Model railroad optical detector. The CDS4 photocell detector module allows up to...

Model railroad optical detector. The CDS4 photocell detector module allows up to four optical detection zones for the detection of trains on model railroads. Sensors mount between the rails and activate circuitry when shaded from a passing train. We have optical type detectors that work excellent for detecting trains at specific locations as well as the more prototypically correct current-based detection used on most North American railroads and elsewhere in the world. How to install the Azatrax infrared model railroad train detector circuits. 9/32″ Hole. Infrared Proximity Sensor The CKT-IRSENSE is an inexpensive reflective infrared proximity sensor, designed primarily for model railroad use, utilizing the latest in proximity sensor technology. Hints, tips and photos of examples of infrared sensor installations. Feb 1, 2018 · Model railroad occupancy detectors fall in generally two categories – optical detectors, which detect light either reflecting or being blocked by model railroad equipment at a specific spot; and current detectors, which detect equipment within a block of track by sensing the current being drawn. MOST PEOPLE DON”T NEED THIS. This IR Detector is compatible with all model train gauges. hvjtpjb byx zqr rvddiwq gcjv bmtbzz ehju rgp fhr zslp