Qu3stion?? Is the stove the TS is dealing with a gas stove?? Oran electrically heated stove ?? An electric stove is simpler because a single current sensor can detect any heating action. THAT can then start the beeper AND also switch on a reminder light to keep attention that heating is being done. In addition, an occupancy sensor can control reducing the beeper sound when somebody is in the same room. A gas stove will be a bit more complicated, MAYBE.

 

Qu3stion?? Is the stove the TS is dealing with a gas stove?? Oran electrically heated stove ?? An electric stove is simpler because a single current sensor can detect any heating action. THAT can then start the beeper AND also switch on a reminder light to keep attention that heating is being done. In addition, an occupancy sensor can control reducing the beeper sound when somebody is in the same room. A gas stove will be a bit more complicated, MAYBE.

That's why my trigger would be heat (boiling water at least) as that is the root cause of possible danger.. If something is getting hot, by any means the timer function is triggered by the heat sensor that monitors the the entire stovetop and as an option, the oven. For the oven, the heating alarm profile would need to be modified for typical oven cooking times and temperatures.

 

Rub it in.

I'll never be older than you.

ak

 

I'll never be older than you.

Only perhaps when you die.

 

The simple reason for a lack of an extended alarm noise o a cheap mechanical timer is that there is no simple way to store the energy to provide it. One spring provides both the timer drive and the signal noise power.
For the cheap digital electronic timers, it is a small battery that provides the power.

An actual HEAT sensor is definitely the way to go!! It should be mounted in a position to sense the heat from any of the heat production devices on the stove-top. The warning should be a bright light that demands attention from any part of the room, and probably there should also be an audible warning if an added occupancy sensor does not see any activity in the room for a few minutes, when there is heat being sensed.

Certainly this is a more complex scheme, but it will cover the condition of the stove having heat on and being forgotten, which can certainly happen.

The implementation of this scheme will require enough thought that it will wait until the concept is agreed to be valid.