Ecolink FLF-ZWAVE5-ECO Z-Wave Plus Flood/Freeze Sensor, White, Smart Home

I use these to monitor the pans under my A/C units in the attic and detect when the drains plug up and water overflows into the pans. They are working great. Super reliable. I connected them to a Hubitat (paired very easily) and they alarm via the Hubitat and Apple Home which Hubitat connect to. I’ve had them alarm a couple times as my A/C guy was trouble shooting some drain issues - it was nice to be away from the house and know the A/C drain was plugged and just call the A/C guy to go back and fix it again until he got it right.

I bought this Water Sensor to replace my failed Aeotec Series 500 Sensor. The Aeotec Sensors were a nightmare to deal with. I kept getting false activation until I contacted Aeotec Support to get a correct code to program the sensors. Then they worked OK until one failed (mind you Purchased Jan 2018). The EcoLink Added to my 500 Series Controller on Domoticz easily and had one parameter and I don't have to learn machine language in HEX to program it (take that Aeotec). My only peeve with it is that the sending unit snaps into the mounting bracket. Which means cover and CR123 cell must be removed and the small difficult to locate tab must be depressed to remove from the mounting bracket. I broke off the tab so I would not have to fight it after forgetting about it in a year. It stays on the bracket OK by itself. Your mileage may vary... Overall, If you have a 500 series chip I can recommend this sensor. If you have an 800 series or later get the most recent tech. I've had problems with 800 series devices on my 500 series controller.

Ecolink is a great z-wave product line. Reliable, easy to install, great compatibility with z-wave hubs, and very long battery life. What I like best is it has a long cord between the sensor and logic unit so you can install the sensor where it is needed to detect flooding and install the logic unit in a convent spot for changing the battery. I'm installing this on my A/C condensation pan in the attic so I'll immediately know when the condensation line is clogged, and if the attic is freezing. Highly recommend this product!

After spending nearly the last two years remodeling a 115 year old house, a lot of that time was spent turning it into a smart home. I've replaced all the light fixtures, bulbs, light switches and outlets and built this all around SmartThings. Virtually any light, appliance or IOT device can be controlled with SmartThings and by voice via Google assistant integration. This is a Z-Wave device and is "compatible" with ST, but really needs a custom device handler (DTH) to make it work well. The first time I had to load a custom device handler into ST, it was a little intimidating, but now it's a breeze. I didn't need the freeze alert trigger on this device, so a free device handler I found on github works for me. I can monitor wet/dry and the battery life/status with this DTH. I bought a few of these sensors and put them behind my refrigerator and dishwasher. I just picked up 3 more to put behind my toilets and washing machine. I have some other Samsung and Zooz "puck" water sensors strategically placed under sinks, the water heater and a water softener to really monitor all the places that could potentially have water issues. With the SmartThings app, I've got an automation setup to turn some key led lights in my house on bright red to alert me to a leak issue. With a Dome motorized valve closer, the ST automation will also shut off the main water line to the house until I can determine what is leaking. I also have ST send a text message to my phone, that a leak has occurred. I like these Ecolink sensors for places I can't get to easily, like behind the fridge, dishwasher or washing machine. I use the sensor/probe on the floor, near water source and run the battery pack to a location that is easy to reach, which for me was in the cabinet, under the kitchen sink. That way, in the future, I don't have to pull the appliance out just to change the battery. For the toilets, I placed the battery pack under the tank with some 3M tape and ran the wire down the supply line with zip ties to the floor where I placed the sensor/probe near where the supply line come into the room. I didn't want to use the "puck" style leak sensors under the toilets, as we have cats and I thought they would play with them and get moved/lost too easily. With these Ecolink units I can secure wire to the supply line and the probe to the baseboard on the floor with 3M tape or screws. The sensor uses a CR123A battery which is great (common and inexpensive), as these sensors don't use a lot of power (thanks to Z-Wave) and should last well over a year. I've yet to replace any of the batteries on these sensors.

Unreliable. About a day after testing it the sensor sent wet signal. I checked and it was dry. I pulled the battery and it did not correct itself. The only way to get it back to dry was to remove it from the z-wave network and reinstall it. I can’t have such an unstable sensor monitor flooding conditions in the house.

We were having problems water pooling up by the house under heavy rain and had water seeping into the house between our slab and block. After making an attempt to address the problem we wanted to make sure it didn't happen again. This was the perfect sensor to feed down behind the baseboard and alerted us as soon as water started getting in again. Thanks to this we were able to catch the leak early each time it happened and finally resolve the problem outside.

These sensors are nice; there's a long cord to connect the sensor itself with the Z-Wave unit, long enough to get both mounted without too much effort. I did find that the tape supplied didn't stick particularly well to many surfaces (no surprise) so it's best to use screws. You can actually mount it to a shelving unit or even a piece of wood that won't float if there's a flood. The setup with the hub is easy; it works better than many Z-Wave devices in fact. Range is good; with one active repeater in the basement the whole area where I installed the leak detectors was covered fine.

Updating my review. My initial review was that this was pretty bad device. Turns out this was an Amazon fulfillment issue. Even though the product was marked as new and sold by Amazon.com, I received a very clearly used and broken device. Amazon eventually got around to sending me a replacement so just watch out if the seller you select is Amazon.com. This device works flawlessly with my SmartThings hub. It does show up as a contact sensor in the hub. However, I have my hub connected to Home Assistant and do most of my automation via Home Assistant with the SmartThings really just acting as a relay (via MQTT). Via MQTT, I do see the broadcast of wet or dry. The event notification time is very consistant and never more than a second.

I installed this to monitor the water level in a seldom used hot tub. It now alerts me through Home Assistant when the water level drops below the level I want. I also use it when drained during the summer to check for water arriving in the tub from rain (through the cover) (we live in a windy area).

Works as advertised. Very sensitive and reports dry/wet mode back to hub accurately. The remote sensors and 4 or 5ft long cable is ideal for tight places.