SensorWorx SWX-843-12H-GY Interval Timer Switch - 1 / 2 / 4 / 8 / 12 Hours Increments - 120-277V - GraySensorWorx SWX 843 12H GY SWX 843 12H GY Product Description The SensorWorx interval timer switches provide an automatic lighting control solution that is intuitive to operate. Designed with contractors in mind, the unit is significantly shallower than typical timers, resulting in less crowded wall boxes. Additionally, versatile wiring enables usage with or without a neutral connection. For interval adjustment, raise and lower buttons are present in