Our current-sensing occupancy detector works with both DC and DCC layouts. Four detectors are on a single circuit board to bring the cost per detector lower, however it is possible to only populate part of a card if one, two, or three detectors in one location is practical.

Electrical isolation between your track power and the circuit the detector feeds into is a good idea. Our detector accomplishes this by using optical isolation.

Quad Occupancy Detector Kit V4.02

Price: $17.99

Quad Occupancy Detector
Version 4.02 Board & Parts Kit

Board & Parts Kit to assemble one Quad Occupancy Detector capable of track currents up to 4 amperes per block.

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3 available for immediate shipment.

Quad Occupancy Detector Assembled V4.02

Price: $34.19

Quad Occupancy Detector
Version 4.02 Assembled and Tested Unit

Assembled and tested Quad Occupancy Detector capable of track currents up to 4 amperes per block.

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7 available for immediate shipment.

Quad Occupancy Detector Kit, High Current V4.02

Price: $23.49

Quad Occupancy Detector
Version 4.02 High Current Board & Parts Kit

Board & Parts Kit to assemble one Quad Occupancy Detector capable of track currents up to 8 amperes per block.

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This item is made to order and will ship within one week.

Quad Occupancy Detector Assembled, High Current V4.02

Price: $42.99

Quad Occupancy Detector
Version 4.02 High Current Assembled and Tested Unit

Assembled and tested Quad Occupancy Detector capable of track currents up to 8 amperes per block.

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This item is made to order and will ship within one week.

Quad Occupancy Detector Circuit Board V4.02

Price: $4.59

Quad Occupancy Detector
Version 4.02 Circuit Board



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80 available for immediate shipment.

Dual Occupancy Detector Add-On Kit V4.02

Price: $4.99

Dual Occupancy Detector
Version 4.02 Add-On Kit

One circiut board and additional connectors to be used with a Board & Parts Kit (standard or high current) to build TWO Dual Occupancy Detectors.

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This item is made to order and will ship within one week.

Current sensing detection requires rolling stock to draw a small current.

You can make your own detectable wheelsets for rolllng stock that draw a small current, or you can purchase them from companies such as Logic Rail Technologies. We have had good results using two of their detectable wheelsets per car.


Detectable wheelset by Logic Rail Technologies

Regular shipping fee based on location:

  • Canada: $12.00 (tracked)
  • USA: $15.00 (tracked)
  • Australia: $28.00 (tracked)
  • UK: $25.00 (tracked)
  • Thailand: $28.00 (tracked)
  • Other locations: $28.00 (tracked where available)
  • FREE shipping on orders over $175

Tracked shipping is available to Canada, USA, Australia, and Europe. Contact us for information on other locations.

Where tracking is available, a reduced priced non-tracked shipping option is available on small orders up to 200 grams.

Payment methods available:

  • PayPal
  • Cheque or money order via mail
  • Interac e-Transfer Interac e-Transfer (Canadian orders only)