The OSSMD provides automatic lighting control for two separate loads from a single unit. It is compatible with incandescent, fluorescent, low voltage lighting and fan loads. The unit features dual manual override switches that can be used to toggle the ON/off status of each lighting load while an area is occupied. The OSSMD can be installed in place of two single-pole wall switches and fits in a standard single gang wall box. The second relay is manual-on only and complies with California Title 20/24.