The C.A.P. PPM-1c is an extremely accurate CO2 Monitor. It measures the exact level of CO2 in your growing area and displays this value from 0 to 5000 Parts-Per-Million (PPM) on its’ digital readout.
Even though the sensor can be used as a simple way to measure your CO2 level, the true potential of the PPM-1c is not realized until it is connected to one of the controllers C.A.P. has designed to work with it.
When the PPM-1c is connected to either the CO2-2, CO2-4 or CGC-1, it commands the controllers to release or produce more CO2 only when required.
The timers built into the atmosphere controllers continue to coordinate with the PPM-1c to give you the precision control not possible with other manufacturers CO2 control systems using only ON/OFF control.
You enter the exact level of CO2 you want to maintain (usually 1500 PPM) and you’re done.
Includes a 5-year manufacturer’s no hassle warranty. Made in the USA.
Instruction Manual – PDF format
When re-calibrating the PPM-1c do NOT breath on the unit. As you exhale, large concentrations of CO2 are expelled from your lungs. This higher level of CO2 will affect the calibration.