Best Water Detectors & Alarms of 2025

"I recently bought the Govee WiFi Water Sensor 3 Pack and it's been one of my best investments. These devices are lifesavers for protecting my home from water damage. Setting them up was straightforward—just connect to my 2.4GHz WiFi. The Govee Home app lets me monitor all sensors easily. The 100dB adjustable alarm is loud enough to hear throughout my large house. I appreciate the customizable sensitivity that helps reduce false alarms. Receiving email alerts is a game changer, as it keeps me informed even when I'm away from my phone. I strategically placed one in my basement, one in the laundry room, and another under the kitchen sink—high-risk areas for leaks. After a few months, these sensors have already alerted me to minor water issues, allowing me to prevent serious damage. The battery life is impressive, and the low battery alerts are a thoughtful addition. Overall, this pack offers great value and peace of mind."

"I received my Govee sensors and immediately set one up under my kitchen sink. While trying to install it, I felt a dampness on my hand from the bottom of the cabinet. It didn’t trigger the alarm because the water film didn’t touch the sensor probes. I realized I needed to adjust the sensor’s feet for it to work properly. After sanding them down, I tested it again, and it worked perfectly. This modification allows it to detect moisture before a puddle forms. The first sensor I installed has already saved me from potential damage. The setup was a bit confusing, especially with the Wi-Fi connection, but I managed to get all six sensors working after a second attempt. Overall, I’m very pleased with this product."

"I installed these only 17 days before our disposal started leaking. Thanks to this product and our under sink mat, we prevented damage to our brand new cabinets. It could have taken us several hours to notice the water accumulating under the sink. Well worth the price and very simple to set up!"

"So far, these sensors have been holding up well after a few years. However, when the battery is dying, it starts chirping, which typically happens at 2 am! The battery cover requires tiny screws to access the batteries, which I think is a poor design. After replacing the batteries, I just taped the cover on and ditched the screws."

"The Govee Water Detectors are incredibly sensitive. They immediately alert us to any leaks or drips with a loud 100dB alarm. This is essential for our work where we deal with water and various chemicals. The adjustable audio alarm is a great feature, providing us with peace of mind knowing we'll be promptly alerted to any water issues."

"I had a Z-Wave system before, but it was unreliable. Switching to YoLink's LoRa technology was a game changer. I can now monitor my garage door and other sensors from a distance without issues. Setting everything up was incredibly easy, taking just about 5 minutes for the garage kit. The app integrates well with IFTTT and even Alexa, which I love. My experience has been excellent overall!"

"I bought the hub and water sensor to monitor my basement. The setup was straightforward and the app is very intuitive. I'm using an Ethernet connection for stability, and the communication with the sensors is almost instant. The water sensor works perfectly, notifying me right away when it detects water. Plus, the integration with Alexa was simple, making my life much easier!"

"I purchased the YoLink smart home starter kit and found it to be well-built and easy to set up. I hope the battery lasts 5 years! I'm enjoying the peace of mind that comes with having sensors in multiple areas of my home. The alerts and notifications work perfectly, and the price point is fantastic compared to other brands!"

"I found the Govee leak detectors easy to set up. After some initial difficulty, customer service helped me, and I was able to test the sensors successfully. They notify me via push notification and email when there’s a leak, although I wish they also sent text messages. Still, I feel reassured knowing I have them installed throughout my home."

"Setting up these sensors was a breeze. I was surprised at how loud the alarm is, which is great for catching attention. They even notify me when my pet spills water. The connection is strong and reliable, making this an easy product to use."

"I was impressed by how well these leak detectors work. It’s hard to review a product like this because I hope I never need to use it, but I tested it by dripping water, and it worked perfectly. I had a traditional alarm before, but this smart option will definitely save me from potential water damage in the future."

"This sump pump alarm is a fantastic addition to my setup. It alerts me if the water level gets too high, providing an early warning sign that my sump pump might not be working properly. The alarm is loud and effective, giving me peace of mind. The setup was simple, and it has been working flawlessly."

"I’ve been using these alarms since 2016, and they’ve saved me from disaster. When my upstairs washer leaked, the alarm was loud enough to hear from the second floor. I just recently bought new ones for my new place. They're also easy to test, and I can definitely recommend them!"

"I tested this alarm with a wet fingertip before installing it, and it is sensitive and loud. I’m confident we would hear it even on the top floor if it went off in the basement. Thanks to this alarm, I caught a hot water tank leak early enough to prevent a mess and potential damage!"

"I can't express the stress I had over leak detectors. After a frustrating experience with my D-LINK, I searched for a new system and came across X-Sense. The reviews were encouraging, and it truly exceeded my expectations. The setup was effortless and took under 7 minutes. The app guided me flawlessly. I even tested it by placing a satellite detector in my sink, and the alarm went off instantly. For around $50, I can't recommend this enough!"

"Setting this up took about 10 minutes to monitor my sump pump and water heater. It's a good kit that works perfectly for my needs. I’d definitely give it a full 5 stars!"

"I just received 6 sensors today. The setup was incredibly fast—less than 5 seconds for each! After testing them, I was immediately alerted when I placed water on a sensor. I'm genuinely impressed with the quality and price of X-Sense products!"

"I love how simple these detectors are. Just some contacts, a 9V battery, and a siren. I set a calendar reminder to replace the batteries every three years. I have them placed in all spots where I've had leaks in the past, like next to the water heater and under the dishwasher. They’re good and cheap!"

"After getting these, they proved their worth immediately when one of my toilets leaked. The alarm went off, confirming they work. However, I have a couple of concerns: there's no way to check if they work without getting them wet, and if they’re in a closed room, I might miss the alarm when I’m not nearby. Despite that, the price was reasonable, and I'm satisfied overall."

"I was pleasantly surprised by how well these work. I tested one by pouring water on it, and the alarm sounded perfectly. I live in a trailer where I can't see the water tank all the time, and these alarms will definitely help notify me before any major leaks occur. They’re small and easy to place anywhere."

"Setting these up was incredibly easy for me. I just placed them near potential leak sources like under sinks and around the water heater. No tools were required, and these functional gadgets really deliver. The 100dB alarm is impressively loud—I could hear it from another room during testing, which is exactly what I wanted. If a leak happens while I’m asleep, I know I’ll still hear it. They fit perfectly in tight corners and work well on various surfaces. Plus, I love that they can detect even small drips."

"I bought these detectors after a recent dishwasher flood. My plumber recommended them, saying they can alert me to leaks from appliances like refrigerators and water heaters. After testing one with water, I found that they are VERY loud! While they won’t prevent a flood, I believe they can help me catch small leaks before they become major issues."

"After using these for 6 months, I feel a lot more secure. I had a leak under a sink that caused flooding before I even knew it. With these alarms, I could have been alerted much earlier and avoided the damage. They truly provide peace of mind."

"I've found these to be great for monitoring under sinks and attic AC drip trays. I had a slow leak go unnoticed for years, but now I feel more secure. The quality is impressive, and they are very loud when tested. I plan to place more behind the washing machine and in my rental home to protect against potential leaks."

"Living in an old house, I know that unexpected water leaks can happen. These detectors came well-packaged and were easy to set up. I appreciate the loud alarms; I can hear them from two rooms away. The user guide was clear, and the adjustable sound levels worked perfectly during my tests."

"I've been using Leak Frogs for years, especially since heavy rains can cause leaks in my basement. These detectors provide me with peace of mind. When it rains heavily, I can confidently check the top of the basement stairs and hear nothing, thanks to these alarms. Catching leaks early is invaluable, and I truly love how these serve as my little basement watchdogs."

"I'm thoroughly impressed with the WiFi Water Leak Detector 5-pack. The setup was straightforward, thanks to the clear instructions and user-friendly app. The sensors connect effortlessly to the gateway, ensuring a stable and reliable connection throughout my home. The 120dB adjustable alarm is fantastic, allowing me to customize it for different environments. Plus, the instant app notifications give me peace of mind wherever I am."

"After my neighbor had a plumbing issue, I decided to get these leak detectors. The setup was easy, but I wanted to rename them based on their locations. I tried using the test button, but it didn't work as expected. Eventually, I dripped water on each detector to identify them and rename them in the app. It would be helpful if the manufacturer marked them 1-5 to avoid this issue, but overall, they work perfectly."

"We installed these detectors after our kitchen flooded from a dishwasher leak. These sleek, compact devices emit a loud alarm when they detect water and send notifications to my phone, keeping me informed even when I’m away. The setup was straightforward once I restarted my router, and they paired with the gateway effortlessly. I appreciate that the batteries were included and plan to check them again in six months."