Thanks for your quick reply. I did as you suggested and lo and behold we have a working hob (stove). I am most impressed with the ease of use and the quick response of the app registering the position of the hob (stove) knobs. The motion sensor is excellent in that it picks up any movement in range of it and reports it to the app.
I have tested the alarm and it also works as I had hoped. My partner is 87 and I am 70 and this now gives us peace of mind as we have both left the hob (stove) on, on several occasions.
