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Automatic Lighting Type
Motion / Occupancy Sensors
Timers Type
Wall Mounted Timers
Fixture Type
Sensor Type
Motion / Photocell Sensors
Ease of Installation
Beginner (Installs < 10 minutes)
Steinel America
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High Quality Stand-Alone Outdoor Motion Sensor
Steinel America IS140B Night GUARDIAN Raintight Motion Sensor Switch, Black
Steinel America IS140B Night GUARDIAN Raintight Motion Sensor Switch, Black
Steinel America IS140B Night GUARDIAN Raintight Motion Sensor Switch, Black
Item# 4366B
Price: $85.81
Free shipping on orders over $175 - See Details


  • Precision-molded curved lens for accurate reading every time
  • Uses an advanced surface-mount circuit board for greater reliability and longer life
  • Built-in surge protection with auto-reset
  • Total UL rain-tight rating for both sensor and fixture
  • Microprocessor manual override

Essential Info

These sensor switches are extremely flexible. They are designed for use with one or more lights up to 600 watts. With no minimum load requirement they can be used with low wattage appliances such as fluorescent lamps, alarms and video cameras. They are rain-tight and may be mounted inside or outside.

The sensor has the following features: 140° detection angle, 40' range, dual zone lens with Sneak-By-Guard, adjustable aim (270° horizontal, 65° vertical), includes shrouds to customize detection zone, rain tight enclosure, UL rated IP54, adjustable time setting - 10 sec to 15 min - switching capacity 0 to 600 watts, no minimum load requirements, 120VAC.

Precision-molded curved lens
Unlike other thin flat lenses, the NightGUARDIAN lens is molded into a curve, so it is distortion free and water-tight. No false triggering either due to distortion or moisture problems. In fact, the entire NightGuardian unit carries a UL rain-tight rating. Unlike the competition, it does not have to be placed under an eave or in a protected area.

Advanced surface-mount circuit board for greater reliability and longer life
Similar to the circuit board circuitry used in personal computers, NightGuardian technology provides reliable, accurate performance from -40°F to 120°F. This means no false triggering due to wind, leaves and swaying branches, snow, rain and hail, barometric pressure changes or sudden temperature changes. The competition often uses 30 year-old technology, using push-through mounting of components onto the circuit board and a layer of solder to make connections between circuits. This type of circuit responds slowly and has to go through many connection points, providing many potential points of failure.

Built-in surge protection with auto-reset
Unlike the competition, the NightGUARDIAN resets itself instantly after power surges, outages and shortages. Additionally, if the competitions' product is miswired during installation, the circuitry is generally destroyed. With the NightGUARDIAN, the unit simply resets itself once the wiring connections are corrected.

No mounting height limitation
Only NightGUARDIAN can be installed at any height, even above 12 feet. With its UL rain-tight rating, NightGUARDIAN can be placed in open weather... it does not require a protected area.

Flexible detection coverage
NightGUARDIAN offers "Sneak-By Guard," which prevents intruders from sneaking under the lens. Minimum coverage distance of 40 feet, even farther in colder temperatures. Views a 140° horizontal angle that adjusts to cover any 140° in a 270° sweep, with a 65° vertical plane adjustment. Zone adjustments made easy with clip-on shrouds that allow split zones. Timing adjustable from 10 seconds to 15 minutes.

Microprocessor manual override
The competition's product will often slip into override as a result of power outages or surges, wasting electricity until you notice the unit is in override mode. With the NightGUARDIAN, the unit will automatically return to normal operation after four hours. Additionally, a red indicator light behind the lens lets you know the unit is in manual override mode, eliminating guesswork.


What's Included

  • 1x - IS140B Night GUARDIAN Raintight Motion Sensor Switch, Black
  • 1x - Owner's Manual
  • Specifications


    Manufacturer Product No.:IS140B
    Detection Angle:140° adjustable horizontal zone
    Tilt & Swivel Head:270° horizontal, 65° vertical aiming capability
    Reach:40 feet when mounted at a height of 8 feet
    Sneak-by-Guard:Dual lens detects motion beneath sensor
    Lens Shroud:Limit detection zone
    Manual Over-ride:Resets to sensor mode after 4 hours
    Rain-tight Enclosure:May be mounted anywhere (IP54 rating)
    Watts:60 Watts (bulb not included)
    Time Setting:Lights shut off between 10 seconds and 15 minutes after last detected movement
    Lux Setting:Select when light will come on; from full daylight to complete darkness (2-2000 lux)
    "Lightning Proof":Built-in surge protection with auto-reset
    Fresnel Lens:Precision molded lens is distortion free and watertight
    Certifications:UL / C-UL
    Energy Star:Energy Star compliant in night lux setting
    Lifetime Warranty:Refer to owner's manual for details

    Important notes:
    Defective exchanges for identical item within 30 days of purchase. After 30 days, please contact the manufacturer.
    Manufacturer contact information: Steinel America, Tel: (800) 852-4343 Ext 113


    16 Ratings
    5 star: 62%  (10)
    4 star: 12%  (2)
    3 star: 19%  (3)
    2 star: 0%  (0)
    1 star: 6%  (1)
    Average Customer Rating
    (16 customer ratings)
    Share your thoughts with other customers
    ELIZABETH -- valparaiso, IN   10/4/2013
    they were able to ship it overnite and it arrived when requested.
    WADE -- kamiah, ID   3/8/2013
    Works very good with the 5000 lumin LED outdoor flood light I have. Very satisfied.
    ALAIN -- del mar, CA   12/14/2012
    Easy to install, instructions are clear. Works very well where others did not. I particularly like the ability to rotate and/or incline the sensor head.
    EDWARD -- crystal lake, IL   8/23/2012
    Excellent product (so far, at least). Easy to install, easy to adjust, and works well.
    MARCIA -- vista, CA   3/19/2012
    Product was as described and shipped very fast, price was reasonable. Shipping and handling cost were excessive. I would have prefered to have waited a week for delivery if that would have reduced shipping and handling cost. Vendor did not provide any choice for shipment. Pricing be equal, next time I will buy from someone else because of shipping and handling cost.
    FRANK -- hampstead, MD   7/28/2011
    Looked for ages for a quality, weatherproof sensor that would control CFL's. I found it in this unit from Smarthome. It is everything I expected and I recommend it highly.
    PAT -- indianapolis, IN   4/22/2011
    The sensor itself well constructed and works well. The installation instructions, on the other hand, are worthless.
    SUSAN -- kirkland, WA   1/28/2010
    The product description says this was just what I was looking for, and it works most of the time, but sometimes it doesn't trigger. Not sure if that is the fault of the motion sensor or the Insteon in-linelinc relay. Still playing with it.
    RJG -- ontario, Canada   1/11/2010
    The Steinel motion sensors works very well. Tech support guys at Steinel are great and they helped with installation tips. I have two installed: one for each side of my driveway gate. Very good product.
    RANDY -- palm springs, CA   3/7/2009
    This device installed easily and works just as advertised.
    MICHAEL -- cambridge, MA   4/22/2008
    This one actually works exactly like it's supposed to, unlike those cheap Heath/Zenith $20 cheapos which have never worked for me.
    STANLEY -- fountain hills, AZ   7/25/2007
    Motion sensor, works well. Good quality . Everything OK so far. Thanks
    MICHAEL -- jacksonville, FL   4/11/2007
    The TIGHTWATT (82402) timer works great. Very simple to install and program. I like the fact that it has summer and winter time so the pool filter runs less in the winter.
    CLIFFORD -- los gatos, CA   1/22/2006
    My only complaint would be in the installation instructions that came with the motion sensor. The sensor itself had three wires - a white, a black and a red wire. The installation instructions only showed a white and black wire ... very confusing!

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