The Global Flame Detector Market Size is expected to reach USD 4.8 Billion by 2032, at a CAGR of 7.3% during the forecast period 2022 to 2032. A flame detector is a type of sensor that detects and responds to an indication of a flame or fire, making flame detection possible. These detectors are capable of detecting flammable liquid and smoke that can cause an open fire. These electrical devices can detect fire based on the temperature and motion of the air.