Use the Basement Watchdog Battery-Operated Water Alarm to detect leaks before costly water damage occurs. 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. The water alarm can be placed directly on floors or mounted for installation in a variety of locations: in a sump pit, near water heaters, refrigerators or dishwashers, next to washing machines, under sinks, close to air conditioner drain tubes or wherever there is a risk of water damage. The sensor with 6 ft. of wire offers installation versatility and can accommodate the addition of more than 100 ft. of wire. The water alarm operates using a single 9V alkaline battery and has a battery-saver feature that only uses energy when the alarm is sounding.
(105 reviews) 105
95%of customersrecommend this product98 of 103reviews
Rating Breakdown105 reviews
Ease of installation
95%of customersrecommend this product98 of 103reviews
I wish I knew about this product earlier. The drain on our air conditioner clogged and flooded our hallway and dining room ruining the wood floors. I thought then that I wished there was some type of device that would warn of a water leak. Then one day I happened across this product while looking for something else in the plumbing isle at Home Depot. I bought it and tested it out at home and it works great. It has a loud, high pitched alarm that sounds when water comes into contact with the two metal spots on the bottom. I set it on the floor behind the A/C filter (CLICK ON PHOTO BELOW). I plan on getting another to put near the water heater. It was only $10 and could potentially save me thousands of dollars in water damage. Highly recommended!!
After having the horror of a floor drain backing up in the basement, I wasn't about to take another chance in not knowing when water was coming up onto the floor.
I bought this water alarm after seeing that I could install the sensor wherever I wanted and have the alarm itself high and dry, closer to where we'd hear it easily. It can detect water as shallow as 1/32nd of an inch deep. Giving you plenty of time to take action before it's a full on flood.
It requires a 9V battery (not included) to operate. The manual says it can last up to five years on one battery, since it only turns on when the sensor gets wet.
You can place the alarm right on the floor, or you can detach the sensor and place the alarm up to six feet away with the included wire. You may extend the wire up to 100 feet if you need to.
This alarm would also work great to detect leaks from things like spring thaw through the foundation, sump pump failure, hot tub leaks or even an aquarium leak.
Given that it has a five year warranty and it's so inexpensive, there is no reason not to have at least one of these in your home. It's far less expensive than an insurance claim or paying to repair and clean up water damage.
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
I gave it a 5 star rating in anticipation that its gonna do what it claims to do. If so, it will well be worth its cost. Wish i had know about it before my water heater went, maybe i wouldn't have had to spend $750 to clean up the mess. I've since bought two, one for water heater area and one by the washer/dryer.
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.
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.
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!
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".
After a flooded basement that occurred after my primary and back-up sump pumps both failed to operate, I bought two of these units and placed one by the water heater, and the other near my basement sump.
About a year later, my son asked what that high pitched sound was that he heard. I said, "what sound?" With his help, we traced the sound to - guess what - another flooded basement!
The tone that these units give off is a relatively high frequency and not all that loud. I am an aging Baby Boomer who has lost some of his high frequency hearing, and while I can easily hear these alarms if I am in the same room with them, I find that the frequency doesn't penetrate floors or walls sufficiently to alert me.
I am now looking for a water alarm that has a lower sound frequency, is louder, or both.
Pros: Easy to Install, relatively inexpensive
Cons: not loud enough, high frequency can be difficult to hear
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.
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.