Below-Baseboard Mechanism. Slow Motion Semaphore Movement. 2 aspects "Stop" (Hp0) and "Proceed Slowly" (Hp2). 2 coupled semaphore arms, with LED lighting, and below-baseboard mechanism permanently attached to the signal. Height 48 mm / 1-7/8". Installation depth 65 mm / 2-9/16", diameter of mounting hole 13 mm / 1/2".
