The SmartBee Controllers LTH Pro sensor gives you control over Light, Temperature, Humidity, VPD, and CO2. With an optional Apogee PAR sensor, LTH Pro can provide PAR, PPFD (Photosynthetic Photon Flux Density) and DLI (Daily Light Integral) readings from your grow room, anywhere. Apogee Instruments’ quantum sensors provide accurate and cost-effective measurement of photosynthetically active radiation (PAR) from all light sources used to grow plants. The SmartBee LTH Pro Sensor is designed to allow better access to plant canopy readings, where placement is essential to monitor accurate levels of CO2. Should you employ a CO2 injection system for maximizing growth, The SmartBee LTH Pro Sensor will monitor that system by sampling the air and sending sample data to the Hive Gateway for data logging. With HID lights, the room temperature will quickly rise making temperature control essential. This limits the time that you are able to inject CO2 and also increases CO2 waste, which the SmartBee Control System minimizes by monitoring your CO2 system distribution. The data logging allows you to see how much CO2 is being evacuated out of your room based on your temperature fluctuations.