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NCE Block Detector Module - BD20 - .01 to 20 Amps - All Scales
NCE Block Detector Module - BD20 - .01 to 20 Amps - All Scales
NCE Block Detector Module - BD20 - .01 to 20 Amps - All Scales
NCE Block Detector Module - BD20 - .01 to 20 Amps - All Scales
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NCE Block Detector Module - BD20 - .01 to 20 Amps - All Scales

Marsoni M251S
Sale price$16.99
Pay 4 payments of $4.25 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
NCE Block Detector Module - BD20 - .01 to 20 Amps - All Scales01 to 20 amps. Detects presence of train in block by the current it draws in a range from 0. 01 to 20 amps. No electrical connection to track, simply route track feeder wire through holes in tombstone current. Does not reduce track voltage or get hot. Easily connects to Auxiliary Input Unit (524 200, sold separately) or most signal systems.
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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4.6 ★★★★★
Based on 2269 reviews
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H
Verified Purchase
Hency
Battle Creek, US
★★★★★ 3
Not great
Color: Black, Size: Wheel-132''
The product arrived and in good condition but I can’t assemble the tube A to tube B because i still have to deburr the inside part of the hole. They did not clean the drilled holes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 13, 2024
T
Verified Purchase
T
Bozeman, US
★★★★★ 1
Almost impossible to assemble 😞
Color: Beige, Size: Wheel-22''
Took 2 people to stretch the fabric out, to connect to the poles, and the side bars did not match to the holes that you push/slide together
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
Y
Verified Purchase
Y. B.
Cuba, US
★★★★★ 3
check measurements
Color: Black, Size: Wheel-176''
smaller than expected
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2025
A
Verified Purchase
Amanda
Houston, US
★★★★★ 1
Do not buy this!!
Color: Black, Size: Wheel-132''
The holes to assemble it together were in the wrong places and it was welded together, so you can’t move it around. I’m not able to use this.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 9, 2025
S
Verified Purchase
Stephanie Moore
Cuba, US
★★★★★ 5
Nice
Color: Black, Size: Wheel-132''
Very nice. They fulfilled the purpose.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 17, 2025

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