Hydrofarm APCECO Analog CO2 Controller with Remote Probe, Grey
The APCECO offers indoor gardeners an economical & simple method of monitoring & controlling Co2 within the grow area. It utilizes a highly visible & intuitive LED indicator display to let you know generalized Co2 levels. The LED indicator will blink to show the ppm level in increments of 100 The 15' Remote Sensor allows versatile placement within the grow area.