BH-4M with pump, with EX, H2S, CO, O2

The BH-4M from Bosean is an intelligently designed portable multi-gas detector featuring both pump suction and natural diffusion sampling. Engineered for rugged industrial environments—including petrochemical, environmental, and mining applications—it delivers fast, accurate, and continuous detection of four hazardous gases simultaneously. An intuitive user interface, backed by a high-resolution color display and user-friendly controls, makes it ideal for field professionals and safety staff.