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I'm thinking of using these to illuminate LED's for hidden staging yard occupancy. Each unit will detect 4 tracks. They seem to be priced right at $29 retail. I can probably get them for about $22 each. I'd love to hear some comments from other users. Any BD4 users out there?
http://www.digitrax.com/prd_statdec_bd4.php
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Staff member
Well I already have the photo cells installed, just have to mount the light sources, not a big job, then build the detector, guess I'll stick with the origonal plan.
Willis
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