Locate the environment sensor(s) in a clean and dry location where it will sample non-stagnant air. If you are utilizing the light sensor for sun sensing, ensure the light sensor has a clear path to the sun or light source. The Environment sensor is designed to be suspended with the light sensor facing up and hanging at canopy level using the power cord and eye hook. The environment sensor can also be mounted to a wall with wall-mounting hardware. Run power to the environment sensor with the included power extension cord and adapter.