Flame Detectors

[@barryhenshaw9321]

I'm looking to build a fire detector for my house, how close does the fire have to be to activate the circuit? Is it all about the amplifer?
Thx for your response should you see my question

[@hussainkhan8495]

very helpful, thank you

[@Youtubershubham-er2iv]

Very hard video

[@thurazawwisewish1843]

Thanks……….