PPM Monitor/Controller (PPM-3)ECONOMICAL CO2 PPM CONTROL! The PPM-3 Monitor/Controller from C.A.P. is the most affordable and simple CO2 controller available. Its' proven technology is very accurate at measuring levels of Carbon Dioxide in your growing area from 0 to 5000 ppm (Parts-Per-Million). Using the PPM-3 is quite simple. Just plug your CO2 device (CO2 valve or generator) into the “piggyback” cord and it will automatically maintain the CO2 level that you specify. The PPM-3 works with any make of CO2 valve or generator that has a 120 volt style plug. This unit can be combined with any temperature/exhaust controller. Rated for 1/2 amp. 3 year no hassle warranty.
 | Manufacturer's Product Information |  | | | 2007 MSRP Each $ | 489.95 |
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| Unit Weight | 4 |
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| Case Dimensions | 9 x 7 x 7 |
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