Use the Basement Watchdog Battery-Operated Water Alarm to detect leaks before costly water damage is caused. This alarm can detect as little as 1/32 in. of water and produces a loud 110 dB alarm that can be heard throughout the house to provide an effective early warning system. A convenient battery-saver feature only uses energy when the alarm is sounding to offer a long battery life.
(67 reviews) 67
95%of customersrecommend this product62 of 65reviews
Rating Breakdown67 reviews
Ease of installation
95%of customersrecommend this product62 of 65reviews
We've had a couple minor water related problems over the years, mainly caused by poor reliability of available sump pumps and their switches. So after the most recent episode, I replaced the sump pump with most durable I could find and built my own switch to control it. For extra piece of mind, I purchased 2 Basement Watchdog Battery Operated Water Alarms. I like the removable sensor feature that allows the homeowner to mount the alarm on the wall and put the sensor 6 feet away on the floor. You can also splice in extra wire if needed. I spliced in a second sensor, made from 2 stainless steel screws and nuts, that hangs down into the sump on a couple small pieces of PVC pipe about an inch above the waterline where the switch turns the pump on. If the pump fails for any reason and the water ever reaches the screws, the alarm will sound. The actual splice is 2 more stainless screws and nuts, mounted on a piece of plastic that I set on the floor beside the sump. That forms a 3rd sensor for “free”. The second Watchdog Alarm unit that I bought I just put a battery in, wrote the date on the side, and set it on the floor near the water heater, just in case. While I was home last weekend, our electricity went off. I knew it was just a matter of time before the sump would fill without the pump running. Sure enough, within 5 minutes the alarm sounded just as advertised. These units are extremely easy to set up, just put a battery in, and put it sensor side down on the floor. I recommend writing the date on the side to remind you to change the battery after a year or two. Or you can extend the sensor with or without DIY modifications to fit your application. They are very sensitive, just touch the sensors to give yourself piece of mind that they are working. For the price, anyone with indoor plumbing should have a couple to alert you to water where it's not supposed to be.
Pros: Reliable, Easy to Install, Good Instructions
Well, my plumber was in my home and mentioned that he didn't see a "water alarm" in the basement. (3 weeks ago) He said for ten bucks I would be a fool not to have one. I bought one the next day, it sat around for a week until I put a 9v battery in, and then down to the basement it went. I put it by the sewer back flow opening, and BAM! this morning my wife calls me about the noise in the basement. Sewer backup! is was only wash water, but I don't go down there every day, and I would have had a basement full of poo. a massive cleanup was avoided,and we cleaned up with a paper towel or two. the plumber is there clearing the drain right now.
Sleep well, knowing the basement is dry. Before this alarm I would wake up during rainstorms to go check on the basement. Totally worth ten bucks.
At the end of February 2014 storms were predicted for Los Angeles and in the past, during heavy rains our basement has flooded. (Yes, some Angelenos have basements.) I purchased four of these (and four 9 volt batteries), placing them in the three places where water sometimes leaks. (The fourth was for the water heater closet!) The first night, it detected water before any damage had occurred & woke us up in time to make a fix.
-- it took about five minutes to install batteries and put the alarms in place -- the ear-piercingly loud siren woke us up from across the house in a heavy downpour -- they're simple and durable and look like they'll last for years -- you can either set the box directly on the floor (as I did with three) or hang the speaker on the wall and extend the sensors six feet down to the floor. With a little speaker wire you could probably move the sensor even further but the alarm's loud enough to make that unnecessary. -- it's a set-it-and-forget-it gadget, like a smoke detector. I figure I'll just put in new batteries on the same schedule as the smoke detectors.
The first night, one of the alarms woke us up! The gutter overflowed, sending water under the entry door to the basement. Before it had gotten very far we were able to soak it up and redirect the rainfall, saving our carpets and everything on the basement floor.
Pros: Easy to Install, Reliable, Good Instructions, nice & loud, set it and forget it
I bought one 10 years ago (I wrote the date on the battery) at Home Depot. Recently one evening while watching TV in the living room, I thought I heard a noise like a smoke detector coming from the basement. My wife who had been down there 30 minutes earlier told me I was hearing things. I opened the basement door and heard the noise. Walking down the steps in my stocking feet as soon as I stepped off the last step, I stepped into warm water on the carpet. I knew immediately what had happend and immediately turned off the main water valve. This $10 alarm saved me thousands! I'm going out tomorrow to buy a couple more!
Works well and easy to test with a little water or your hand. Since I was going to splice in some wire into the existing wire for a long run anyway, I wondered if I could add a "sensor". So I spliced in two more wires - 3 and 12 foot bell wire, wired in parallel - and then took two small pieces of wood and put screws in the blocks (spaced like the two contacts on the original sensor) and used them to secure the other ends of the wires. And it works ... if water hits either the original sensor or my two make shift ones the single base unit alarms. And now I've got coverage for an odd shaped space that includes a lift station and water heater for the cost of my time and the parts and pieces I keep in the shop.
Great product for the price. It has come in handy in the past for the sump pump. The power to house was out and the alarm reminded me of the sump pump so I connected the pump to the generator. Another time the sump pump quit working and the alarm sounded in plenty of time to change the pump.
Pros: Easy to Install, Reliable, Good Instructions
Bought 2 of them before. Installed one on the floor near the water heater. The other one still in the package unused. This unit alerted me to water leaks on 3 occasions. The water heater started leaking, my washing machine over flowed and a water pipe leak. I had some clean up to do but not like what I had experienced a long time ago. The alarm served its purpose after the water from other leaks have travelled to reach the alarm by the water heater.
People have complained that it did not do the job with the unit being submerged in water. The bottom of the box where the probes are, has about 1 inch clearance where the electronics are mounted inside the box. If the unit gets submerged in water beyond that, the electronics "can" get wet and fail. Mount the box high and the probes low like what a reviewer did.
I have utilized the other alarm now with 3 probes for each alarm box in a specific basement area. The alarm box is mounted on the main floor joist so I can hear the alarm better on the main floor. The probes are just your basic 10-32 stainless steel screws, 1-1/2 apart, secured on insulating material like plastic, definitely not on wood, one end of 18/2 lamp cord attached to the screws and the other end spliced to the probe wires in parallel. Tested the setup by touching the probes and dipping in water.
Huge bang for the buck. We thought our finished basement was fine--and then our carpet was soaked. If only we had this ahead of time it would have saved a ton of clean up. I made sure the unit worked by putting a drop of water down and setting the sensor on it and yep, it works! I wish we had this before we had to pull up the carpet, etc. Definitely recommend.
Should have had this before my sink overflowed that cost me $13000 in repairs now I have 3 of these water alarms at locations where water could leak This alarm is so senestive that a wet towel set it off & I don't have to worry about battery failure a 9 volt is good for 5 years (but check it's expiration date before installing)
Pros: Reliable, Easy to Install, Good Instructions, great invention
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Review 15 for Battery-Operated Water Alarm
Great Product that gives piece of mind for just a few dollars
It's 5:00 AM. I hear the scream of an alarm. What is it? Fire? Gas? Break-in? Nope.... it's my water alarm I installed 2 years ago. All I did was install a lithium battery (for long life) and place it near the water heater. It is SO easy. If I didn't have this, I would have flooded the basement. I have since purchased another 7 units to place under my sinks, toilets, and refrigerator. It was loud enough to wake me up from 2 floors away, behind 3 separate closed doors, and with a fan running in my bedroom. My wife said I was silly to get this when I purchased it years ago. Needless to say... I now get to say "told ya so".
We have water problems in our basement whenever we get a lot of rain in a 24 hour period. This alarm is loud and reliable and has saved us many times by letting us know when there is water in our sump. It has given us time to take action in the cases where the sump was overwhelmed. Like it so much we bought one for a friend with similar problems. Only drawback is cord is not long enough to mount anywhere but next to sump. I soldered 70 feet of speaker wire to it and placed the unit upstairs so we get notice even when sleeping.
We have water pipes that sometime leak therefore we have about 8 of these in our finished basement. They are very sensitive and detect moisture extremely well. Very loud alarm. Give us peace of mind having these to avert a major flood.
I live on the second floor of a condo with an 80 gallon water heater in the first floor garage which is an attached part of my unit. It is located in a closet with a closed door .If there was a leak I might not be aware of it for days. I was skeptical that a ten dollar item would operate as advertised. When I tested it with a small amount of water in my sink,it worked perfectly. I have advised two friends to get one . They did and are equally pleased.