Tomar Industries H-845 HO Scale Upper Quadrant Semaphore Train Order Signal

Upper Quadrant Train Order Board comes with a three position red arm with green, yellow and red lenses, a three position black arm with red, red and green lenses and LED installed. Compatible with Tomar Industries Three Position Signal Mechanism (SKU: 870). One 870 required for each arm (not included). Instructions and resistor included.