★ It can detect 1~4 kinds of gases at the same time, and the units can be freely switched. PPM, mg/m3, Vol%, LEL%, PPHM, ppb, mg/L. ★ Built-in pumping measurement, integrated water vapor, dust filter, fast response, support long-distance sampling built-in water vapor, dust filter to prevent damage to sensors and instruments due to water vapor and dust, can be used in high humidity, high dust environment; sampling distance is greater than 10 Meter, special gas path design, can be directly detected; negative pressure or positive pressure -0.5 ~ 2 kg of gas, no impact on the measurement results. ★ Rich man-machine interface
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