AC/DC Power photo sensors were developed to make use of the available power and the majority of models are self-switching between AC and DC as well as self-regulating from 24 VDC to 240 VAC. These units provide form 1C relay outputs and many can be used as direct inputs to control many mechanisms. Advanced circuitry allows for detection distances for up to 30 meters without the use of laser components. AC power allows for a wide range of applications such as car washes, exposed vehicle detection systems, conveyor detection in unusual environments such as frozen fish. This group comprises the most process flexible of all groups.