The CAP PPM-4 is the newest addition to C.A.P.’s CO2 metering lineup, offering indoor gardeners the simplest method of monitoring and controlling CO2 dispersal throughout their growing area. Operating the PPM-4 is as easy as mounting the meter to the wall, plugging the meter into the power interface and plugging in your CO2 generator or regulator. The PPM-4 utilizes a highly visible and intuitive LED indicator display to let you know generalized CO2 levels at a glance from across the room. PPM-4 also features an easy to use calibration function.
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