Add $175.00 for FREE shipping
Learn More!
Alert System Type
Entry Alert
Sensor Type
Surface Mount Sensor
Infrared (Standard Consumer Electronics)
Contact Closure Input / Output
LED Feedback
Outdoor Rated
Water Resistant
Ease of Installation
Advanced (Installs > 60 minutes)
Other Ways to Shop
In Stock
On Sale
Order the Smarthome Catalog

Weatherproof Beam Sensor for Indoor or Outdoor Use
Enforcer E-931-S33PRQ Polarized Reflective Photoelectric Beam
SECO-LARM Enforcer E-931-S33PRQ Polarized Reflective Photoelectric Beam
SECO-LARM Enforcer E-931-S33PRQ Polarized Reflective Photoelectric Beam
Item# 70397
Price: Normally $163.40 
Hot Deal $61.49
Free shipping on orders over $175 - See Details


  • Excellent for monitoring outdoor gates, garage doors, and even assembly line automation
  • Weatherproof (IP66) for indoor and outdoor applications
  • Dual-color LED for beam alignment
  • Mounting bracket and hardware included
  • Assist in measuring parking distance

Essential Info

The SECO-LARM Enforcer E-931-S33PRQ allows you to protect and monitor indoor or outdoor spaces. Its polarized reflective beam sensor reduces the interference caused by shiny objects reflecting light back into the sensor, causing reliable monitoring and fewer false alarms. Only light that matches the original polarization will pass into the receiver. The E-931-S33PRQ features an IP66 weatherproof casing ensuring it can be used in harsh environments. It has a range of up to 33 feet (10 meters) and uses a universal AC/DC power supply (12 - 250 VAC/VDC).


What's Included

  • 1x - Reflector
  • 1x - Sensor
  • 1x - Sensor Mounting Plate
  • 1x - Weather-Resistant Gasket
  • 1x - Sensor Hood
  • 1x - Installation Instructions
  • Specifications

    Manufacturer Product NoE-931-S33PRQ
    TypeNIR Polarized Reflective
    Sensing RangeUp to 33 feet
    Power Supply12 ~ 250 VDC or 24 ~ 250 VAC
    Current Drain Standby12 VDC - 20mA
    24 VDC - 10mA
    Current Drain Active12 VDC - 40mA
    24 VDC - 20mA
    Response Time10ms (max)
    Light SourceIR LED
    LED'sGreen LED (Alignment)
    Red LED (Trigger)
    Trigger OutputSPDT Relay Output
    Switching Capacity1A @ 125 VAC
    2A @ 30 VDC
    EnclosureIP66 Waterproof
    Ambient Temperature-4°F ~ 131°F (-20°C ~ 55°C)

    Important notes:
    Defective exchanges for identical item within 30 days of purchase. After 30 days, please contact the manufacturer.
    Manufacturer contact information: SECO-LARM USA Inc, Tel: (949) 261-2999


    2 Ratings
    5 star: 50%  (1)
    4 star: 50%  (1)
    3 star: 0%  (0)
    2 star: 0%  (0)
    1 star: 0%  (0)
    Average Customer Rating
    (2 customer ratings)
    Share your thoughts with other customers
    Pro Installer -- Ventura County   7/3/2014
    This was difficult to align. But once I figured out the trick it was easy! Start with the reflector about a foot away from the sensor and slowly back away. Use the LED to keep the reflector in the beam. Once you have the reflector at distance, you should be able to move the sensor head much more easily than trying to find it from an unknown starting position. There is very little room for wires, so work neatly. And once the wires are installed it's extremely difficult to get the mounting screws back in. But have faith - it is possible!
    JORGE A -- san sebasian, PR   10/29/2012
    very good service Very happy

    Related Items

    Customers Also Bought

    Sign-up for Exclusive Email offers 
    How to Order Track Your Package Shipping Returns Contact Us Customer Service Retail Store
    Getting Started Learning Center FAQ Dealers Customer Testimonials Affiliate Program
    About Us INSTEON Press Awards Employment Guarantees Security & Privacy
    Free Catalog Email Newsletter Forum RSS Site Map
    Have questions? Call us at 800-762-7846 (Mon-Fri 5am-7pm and Sat 6am-3pm PT) or send us a message
    Place your order by 3pm PT for same day shipping
    Copyright 1995-2014 SMARTHOME™
    Verisign Secure Site PayPal Acceptance Mark