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Low cost and effective water leak alarm, prevent water damage at your home and business,
suit for Laundry, basement water alarm, water heater leak, etc
How to Use the Water Leak Detectors?
1, Install Battery
Install 1 unit 9V battery, suggest use brand and Alkaline battery.
2, Confirm where to Put the Detect Board
- Check where need detect leakage, put the detect board.
- If need extend the cable length, just cut the original cable of detector, add normal electric wire.
3, Fix the Alarm Host
Use included double-sided tape to fix the alarm host (host not waterproof).
How to use?
- Install 1 unit 9V battery
- Turn on the switch
- Test with water
- Dry the detect board
- Confirm the detect board position
- Paste the sensor with included double paster
Where to use?
MysterIe
2025-09-05 14:27:54
Summary: They're inexpensive (currently $23 for 5) It's loud enough but not piercing, mounts easily, has an on/off switch, and the sensor and alarm can be separated by 37-inches.If you've been in an RV long enough, sooner or later you'll have half-a-dozen incidents where you end up with some kind of water leak. Perhaps a slow-drip under the sink. Perhaps rain works it's way around a seal. Perhaps you left the gray-water drain closed and the shower starts to overflow. Perhaps you didn't use a pressure regulator, so now your sink leaks. Or perhaps you replaced that ugly RV faucet but your install wasn't tight enough so it starts spraying everywhere. Even condensation can sometimes be a problem.Anyway, for RVs (or even homes), I'd suggest placing one near any shower, sink, water-heater, water-pump, water-tank, or water-drain.* Sturdiness & Quality: It looks like an inexpensive manufacture. How well these hold up and work long-term remains to be seen. In a critical area, I installed 2 of these sensors.* Utility: Having an alarm when there's a leak could save you hundreds or thousand of dollars in repairs (and frustration).* Features: It has an on/off switch, a 37-inch cord, makes a loud alarm noise when the sensor is wet, and takes a 9v.* Install: Wipe surface where you'll be securing the alarm with isopropyl alcohol to ensure a good stick. Use cable ties on the cable. Perhaps put the sensor partially under a piece of electrical tape or other tape, while not completely covering the sensor.* Appearance & Material: It's mostly made of a white plastic material, a thin wire, and a simple sensor.* Accessories and Hardware: It comes with some double-sided sticky material which seems like it should hold.* Price: The current price is amazing. $24 for 5. (I think I saw another pack $15 for 3).Because I've only had this a short time, I cannot comment about battery-life or durability. On Sept 21 2023, I have an cheap ACDelco 9v that shows 9.61v, next time I check the battery or when it runs out I'll try to remember to update here.
Frankk9
2025-07-25 16:28:40
I had a water heater leak in my finished basement ruining various funiture items, carpet and walls. Had to completely remodel the basement. After that, installed these on everything that had a water line connected to it. When I tested them by wetting the sensor, they gave off a loud alarm that can be heard a good distance away. Only need to install a 9V battery, and stick wherever needed with a double sided tape supplied with the sensor. I plan to test periodically making sure the batterries are still good. Had used another brand sensor which didn't work as well.
Bucky K
2025-07-10 18:07:50
Just installed. Very easy to set up and works right out of the box. I plan on buying more of these low tech devices. High tech IoT solutions for detecting water leaks require Wifi connection - these low tech ones do not. Their design is breathtakingly simple and effective - a drop of water sets off a loud alarm; wipe the sensor board dry and you can re-use. As the instructions are skimpy and hard to figure out (English is not the manufacturer's first language), know that (1) the battery goes it head first, line it up with the +/- signs printed on the plastic box, the end of the battery should be the last thing you see before you shut the lid of the battery compartment; (2) if you can't even push open the lid of the battery compartment because it's hard to get a grip on it, pry it open with a letter opener or penknife, it comes out easily. Will update this review once I've lived with these products for a few months, to see if they really work.
Ron Haer
2025-06-13 17:11:21
Cheap and simple water detector.I marked on position with a green dot. Also marked battery orientation with red and black marker. I didn’t use the provided double stick tape. I instead used the 3m hook n loop Velcro so I could easily remove. The unit is very loud. The sensing head is pretty sensitive if it creates problems I’ll just remove it and use just the two wires to complete the circuit. Only complaint so far is the sensor wire could be longer and could come out of bottom of sensor pack. Didn’t make any sense to go up out of top to end up going down to water sensing area.
ArtDeco.Joe
2025-06-07 17:19:38
These water sensors work well. I got them for my basement, and for under my kitchen sink after I did some DIY plumbing (don’t ask lol). They are very loud as in VERY loud.
Kats
2025-05-14 21:21:36
I got really tired of surprises with water on the floor so I bought these. They were good value for the money. I put one by the washer, one by the hot water heater, by the pressure tank, by an old refrigerator, and they are a water pipe that has a tendency to leak/Break. The alarm is well loud enough that you can hear it upstairs, although I have to say that even when you were standing right beside it, it is not so piercing an alarm that it hurts your ears. But you want it loud enough that you can hear it and this does the job. These are simple to set up and install and I would recommend them for every household. I cannot rate technical support as I have not had to use it so I am leaving those stars blackI got really tired of surprises with water on the floor so I bought these. They were good value for the money. I put one by the washer, one by the hot water heater, by the pressure tank, by an old refrigerator, and near a water pipe that has a tendency to leak/break. The alarm is well loud enough that you can hear it upstairs although I have to say that even when you were standing right beside it, it is not so piercing an alarm that it hurts your ears. But you want it loud enough that you can hear it and this does the job. These are simple to set up and install and I would recommend them for every household. I cannot rate technical support as I have not had to use it, so I am leaving those doors blank. **1/24/24 thank you! This little alarm just saved me from having a sopping wet garage. It went off right after the garage pipe burst. I immediately knew what it was, went downstairs and shut the house water off. Some water, but not a lot, in the garage due to same pipe that broke in 2023.
Customer
2025-05-12 14:08:45
They work well
Mr. S
2025-04-02 13:35:51
They do appear to be rather lightweight, but they work perfectly and come with double sided tape for mounting. Loud too with an on / off switch. Tested each before mounting and no problems. Great for those out of the way places. Mounted mine under the sinks and in the floor tray for my water tank which is hidden away. Only had them a couple of months so can't comment on battery life, but no reason to suspect it will drain power unless activated. A little tip on mounting the sensor; I cut a small piece of paper towel and wrapped this a couple of times around the sensor and then duct taped this to the surface - See pic.
Sundown
2025-03-21 15:18:30
IT'S ALL ABOUT THE BATTERY! Bought these alarms to place around the house. Yes, they are made in China so they may seem a little flimsy, but that doesn't seem to have affected their intended use. As soon as they arrived, we tested all 5 of the units using a small glass of water. Each one worked PERFECT. The alarm would wake the dead, but that is a good thing. What we discovered however was if the 9 volt battery was not up to par, the alarm sent off a quiet pathetic little squeek then quickly died. We have a volt meter and checked the battery that was in the unit that failed. It measured 8.2 Volts. It came right out of a new package of 6 Duracell 9 volt batteries. The other 5 measured a little over 9 volts. They all worked fine in the units. My advice would be to check the units on a regular basis. Although they shouldn't draw any current when not sounding the alarm, the battery may slip down in volts as time goes on. Apparently even 1 volt down from 9 volts, the units fail. It is NOT the fault of the unit. **Although the battery measuring 8.2 Volts would not set off this alarm, I was still able to use the battery in my electric guitar for the onboard tuner. Again, IT'S ALL ABOUT THE BATTERY. You need to ensure it is a full 9 Volts or it it probably won't sound the alarm.
Trevor L
2025-02-15 13:39:55
Exactly what we needed for piece of mind. We've put one behind each toilet, by the hot water tank, washer, and the utility sink. Will be buying another set for under all the sinks. I've had two relatives suffer costly repairs from leaks that went undetected for too long or a sudden leak that wasn't discovered immediately. Now that we're home owners we wanted to reduce these risks and these devices are cost effective and good for when you're home. We're also looking into automatic WiFi water main shut-offs so we can easily shut off the water whenever we're not home. When you see how much damage water does having these things is a no-brainer especially when these are so affordable.
Adrian C. Agapie
2025-01-31 13:01:58
My wife started the water in the bathtub and forgot about it. I heard something screaming in the bathroom and I first ignored. The noise was too annoying therefore I went to see: it was the water detector screaming about the water overflowing the tub.
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