This is the 8ft sensor cable that ships with some of our products like the Motorman.  It has a 1.0mm JST SH connector on one end and three 28AWG wires - red, black, and white - for power, ground, and the sensor signal.   The other end of the cable is just loose wires, allowing them to be connected to terminal blocks or soldered into something.

It's designed for use with the TrainSpotter, TrainSpotter Right Angle, TrainSpotter Motion, and ATOM sensors into products that only need the red/black/white wires and attach to screw terminals, such as the Motorman, Squealer, and additional sensors for the RoadReady crossing modules.