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Circuitron 800-5520 SD-2 3-Position Semaphore Driver

$24.95 $19.99
(You save $4.96 )
Availability: Usually Ships in 5 to 7 Business Days
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Current Stock Level: 2
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Use with the Tortoise Switch Machine and an upper or lower quadrant semaphore-style signal. Includes all the logic circuitry to drive the signal to all three positions. Works with BD-1 or BD-2 Block Occupancy Detectors. A minimum of two blocks must have detectors installed for the SD02 to indicate all three positions.

All scales
Requires 10-18V DC power

SKU: CIR-800-5520


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