[Solved] tea-machine and want to be informed by a sound alert whenever heating the water

Hi There,

I have a tea-machine and I want to be informed by a sound alert whenever it becomes heating the water, in order to go by the tea-machine to cut the power off after hearing the sound. I want to design a circuit without touching inside the machine. I only want to use the electromagnetic field that is produced by the mains cable (220 VAC). I think this is possible by using a sensor like an ammeter coil as seen in the picture below. Is it true?

Would anyone please help me?

Hola ese sistema no funcionaría pues se activa siempre al conectar la máquina puedo diseñarte un circuito que se activaría cuando llegue a la temperatura deseada con posibilidad de desconectar y volver a conectar cuando baje la temperatura
si te interesa me respondes
saludos

I am trying to solve by using CT1202-RC current sensing coil

I used a current sensing coil, a rectifier, an optocoupler, and a relay. It is OK