Amazon, Multi-Timer, $20, can be programmed to the second.
Mine turns on every 2 hours, for 60 seconds, hasn’t missed a beat.
Practically anything can be automated in terms of “on” “off”
Along with ATO sensors, cannot fail.
This makes allot of sense, and is a great idea.
It would also make dosing kalk with an ato or non stirer setup super simple