DIY version to detect a high temperature flame using UV/Visible/IR sensors
- Amazing wiki page - Flame Detector
- MSA's Selecting Flame Detector
- UV Sensor
- IR Sensor
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Honeywell
- Multi-spectrum quadband triple IR fire and flame detector, dual microprocessors (https://www.instrumart.com/products/37730/honeywell-fs24x-flame-detectors)
- Multi-spectrum UV/dual IR/VIS fire and flame detector, electronic frequency analysis (https://www.instrumart.com/products/37732/honeywell-fs20x-fire-sentry-detector)
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Fireeye (https://www.fireye.com/)