The E39-F32D 1M is an ambient light sensor manufactured by Omron that is designed for use in lighting control and other display applications. The device is capable of reading both visible and infrared light in order to accurately measure the ambient light levels in its environment. The device features a linear voltage output, a sensitivity driver, a 1 MHz communication rate and a wide operating temperature range of -20 to +65 °C. It can be used in a wide range of applications including brightness control, line of sight detection, display power control and energy conservations. Its compact size allows for easy integration into systems, making it a great choice for a variety of projects.