NJ International 8001 Servo Master Activation System For Crossing Gates & Semaphores Loco Decoder 2” (30mm)

2” (30mm)

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NJ International 8001 Servo Master Activation System For Crossing Gates & Semaphores Loco Decoder 2” (30mm)NJ International 8001 Servo Master Activation System For Crossing Gates & Semaphores TDP offers sensor expansion kits for the ServoMaster to allow the operation of a grade crossing on up to four bi directional tracks (Stock # 8001 for optical sensors). The expansion kit will add a printed circuit board and one additional sensor cable giving you two additional pairs of start and hold sensors. This gives the system four sensor pairs for use on four