If they only relied on the sensor it would constantly turn on and off which is something I have never seen on that kind of faucets.
I think there is always a delay before shutting down but sometimes that delay is set so low that it feels like you need to constantly activate the sensor.
I think typically they only turn on when they actively detect something near the sensor. Once they no longer detect the object, they shut off.
That’s how this one works. If I stop rubbing my hands the water stops. It detects motion, not proximity.
I don’t think so.
If they only relied on the sensor it would constantly turn on and off which is something I have never seen on that kind of faucets. I think there is always a delay before shutting down but sometimes that delay is set so low that it feels like you need to constantly activate the sensor.
This one does that, it stays on only when I move my hands.
Which is exactly what I see all the time.