BIOGENTS | Biogents CO2 Timer | PST-FLY-MOT-930-007BG CO2 timer " to reduce CO2 consumption. Reduce your CO2 costs: The BG CO2 Timer allows you to control when CO2 is released by establishing specific start and stop times. It enables you to set up two start and end times to release CO2 each day. Control the release of CO2 to coincide with times of mosquito activity Reduce of CO2 consumption up to 75% Extend the longevity of your CO2 bottle and decrease your costs One BG CO2 timer can manage several