Flame Detector Circuit Electronic This is the flame detector circuit to detect if there any flame in the room. The diagram is quite simple and easy use, but you may have difficulty about sensor component. Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pinterest (Opens in new window)