ADISM (InT, InHum, Light, CO2) - Link4 Corporation

 The ADISM sensor gives you monitoring control with a differential pressure to provide accurate readings for temperature, humidity, CO2, and solar light. Its intuitive programming allows for easy setup and even easier use on a day-to-day basis. Compatible with Link4’s iGrow 1800 Series, the ADISM is a powerful companion tool to monitor and control your greenhouse.

When you got an entire grow operation going, you cannot be watching everything at once. But you can have a sensor that can. Provide accurate readings for temperature, humidity, CO2, and solar light. Its intuitive programming makes it easy to set up and use on a day-to-day basis. 
 
Monitor temperature, humidity, CO2, and solar light. WITH SMALL JUNCTION BOX AND 3FT OF CABLE.