Optical model railroad train detectors, infrared proximity sensors

Detectors

Controllers

Model Railroad Infrared Train Detection

If something can be activated with a switch, it can be automated with a train detector!

Train Detectors

Pulsed infrared proximity sensors for detecting model trains on the track.
May be used as a reflective detector (sensors in the roadbed) or as an interrupt detector (detector looks across the track).
Relay contact triggers crossing signals, trackside signals, panel lights or action accessories.
Automatically switch track power, see the how to automatically stop trains and the collision avoidance at track crossings pages.
Sensors can be used with the room lights on or off, and do not require overhead light sources.
No rail gaps required, no modifications to rolling stock.

MRD1 - Single & Simple

MRD1 $15.50

MRD2 - Two Sensors, Multifunction

Dual position detector, senses trains at two places on the track.
Two SPST (form 1A) relay contacts, isolated from detector electronics.
Output contact rated for 3 Amps.
Includes sensors with 2-ft. wire leads.
Four selectable operating modes:
- Two independent train sensors
- Direction sensing train detection
- Auto turnout control: twin-coil switch machine
- Auto turnout control: slow-motion switch machine
Size: 2.5 x 2.5 x 0.85 in.
Power required: 9 to 15 volts AC or DC, 80 milliamps.

MRD2 $36.50