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The extremely early fire warning device adopts dual fusion detection technology of smoke concentration and particle counting, which has higher sensitivity and can achieve alarm in the early stage of fire. At the same time, it combines the characteristic gases at the time of fire occurrence to achieve online monitoring and evaluation of fire.

1) High sensitivity: It has operational high sensitivity and can alarm in the very early stages of a fire, before smoke is generated;

2) Anti false alarm: Multi level anti mistake design, not affected by non fire substances such as dust and mist;

3) Characteristic gas detection function: It can detect carbon monoxide gas generated in the very early stages of a fire, and form a fusion detection mechanism with smoke detection to enhance the reliability of system warning.