 generator or using bottled CO2 tanks, as well as with any other Co2 release system.
Features
CO2 Controller Neptune HydroponicsTechnical details 
With a maximum adjustable range of 1-10000 ppm.
Programmable to define the maximum and minimum.
Accuracy 40ppm.
Consumption 1.8W.
Wire lengths:
Sensor: 3,10 m.
Power output: 1,05 m.
Power input: 0,60 m.