TrolMaster Carbon-X CO2 Alarm Station With LED Display Indicator CO2 Parts & Accessories Grow Room CO2 Environment

The AS-2 CO2 Alarm Station combines an audio-visual alarm module with a color-coded LED display indicator and a LCD digital ppm level reading. It is designed to be mounted outside of the space to be monitored, and will display the CO2 ppm level. The green LED indicator shows the CO2 level is below 800ppm which means the room is safe to entry. The yellow LED indicator shows CO2 level equal or above 800ppm which means supplemental CO2 is in use. Color-coded LED display indicator LED digital reading Plug & Go