The NPS series is a multi-functional slim sensor controller. Mountable on 35 mm (1.378 in) DIN rail, it reduces mounting space and mounting operations. It is useful for various applications because the controller has two outputs, relay contact and NPN open-collector transistor output. (NPS-C7 and NPS-CT7 only) Two sensors can be connected, and two independent outputs are generated. A synchronized input is possible at either the rising or the falling edge of the external synchronization signal. With this, now only one controller suffices where earlier two were required in applications, such as detecting presence of bottle caps.