... Single Pole 1.UL Occupancy Sensor 2.122-277 voltage UL Occupancy Sensor Wall Switch , Single Pole, 3-Way or More Applications, 180-Degree ... presentations. The unit replaces a single-pole wall switch and fits in the standard wall box. The unit requires a ground connection ... -OFF Mode SOUND-ON/OFF Mode UL Occupancy Sensor Wall Switch , Single Pole, 3-Way or More Applications, 180-Degree Field of View, ...