Would love to see a small sensor that I could put on each of my gas range knobs that lets me know if the knobs are out of position (knob is on) which means I am using a burner or I have left the gas on for that burner. sensor could fit on outside of knob or inside/outside and detects when not in contact. I could set app to check again in N minutes to see if burner/knob out of position.