Had a leak under the sink in our kitchen. I don’t want to imagine what this would have meant on a larger scale, compared the 20€ I spent on the sensor and the 10mins it costed me to install it.
what model sensors are these? are they Z-wave? how long does the battery last?
I’m very interested in a similar setup.
I have the ikea ones (using zigbee), the two aaa batteries in there last about 1/2-1 year.
While not the same as the pictured ones, I can really reccomend them.
Was going to suggest the IKEA one. Pretty decent to use and has a local speaker if you don’t have any home assistant devices near by.
The door contacts are good too but I found that I had to connect them a few times before they would register on ZHA
Looks like an Aqara leak sensor. Zigbee. They were around US$15 on Amazon when I last bought some in 2023, and a dollar or two cheaper on Aliexpress.
hey can be used for a bunch of things, not just leak sensing.
I’m curious. Like what?
Edited my post to include a link - someone used it for a bed occupancy sensor: https://www.homeautomationguy.io/blog/making-my-own-bed-sensor
Some days I don’t wet the bed, how will it recognize my presence without a steady stream of moisture?
A door opening contact sensor.
You can buy these at around the same price or less, so no point in doing that
Aqara have good door and window sensors too
I use the water sensors from Aqara and integrated them with a Sonoff zigbee USB stick.
Thanks for the reminder, I need to install the rest of mine and my shutoff valve and start testing the automations
A few years ago the hose on our washing machine split and we didn’t realise until water started coming out from under the units. Thankfully damage was minimal but it was a big pain to dry out.
I’ve had some of those Aqara leak sensors in place since as a precaution.
Just remember to change the batteries regularly! Easy to forget them when they are out of sight.
Re batteries: You could also set up an automation that periodically checks the status and/or availability of your battery-powered sensors. Here’s a useful community blueprint for this: https://community.home-assistant.io/t/low-battery-notifications-actions/653754
I have mine checked once a week.
It sucks when you have a leak sensor, estimate the likeliest place that water will appear, miss it by a few inches thanks to the way water goes where it wants, and you end up having to manually catch the leak.
