The harmful gas detector is a kind of gas leakage detector with infrared spectrum detection and high resolution anti-fog lens dual spectrum design.180-degree panoramic scanning can detect harmful gases in the air through detector in an environment of 1 ~ 5 km. Detection range is up to 50000ppm, which meets the requirements of relevant regulation. Detector has excellent stability, selectivity and high sensitivity, widely used in petrochemical industry, environmental protection, natural gas and other fields. This detector enables users to improve productivity, security, and confidence in the data under test.This is an effective tool to reduce the loss of company property and ensure safe production. Purpose Apply on Petrochimecal,City environment, Natural Gas.