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Thanks guys this information has been very helpful. Jimthompson I looked at the data sheet and this might work for my project. From what I can tell the sensor is reading around 700 to 800 nm in wavelength. So am I right in thinking that this should see a flame though smoke if there was any? Or...

For now only 5 to 10 feet away, in the long run maybe 25ft. I’m not sure what you mean by Ambient lighting.

I’m trying to detect a candle flame. Using a photodiode and op amp. But I’m not sure as to what kind of photodiode and op amp I should be using. If any one has any suggestions as to what brand of components I should use I’m open for your input. These need to be through hole so I can mount them...

If I use the 8-12um infrared sensors what should I use and how would I wire it. I also understand about the difficulty of trying to focus on the fire, and plane to work on this after I get the sensors to detect a flame. Or would I be better off in trying to detect the heat from the fire, and if...

I’m trying to detect fire and not smoke. I’m trying to build a fire suppression system that will locate a fire using three of these sensors. These sensors are connected to comparators that operate motors for controlling the X and Y movement of a nozzle to guide it to the fire. Once this is...

I’m working on a circuit to detect fire, using Photonic Detectors INC. photodiode type PDU-S104. I’m not very familiar with photodiodes and how to design a working circuit. My question is what type of amplifier should I use and what would an ideal circuit look like? If more information is needed...