Basically, it just one wire, folded in half twice, half isolated. It can detect a shortcuts in case of water touch 2 naked wires, decreasing resistance can be detected in this case.
INHO this way leak detection is more accurate, and not depend on batteries or wireless connection. It can be placed across whole boiler room, for instance near walls
Iven more, by using some math, exact place of wire with water can be calculated
Depending on the sense wire resistance you could probably use that cable with this if you are into DIY:
If not into DIY then you could purchase any zigbee, wifi or zwave leak detector that woks with home assistant and connect the sensing wires to the water leak contacts on the device (so still a little DIY required).
This will only give an alarm, not location of the leak. You could use a resistance sensor in ESPhome to estimate the position, but it would take a bit of trial and error calibration.
Interesting sensor cable. I’ve not seen that before.
Great project!
Yes, I’ll definitely made DIY one, and your link to Aliexpress is super useful - that store has cable I’m talking about as well!
But my question was more about which sensor type to use in configuration file.
And you share great option with binary sensor!
But what if I want to use pretty long cable, detect exact place of leak will be great option.
I think kinda “analog sensor” option should work in this case, like a soil moisture sensor for instance.
Just measure value for cable wet beginning and wet end, then just divide difference by length
Thanks Tom!
Your comets is extremely useful, as always!
