Autopilot 15' Extension Probe Sensor Cable for APCECOTH and APCECOD beneficial microbes You can plug the trigger

You can plug the trigger cable into a standard 24-hour timer or environmental controller

A post polishing de-ionization filter that removes any remaining PPM down to zero

Choose from six different 100-foot sizes

The Autopilot PPM-5 CO2 Controller is a simple and affordable way to control your CO2 injection device

Autopilot 15' Extension Probe Sensor Cable for APCECOTH and APCECOD beneficial microbes You can plug the trigger15' Extension Probe Sensor Cable for the Greenhouse Master Controller and the Digital CO2 Controller. Extension cable is compatible with the following Autopilot models ONLY: APCECOTH, APCECOD, APE2200, APE3100, APE4100 and APE4200