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Versatile Photo Eye Alerts You When Its Beam Is Interrupted
EMX NIR Retro-Reflective Photo Eye
EMX NIR Retro-Reflective Photo Eye with 3 inch Reflector
EMX NIR Retro-Reflective Photo Eye with 3 inch Reflector
Item# 72101R
Free shipping on orders over $175 - See Details


  • Flexible voltage requirement 12 to 240V AC or DC
  • Relay output
  • Weatherproof
  • Comes with 3" reflector

Essential Info

Use this sensor to detect when something or someone passes an entry point at your home, such as a car entering your driveway, or someone coming in the side gate. The sensor emits a beam of infrared (IR) light, invisible to human eyes, bounces it off a reflector, and senses when the beam is interrupted. The light sent out is polarized, so the sensor responds only to light with the same polarization. Input voltage can be anything from 12 to 240 volts, either AC or DC. The output is a relay capable of 0.6A at 110-125 volts, 2A at 30VDC. It's waterproof to the IP66 standard, so it is built to take punishment outdoors. There are 2 LEDs which indicate proper operation.

The Retro-Reflective Photo Eye comes a 3" reflector to assure sufficient light returns to the sensor. Add the optional Protective Hood (sold separately) if there is too much ambient light at your installation, and to protect the reflector from physical damage. A Steel Protective Hood for the photo sensor is also available (sold separately) to protect it from damage.

What's Included

  • 1x - Retro-Reflective Photo Sensor
  • 1x - 3" Reflector
  • 1x - Mounting Bracket & Hardware
  • 1x - Instructions

  • Specifications

    Manufacturer Product No.NIR
    IR Range4in to 31ft (0.1 to 10m)
    Operating VoltageDC 12 to 240 volts ±10%
    AC 24 to 240 volts ±10%
    Response Time10ms max
    LEDsRed: On when output is on
    Yellow: On for stable operation
    Control OutputRelay Contact 1c
    Relay Current CapacityAC 125V 0.6A
    DC 110V 0.6A
    DC 30V 2A (resistive load)
    Operating Temperature-4° to 122°F (-20° to 50°C)
    Lead Wire Length6'
    Dimensions2.5" x 1.5" x 0.75"
    Mfgr Warranty2 years, limited

    Important notes:
    Only merchandise credit for defective items returned within 30 days of purchase. No other returns allowed on this item.
    Manufacturer contact information: EMX INDUSTRIES, INC., Tel: (800) 426-9912


    8 Ratings
    5 star: 62%  (5)
    4 star: 25%  (2)
    3 star: 12%  (1)
    2 star: 0%  (0)
    1 star: 0%  (0)
    Average Customer Rating
    (8 customer ratings)
    Share your thoughts with other customers
    GUNNAR -- grand blanc, MI   7/8/2013
    "Hiding" in a door frame, took some work, to be able to make it line up right. Just have to make sure both yellow and red light comes on, and it works great. I'm using it with a latch relay, would have been a great feature if it was built in.
    JOSE -- syracuse, NY   1/15/2013
    The pruduct work normaly after instalation. It is installed in Puerto Rico where you dont ship this product. This is the only complaint.
    PATSY -- loudon, TN   9/29/2012
    works just as good as many higher priced ones
    PAUL -- ottawa, ON   9/8/2012
    Works great and easy to setup
    DAN J. -- hudson, FL   7/30/2012
    It was exactly what we ordered and fast shipping. 5 star
    MATT -- atlanta, GA   6/15/2012
    Right part shipped quickly fair price
    CHARLES -- bothell, WA   12/29/2011
    Promptly shipped during a difficult season. Good Job!


    EMX Reflector-O-HD Protective Hood for 3" Reflector, Grey  EMX NIR-HD Steel Protective Hood for Photo Sensor  Enforcer 12VDC 1.25A Power Supply   
    EMX Reflector-O-HD Protective Hood for 3" Reflector, Grey  EMX NIR-HD Steel Protective Hood for Photo Sensor  Enforcer 12VDC 1.25A Power Supply   

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