28XX Posted June 19, 2018 Share Posted June 19, 2018 I have just received two of these. https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fulk%2Fitm%2F401136703623 They are Chinese clones of industrial sensors which I have some fond memories of using on industrial packaging plant. The European made originals are £40 or so a pop, but at £4.95 these are competitive with items made specifically for model railways. A simple test with a PP3 battery proved it will detect a minimum vehicle, ie, a bare Triang wagon chassis. Mounted under the track at about 30 degrees to the vertical ensures you don’t get loss of detection between vehicles. 1 Link to post Share on other sites More sharing options...
RAF96 Posted June 19, 2018 Share Posted June 19, 2018 Just a tad agricultural in size for inter-sleeper fitting. OK for cross track detection via a ‘building’. Rob Link to post Share on other sites More sharing options...
RMweb Premium njee20 Posted June 19, 2018 RMweb Premium Share Posted June 19, 2018 They're enormous! Why would you use those rather than any of the glut of IR or photoresistor sensors that available for pennies and are tiny? Link to post Share on other sites More sharing options...
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