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Internet # 322001202

Model # BW-WA360

Store SKU # 1008309497

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110 dB Battery Operated Water Alarm with 360 Sensing Technology

$24.98
  • Patented design means alarm detects water on any side
  • Saves money by finding leaks before costly damage occurs
  • Compact size (2⅜ in. x 1 in. x 3 ¼ in.) fits almost anywhere
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Product Details

About This Product

The Basement Watchdog 360 Water Alarm has a patented design which allows it to detect water when placed on any side. The water alarm should be placed anywhere there is a risk of a water leak. Its slim design allows it to slide between your washer and dryer, takes very little space under your bathroom, kitchen or bar sink and easily fits behind your fridge where the water line comes in. Other crucial areas to place an alarm are next to your sump or sewage pit, in the drip pan of your air conditioner and under your dishwasher. All it takes is 1/32 in. of water to set off a piercing, 110 dB alarm. The problem is detected before a flood occurs or mold can grow. Your small investment gets you big protection. The Basement Watchdog 360 Water Alarm Model BW-WA360 gives you an early warning system that will save thousands in cleanup and repairs by heading off a drip that started under your sink, a broken fridge water line or a water heater that sprung a major leak.

Highlights

  • Can be placed on any side, in any orientation
  • Will still work if unintentionally knocked over
  • Solid-state circuitry is extremely sensitive and reliable
  • Loud 110 dB alarm can be heard throughout the house
  • Detects as little as 1/32 in. of water to offer an effective, early-warning system
  • Battery-saver feature only uses energy when the alarm is sounding, which extends battery life
  • Place in a variety of locations next to sump pit, near water heaters, by refrigerators, next to dishwashers, beside washing machines, under sinks, close to air conditioner drain tubes
  • Requires a 9-Volt alkaline battery not included
  • 5-year limited warranty
  • Click here for more information on Electronic Recycling Programs
  • Return Policy

Product Information

Internet # 322001202

Model # BW-WA360

Store SKU # 1008309497

Specifications

Dimensions: H 3.25 in, W 2.375 in, D 1.0 in

Dimensions

Product Depth (in.)

1.0 in

Product Height (in.)

3.25 in

Product Width (in.)

2.375 in

Details

Brand Compatibility

Universal

Connectivity

No Electrical Connectivity

Pack Size

12

Product Weight (lb.)

0.15 lb

Returnable

7-Day

Warranty / Certifications

Manufacturer Warranty

5 Year limited

Questions & Answers

will this float if placed in a bucket.
ByAug 24, 2026
1 Answer | 
Answer This Question

This device is heavy enough where it will not float in a bucket. For more information you can contact our service team at 800-991-0466 option 3. We're here to help from 8-6 Monday - Friday central time.

By|Aug 24, 2026


    What is the rated life of the alarm itself (not the battery)?
    ByDec 2, 2025
    1 Answer | 
    Answer This Question

    The expected lifespan of this device is 10-15 years depending on the environment its placed in. For more information, please contact our customer support team at 800-991-0466 option 3. We are available to take incoming calls from 8am – 6pm CT Monday through Friday.

    By|Dec 3, 2025


      Will this work OK if placed on top of sump pit cover?
      ByOct 28, 2025
      1 Answer | 
      Answer This Question

      Yes, if water overflows out of the pit and makes contact the alarm sensors, the alarm will sound. For more information, please contact out customer support team at 800-991-0466 option 3. We are available to take incoming calls from 8am – 6pm CT Monday through Friday.

      By|Oct 29, 2025


        What is the difference between this model and the Watchdog Water Alarm?
        ByOct 20, 2025
        1 Answer | 
        Answer This Question

        Unlike the original version of the water alarm, this device is completely submersible, so you don’t have to worry about water disabling the electronics. For more information, please contact our customer support team at 800-991-0466 option 3. We are available to take incoming calls from 8am – 6pm CT Monday through Friday.

        By|Sep 17, 2026

          (2)

          Will it work with heating oil?
          ByFeb 27, 2025
          1 Answer | 
          Answer This Question

          This device uses conductivity between the corner nodes to detect fluid. We have only tested it with normal water, as that is its intended application, but based on the fact that heating oil is a poor conductor of electricity it most likely will not work. For more information, please contact our customer support team at 800-991-0466 option 3. We are available to take incoming calls from 8am – 6pm CT Monday through Friday.

          By|Jul 31, 2025

            (1)

            will the battery leak if alarm never sounds, and if so, does battery need changing?
            ByJun 3, 2024
            1 Answer | 
            Answer This Question

            A good battery will not leak. We recommend replacing the 9V battery once every 12 months. For more information, please contact our customer support team at 800-991-0466 option 3. We are available to take incoming calls from 8am – 6pm CT Monday through Friday.

            By|Mar 29, 2026

              (2)

              Can this be used in an unheated garage where I have a water heater?
              BySep 27, 2023
              1 Answer | 
              Answer This Question

              This water alarm should work fine in that application. If your water heater ever has a leak, and the water from it touches 2 of the sensors on our system it will sound the alarm. For more information please contact our service team at 800-991-0466 option 3.

              By|Mar 14, 2026

                (2)

                Does it notify you when the battery needs replacement?
                BySep 25, 2023
                1 Answer | 
                Answer This Question

                This system does not come with a low battery indicator. We recommend proactively replacing the 9V battery once every 12 months to ensure you always have a fresh battery for maximum alarm time. For more information, please contact our customer support team at 800-991-0466 option 3. We are available to take incoming calls from 8am - 6pm CT Monday through Friday.

                By|Sep 7, 2026

                  (4)

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                  Customer Reviews

                  4.5 out of 5

                  • 4.5 out of 219 reviews
                  • 33% recommend this product
                  Filter by:
                  Showing 1-10 of 219 reviews
                  This customer chose to rate the product and not provide text.
                  by
                  Hopefully it will never have to go off due to a water leak! The alarm is loud when sampled. Worst part is getting the battery lid back in place, really tight and has a seal which in theory is great to protect the battery compartment, but be ready to have that one issue. Fits nice in small areas. Can’t give a review since there has been no water issue but if the alarm trips, someone should be able to hear it.
                  by
                  • Verified Purchase
                  2 found this review helpful
                  I have a water heater under the kitchen sink, and an undetected leak would be an expensive disaster, so i put the heater in a pan, and placed this alarm in the pan. If more than a few drops accumulate in the pan the alarm will give a nice ear-splitting alarm, and i will be able to shut off the supply. I put another alarm in a large water heater's pan too. I tested them, and they react quickly!
                  by
                  This customer chose to rate the product and not provide text.
                  by
                  • Verified Purchase
                  This customer chose to rate the product and not provide text.
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                  This customer chose to rate the product and not provide text.
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                  This customer chose to rate the product and not provide text.
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                  • Verified Purchase
                  The design is great because it will work upright or laying flat.
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                  This customer chose to rate the product and not provide text.
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                  • Verified Purchase
                  I use this to alert us to water backing up in a basement sink, the lowest point in my drain system. Saved me a couple times!
                  by
                  • Verified Purchase
                  1 found this review helpful
                  Showing 1-10 of 219 reviews