Equipped with a single‑infrared network temperature‑measuring movement and self‑developed laser‑gated imaging optical path for dual‑spectrum operation, the smoke‑and‑flame‑penetrating infrared imager serves smoky‑hot fire‑ground search‑and‑rescue. It locates trapped survivors and spots high‑temperature risks through smoke and flames, fixes imaging and temperature‑measurement malfunctions of old‑style hardware, and suits complicated fire‑scout environments like smoke, open flames and backlight.