Nice build quality. Looks nice. Very easy to connect to home kit.

Very small, good price, easy to hook up due to Bluetooth and not 2.4GHz Wifi. Others noted that it does not work well on cement or masonry, i would also like to note that it has issues sitting on metal that conducts like an aluminum water heater pan. Seems that the 3 copper contacts on bottom work by conducting electricity, or not, thru the medium they are on. So if this is on wood, that does not conduct, and water touches at least 2 contacts then electricity conducts and you get alarm. Good thing my pan came with a nice sized sticker that i can place this on. I am using the pan as a catch under my Humidifier as i have had issues in past.

I bought this about a year ago and today it saved my basement. My hot water tank burst and it sent a Critical Leak Detected notification to my phone, allowing me to shut the water off and begin cleanup before any water damage occurred.

After having these for a year now, some from Amazon and some from other home improvement sites, this product is great in the Apple ecosystem. If you know how to set up and use the Apple HomeKit products from Apple, this product is simply amazing. It floats, it's water tight, and the sensors work as advertised. I have one behind the water hoses for the clothes washer, one by the water heater, and one by the sump pump well. After the first week of having them installed, we had heavy rain and I found out the sump pump went out. The sensor by the sump pump was the first to issue an emergency alert followed by my water heater. Both on the permitter of the basement where water was beginning to over flow from. Thanks to this sensor, I was able to identify the sump pump float was stuck which caused the failure. These sensors saved thousands of dollars of damage since I do not go into the basement often. The three copper contacts detect water and there is a temperature and motion sensor too. You can use the app for the product to set up how loud these go and if it's tampered with (moved around). My cats moved them for a couple days and then left them alone. The sensors show up in the Apple Home app at the top showing room temp. From there, you can follow the settings in the home app to take you to the Fibaro app should you need to change any settings. These do not show up as items that have tiles, but they are at the top of the assigned room. These are very much worth the money and after one year, the battery is still reporting 100%. They come with a very good 123 battery. Remember to remove the paper from the battery when you first get them. Setup was a breeze. Use the Fibaro app to set them up and the connection to the Apple home app is simple. Scan the code and assign them to a room. Give them a unique name and you are set. Absolute GEMS. A must have device. I do test mine monthly after the sump pump stopped working shortly after getting these set up last year. Simply use a wet paper towel and set the puck on it. It's that easy and everyone in your home app (added users or family) all get the urgent alert. It's more than awesome and for $50, you cannot go wrong. Put them in all your rooms where you have a sink or are concerned about leaks.

I chose this sensor to work with HomeKit which always seems to cost more than all other brands that work off of their own app. Works fine and only "fault" is that HomeKit compatible stuff is hard to find and more expensive.

For reference, I have used both of these two water leak detectors:

The features were good and the installation easy. I chose it over other alternatives because of its compatibility with Apple HomeKit. I used it successfully for almost three months with no problems, then it recently started giving false alarms that it sensed water. Each time it did this, I checked and there was no sign of water, no leakage paths on the body of the sensor outside or inside. Unfortunately, the return window to Amazon has closed, so I have another item to send to the local land fill. I'll be looking for a different brand next time.

I have the Fibaro leak sensor and D-Link DCH-S160 leak sensor. I’ll soon to be replacing the D-Link with another Fibaro sensor. I got the D-Link to monitor an HVAC drip pan in an attic space specifically for the email alerts (through D-Link) and SMS/Text alerts (through IFTTT). I also got the D-Link for reliability since it plugs directly into an outlet and I won’t have to go into the attic often to check on it or replace batteries. The D-Link now fails these criteria for me because I was notified that the IFTTT integration would be discontinued by end of the year. Also, when I checked on it recently, it was in an offline state with no notice/alert what so ever (seems to have lost the WiFi connection). In 2.5 years with the Fibaro I have not had any connectivity issues with it since it utilizes Bluetooth and not WiFi like the D-Link and therefore is not susceptible to power outages, router reboots, or other WiFi connectivity issues. Also, with so many connected devices I’m looking to reduce my crowded WiFi as much as possible. Therefore, for peace of mind the Fibaro checks all the boxes for me. No connectivity issues experienced with the Fibaro sensor. Alerts and Home app push notifications are instant and Home app automations (i.e. turn lights on when leak is detected) are great. The battery life has also been great. Going on 2.5 years and the battery is still showing 100%. As of this writing, the only 3 HomeKit leak sensors appear to be Fibaro, Aqara, and Eve. I didn’t want the Eve because an outlet is needed to plug it in and also didn’t like that the Aqara which requires a hub. This Fibaro sensor is a bit over-priced for what it is but the price has come down a bit since it was first released. The reliability and peace of mind are worth it to me. The only thing I think is missing is a humidity sensor. Also, the Fibaro app isn’t great but it doesn’t bother me since I never open it (I use the Home app exclusively). I keep the Fibaro app only for firmware updates and to adjust the tamper sensitivity settings (low, medium, and high options). Battery health is displayed in the Fibaro app as well as in the Home app. Locations to consider for this leak sensor: water heater, kitchen sink, laundry, and HVAC drip pan.

Get a leak sensor for your basement. If you have a traditional tank-type water heater, these have a typical 10-year life span and then fail in the worst way imaginable. Every home should have one, even a simple one with an audible alert. However, if you're not home, or out of audible range, the HomeKit integration will save you. It is easy to install, the battery life is good and it works flawlessly. The critical home kit alerts sound disturbingly different from other alerts. I was upstairs on the third floor when I received a leak alert. There is no way I would have heard the alert from the basement otherwise. Anyway, get SOME kind of leak sensor. If you use HomeKit, this is the one to get.

Installed to provide back warning on a storm water sump pump as part of a HomeKit household. Installed external sensor (basically just attached a pair of wires to internal terminals and draped the other end into the sump - works just fine. Simple and Easy. The CONS: The units have different circuit boards so documented terminals might not be represented correctly.... not difficult to figure out though. Internal terminals should be MUCH better - why force the consumer to figure out ? Should have terminal posts as well. The connections should allow for 1] external power; and 2] external sensor HomeKit warning is insane - you get a single-shot, mild-ish warning and that's it - and you can't change it. For something which is intended to warn of FLOODING you would think that the warning would at least allow you to reconfigure it to something, you know, a bit more dire ? It is this last point which guts the usefulness of the product. I want a dang klaxon waking me up in my sound sleep letting me know that the house is about to flood, not something that I could easily overlook and never get a 2nd notice about.