Train Crossing Detection Sensor Board for Railroad Tracks N/HO TenaControls

Lighting kit, made in USA!
This unit is completely assembled and tested. All you have to do connect the voltage source to power up the board. The voltage source can be either AC or DC, 8 (minimum) to 15 volts (maximum). This board has two detection circuits and two relay outputs, allowing for control of two independent locations on the tracks. Transmitter 1 and Detector 1, energize (close) Relay K1 contacts. Transmitter 2 and Detector 2, energize (close) Relay K2 contacts. These relay contacts will close for a predetermined amount of time in seconds when the train breaks the beam between the corresponding Transmitter and Detector assembly on the track.