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Sold by: FJI INC
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(502 ratings)
73% positive over last 12 months
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THE BASEMENT WATCHDOG Model BWD-HWA 110 dB Battery Operated Water Alarm

4.7 4.7 out of 5 stars 7,475 ratings

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Purchase options and add-ons

Color Multi
Brand THE BASEMENT WATCHDOG
Power Source Battery Powered
Product Dimensions 3.25"L x 1.25"W x 4.25"H
Voltage 9 Volts

About this item

  • Detects as little as 1/32 in. of water to offer an effective early warning system
  • Solid-state circuitry is extremely sensitive and reliable
  • Loud 110 dB alarm can be heard throughout the house
  • Sensor has a 6 ft. wire so it can be extended into a sump pit, or mounted on a wall
  • Accommodates the addition of more than 100 ft. of wire (additional 24-Gauge wire not included)
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Additional Details

Small Business
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Customer ratings by feature

Easy to install
4.8 4.8
Battery life
4.7 4.7
Noise level
4.6 4.6

Customers usually keep this item

This product has fewer returns than average compared to similar products.

Frequently bought together

$12.48
Get it as soon as Tuesday, Mar 26
In Stock
Sold by Glentronics and ships from Amazon Fulfillment.
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$12.58
Get it as soon as Tuesday, Mar 26
In Stock
Ships from and sold by Amazon.com.
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$18.99
Get it as soon as Tuesday, Mar 26
In Stock
Sold by Glentronics and ships from Amazon Fulfillment.
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THE BASEMENT WATCHDOG Model BWD-HWA 110 dB Battery Operated Water Alarm
THE BASEMENT WATCHDOG Model BWD-HWA 110 dB Battery Operated Water Alarm
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Price-37% $12.48
List:$19.95
$18.99-11% $15.99
Typical:$17.99
$12.99$23.99$14.95
Delivery
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Customer Ratings
Easy to install
4.8
4.3
5.0
4.5
4.6
Battery life
4.7
4.4
4.3
5.0
4.1
Noise level
4.6
4.3
4.2
3.9
Sold By
Glentronics
Glentronics
Future Day
GEEVON Electronics
HEYI SECURITY
Topvico INC

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Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Product Warranty: For warranty information about this product, please click here

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THE BASEMENT WATCHDOG Model BWD-HWA 110 dB Battery Operated Water Alarm


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Product Description

Features of The Basement Watchdog Water Alarm

Basement Watchdog High Water Alarm, water alarm placement, dry basement, water alarm, Model BWD-HWA

Basement Watchdog High Water Alarm, water alarm sensor, dry basement, water alarm, Model BWD-HWA

Basement Watchdog High Water Alarm, cost-effective protection, no flooding, dry house, Model BWD-HWA

Place It Anywhere

Put The Basement Watchdog High Water Alarm (Model BWD-HWA) next to a water heater, under a laundry tub, a sink, or anywhere water damage is likely. The alarm includes 6' of wire, which you can extend up to 100', allowing the sensor to be used in hard-to-reach places.

Detects Leaks, Big and Small

All it takes is 1/32" of water to set off a piercing, 110 dB alarm. The problem is detected before a flood occurs or mold can grow. The Basement Watchdog High Water Alarm (Model BWD-HWA) is so sensitive that the moisture from your fingers is enough to set off the alarm.

Small Investment, Big Protection

Your small investment gets you big protection. The Basement Watchdog High Water Alarm (Model BWD-HWA) 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.

protecting basements, stop flooding, dry basement, Basement Watchdog, backup pump, sump pump

30+ Years Protecting Basements

The Basement Watchdog has been protecting homes for over 30 years and continues to lead the pack. We build the most dependable, user-friendly pumps and accessories in the industry using intelligent design, premium components, and quality manufacturing practices that include thoroughly testing every single unit.

Important information

Bulb Voltage

9 volts

Customer reviews

4.7 out of 5 stars
4.7 out of 5
7,475 global ratings

Customers say

Customers like the sensitivity, quality and value of the leak detector. For example, they mention it's extremely sensitive, works well and is worth the money. That said, opinions are mixed on noise, battery life, water resistance, and ease of use.

AI-generated from the text of customer reviews

946 customers mention818 positive128 negative

Customers like the quality of the water alarm. They say it works well, is useful, and is a super smart device. They also say it has saved their lives on several occasions and is invaluable. Customers also mention that there have been no false alarms for the 10 alarms in 1 year.

"...These alarms do a very good job, but there are newer wireless sensors that communicate with a central receiver; can alert you through phone or email..." Read more

"...It will protect and warn you of any problems that can occur even even if no one knows what it is they’ll hear the beeping and let you know...." Read more

"...This alarm is awesome. I purchased the optional ac power adapter so I don’t have to worry about batteries...." Read more

"...This is a simple, basic, no app needed water alarm. We bought four and set them up right away. Each uses 9 volt battery not included...." Read more

475 customers mention446 positive29 negative

Customers appreciate the value of the leak detector. They say it's a simple device that alerts for leaks before any damage is done, and it could save you thousands of dollars. Customers also mention that it'll provide an added sense of security.

"...It's a small price to pay, considering that water damage is often one of the most common home disasters, and often isn't covered by insurance..." Read more

"...make a noise and then I wipe it dry again Definitely definitely worth the investment...." Read more

"...I love the set-up and the added sense of security that this alarm provides...." Read more

"...These little things will save you lots of money in the long run. This is a simple, basic, no app needed water alarm...." Read more

248 customers mention244 positive4 negative

Customers find the setup of the water alarm to be easy. They mention that the concept is simple, the mechanism is simple that it can't fail, and the alarm is easy to hear. They also appreciate the many options for installation, including standalone, a 5-ft+ wired remote sensor, and a battery backup. Customers also mention that it's very easy to check if it'll still work.

"...Just change the battery. Very easy to check if it’s still working I just touch my finger with water on the bottom and I’ll make a noise and then I..." Read more

"...The alarm is loud and noticeable even from my basement. I love the set-up and the added sense of security that this alarm provides...." Read more

"...This is a simple, basic, no app needed water alarm. We bought four and set them up right away. Each uses 9 volt battery not included...." Read more

"...Easy to setup and whenever the surface they are sitting on (like the concrete floor of my basement) gets damp enough, the Watchdog starts howling..." Read more

63 customers mention47 positive16 negative

Customers like the sensitivity of the tool. They say the sensor is extremely sensitive to detecting the slightest bit of moisture. The contacts on the bottom are also very sensitive, allowing the alarm to go off if you simply touch them.

"...I like that this unit is the most sensitive one that I have tested - it will alarm even with the slightest trace of conductance, e.g. dry fingers on..." Read more

"These simple little alarms are incredibly powerful. The alarm is very sensitive to even the slightest bit of water so you will be aware as soon as..." Read more

"...purchased this brand of water alarm in the past and they are a very sensitive alarm. I use them in several places around the house and basement...." Read more

"Very sensitive...." Read more

569 customers mention335 positive234 negative

Customers have mixed opinions about the noise of the product. Some find the alarm very loud and easy to hear, while others say that it's not as loud as a smoke detector and difficult to hear.

"...The alarm is loud, but it is just a steady, very high-pitched tone, which can be hard to hear if you have any hearing loss...." Read more

"...you need to be home to hear them. There are more modern options that are Internet connected." Read more

"...The alarm is loud and noticeable even from my basement. I love the set-up and the added sense of security that this alarm provides...." Read more

"...I filled in the gap with epoxy, and re-installed the battery. No noise, and I hope that the wires didn't get ripped off the circuit board, which is..." Read more

163 customers mention112 positive51 negative

Customers are mixed about the water resistance of the product. Some mention it's a great little device to prevent water damage, while others say that it saved their house from flooding. That said, some say that the product detects even small quantities of wetness immediately.

"nice inexpensive solution for water detection and the alarm is very loud." Read more

"One month after I put it under sink had leak at 12:45 am. Alarm saved house from flooding… several, too many neighbors had recent with months..." Read more

"...mat we use to protect the bottom of the cabinet, so the contacts were not submerged, and the alarm was not loud...." Read more

"...2 contacts on the bottom of this thing and paper towels wick up water very effectively. It seems my setup worked...." Read more

141 customers mention69 positive72 negative

Customers are mixed about the ease of use. Some mention the benefit is they detect leaks as soon as they occur, and are extremely effective. They say it's a universal water leak alarm good for many different situations. However, others say that the connections had a crack and was leaking.

"...Water was leaking where the hose connects to the fridge, small amounts of water every time someone filled their cup, but it was adding up...." Read more

"...They respond quickly to any leaks. This is an item that I recommend to all friends and family...." Read more

"...The bathroom sink connection began leaking and the alarm alerted me. Without the alarm, I doubt the leak would have been noticed...." Read more

"...These are super smart devices and have saved us from having numerous water leaks and added water damage...." Read more

96 customers mention64 positive32 negative

Customers are mixed about the battery life of the product. Some mention it has great battery life, does not pull energy from the battery unless it's being used, and lasts a long time. Others say that the circuit lacks a low-battery warning and that the compartment door slid off with no tool.

"...It doesn't draw any current until it detects water, so if you put in a good quality battery, it will silently guard your house for several years...." Read more

"...or almost completely passive which means that it uses little or no electricity until the 2 contacts on the bottom come in contact with water which..." Read more

"...9 volt battery not included and I just set it up so I did not review the battery life...." Read more

"...One of the units is over a year old and the battery is still good. You should test them periodically. Recommend these!" Read more

L O U D !
5 Stars
L O U D !
20 years ago our water heater ruptured. It was under a stairwell stuffed with boxes full of household items many of which were ruined. Upon inspection the tank had been leaking for many months if not years. When I replaced the water heater I purchased a watchdog and powered it with a 9v lithium battery. 12 years later late one evening my wife and I were startled by a ear piercing sound. The tank was leaking but thanks to the watchdog, this time we were made aware before a catastrophic failure!We were able to get our belongings out of harm’s way and alleviate a flooded basement.A $12 watchdog equipped with a $5 lithium battery will provide over 10 years of protection and regardless of the size of your home I guarantee you’ll hear it when it goes off. I’m 60 years of age and have experienced ruptured washing machine supply hoses, failed kitchen sink supply lines and a severed well pump pressure switch line. In each case a properly placed watchdog would have kept the repercussions to a minimum. When you compare the cost of a half dozen watchdogs with the nightmare scenario of a flooded home it’s a bargain. Because the sensors are normally placed in remote locations and forgot I strongly recommend that you install a ultra long life lithium battery and mark the date.
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Top reviews from other countries

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IOANIS SPIROPOULOS
5.0 out of 5 stars Very satisfactory
Reviewed in Canada on December 27, 2023
Priscila Cabrera
5.0 out of 5 stars Cumple su función
Reviewed in Mexico on December 18, 2018
Glen Nadeau
5.0 out of 5 stars Simple but effective
Reviewed in Canada on July 5, 2023
Richard
4.0 out of 5 stars Eau au sous-sol
Reviewed in Canada on May 3, 2023
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Richard
4.0 out of 5 stars Eau au sous-sol
Reviewed in Canada on May 3, 2023
J'ai une pompe de puisard au sous-sol qui rejette l'eau à l'extérieur quand la nappe d'eau monte trop. J'ai installé le détecteur à 6 cm (2.5 pouces) sous le niveau du plancher en le vissant sur une petite planche (Voir la photo). À l'arrière de la boîte principale, il y a une encoche qui permet de l'accrochée au mur, maximum 1.5 m (5 pieds) plus haut.
Il arrive, surtout au printemps, que l'eau monte plus que normal et s'il manque d'électricité ou que la pompe tombe en panne, j'espère être avisé par le son "strident" de l'alarme. J'ai testé le détecteur et il fonctionne normalement.
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One person found this helpful
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Bertron
5.0 out of 5 stars Ça l'air très efficace
Reviewed in Canada on November 7, 2023