Active Air-Timer reflective-and-greenhouse-films Milwaukee pH & Temperature Monitor

Milwaukee pH & Temperature Monitor with Wifi

Digital Sugar Refractometer for general purpose with automatic temperature compensation (ATC)

The support strings pull out and retract like a yo-yo

and IP66 rated for use in wet environments with a maximum ambient operating temperature of 40°C

Offers silent operation

Active Air-Timer reflective-and-greenhouse-films Milwaukee pH & Temperature MonitorDeliver growth boosting CO2 with our user friendly, easy to operate system. With its programmable timer, it will automatically maintain ideal CO2 levels for optimum growth. For small to medium size areas, select the COSYS; for larger than 10' x 10' areas, select the COSYS20. To use Hydrofarm's CO2 Flow Rate Calculator, click HERE NOTE: Current COSYS & COSYS20 now come equipped with a black rubber O ring that has replaced the white plastic washer.