The Pro-Leaf Multi-Function Environmental Controller, BECC-B2, offers full control of the indoor garden environmental, with four 240-volt receptacles for cooling, humidity, Co2 and heating devices. This advanced unit precisely monitors and manages co2 in a range of 400-2000 parts per million with an adjustable deadband. Featuring fuzzy-logic technology to provide even greater control in compressed co2 setups. The BECC-B2 regulates temperature in a control range of 5-50 degrees centigrade, and relative humidity in a range of 5-95 percent, both with adjustable deadbands. Photocell control allows for separate day and night settings of temperature and humidity. The BECC-B2 includes a remote sensor on a 4.5m cable with integrated photocell.