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Thoughts on Water flow sensors
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I have some engineering questions on their claims. I looked at all the devices listed and only the Phyn provided the accuracy specs. Their flow meter can detect .1 gpm. It is basically a doppler meter. This accuracy converts to 7571 drops per minute. I'm dubious that they can detect a small drip in the wall. Even if the others have twice the accuracy (I doubt it) then you are left with the smallest leak that can be detected is about 3500 drops per minute. That's a big leak.
I have leak detectors in all wet areas and the fibaro and homeseer hockey pucks have caught two leaks. One in the kitchen when the garbage disposal backed off and a spill in the laundry room.
There have been multiple nuisance trips but the turning the water back on is just the press of a button. I love the shutoff actuators as it is very convenient to turn off the water if you will be gone for a while. I think the insurance company is in corporate mode trying to improve it's bottom line by reducing risk to them.
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Originally posted by AllHailJ View PostI have some engineering questions on their claims. I looked at all the devices listed and only the Phyn provided the accuracy specs. Their flow meter can detect .1 gpm. It is basically a doppler meter. This accuracy converts to 7571 drops per minute. I'm dubious that they can detect a small drip in the wall. Even if the others have twice the accuracy (I doubt it) then you are left with the smallest leak that can be detected is about 3500 drops per minute. That's a big leak.
They are not cheap. So I think it is case of 'watch this space'.
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Tasmota firmware in any of the ESP8266 devices is able to count pulses. I modified a version, described in the mcsMQTT manual, where I had the pulse-to-ounces conversion done in the ESP8266 and configured via the web page. mcsMQTT also has this ability so any pulse input can be viewed in HS as a volume or flow rate measurement.
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