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Automatic Lighting Type
Motion / Occupancy Sensors
Timers Type
Wall Mounted Timers
Fixture Type
Sensor Type
Motion / Photocell Sensors
Motion Activated
Water Resistant
# of Loads
1 Load
Maximum Time Duration
15 minutes
Ease of Installation
Beginner (Installs < 10 minutes)
Steinel America
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High Quality Stand-Alone Outdoor Motion Sensor
Steinel America IS140W Night GUARDIAN Raintight Motion Sensor Switch, White
Steinel America IS140W Night GUARDIAN Raintight Motion Sensor Switch, White
Steinel America IS140W Night GUARDIAN Raintight Motion Sensor Switch, White
Item# 4366W
Price: Normally $85.99 
Hot Deal $68.96
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
  • Has no mounting height limitations
  • Total UL rain-tight rating for both sensor and fixture
  • Microprocessor manual override
  • Lifetime Warranty

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
  • 1x - Owner's Manual
  • Specifications


    Steinel Product No.:IS140W
    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


    15 Ratings
    5 star: 47%  (7)
    4 star: 27%  (4)
    3 star: 27%  (4)
    2 star: 0%  (0)
    1 star: 0%  (0)
    Average Customer Rating
    (15 customer ratings)
    Share your thoughts with other customers
    STEPHEN -- cedar rapids, IA   5/6/2013
    The motion sensor arrived sooner than was predicted. It was well packaged. This replaces an identical model that I have had for 17 years when it failed. If you want a sensor that you can manually control by a switch in the house and also by its built in sensor, this is a great model
    ROBERT -- redmond, WA   3/21/2012
    very easy to install, and works well to turn on our porch light. exactly what I was looking for. Many Thanks
    ROBERT -- university place, WA   10/6/2011
    Future project. Please check back.
    STEVE -- verona, WI   12/6/2010
    Works great right out of the box. Does the job I intended for it. Couldn't be better.
    ANTHONY -- camarillo, CA   8/23/2010
    The part arrived promptly and in good condition. I called for information on the installation and got a pleasant person who was able to provide assistance. Thanks.
    STEPHEN -- allen, TX   10/15/2009
    I purchased two of these motion sensor switches to control lighting on my garage and house. They work great... just as advertised.
    HOWARD -- toledo, OH   1/23/2009
    The time adjustment seems to me to be excessively finicky.
    STANLEY -- mansura, LA   7/14/2008
    So for the sensor works great. Goes on & off when it is suppose to and has never come on for and never go off for no apparent reason.
    THOMAS -- west paducah, KY   4/4/2008
    Could not find the sensor in local stores. Delivery time was encouraging.
    KEN -- bumpass, VA   6/24/2007
    unit worked as advertised, good product
    DAN -- olympia, WA   12/3/2006
    Perfect for using as a motion switch that can be adjusted, we have this in our bathroom 12ft in a vault and it turns on our low level lighting that can be adjusted for low light times of day.
    TIM -- massillon, OH   1/17/2006
    works great.
    GWEN C. -- citrus heights, CA   12/19/2004
    More than met my requirements. Easy to install and works just perfect. Very easy to set the sensor. I really like the motion sensor!! Thanks for the catalogue, I see several other items I will order at a later date.

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