The BT-BX402 portable multigas detector employs a natural diffusion sampling method for gas detection. ltutilizes high-quality gas sensors that provide excelent sensitivity andrepeatability, making it easy to operate and maintain. This instrument ishighly reliable for alerting you to hazardous gas levels, thus protectingyour safety and property. The detector's casing is made from high-strength engineering plastics combined with anti-slip rubber, ensuringdurability and a comfort able grip. lt is also waterproof, dustproof, andexplosion-proof. 1、User-friendly GUI operation interface 2、High-resolution color display, automatic screen rotation 3、Three-button operation, easy and intuitive operation 4、Natural diffusion gas sampling method TAG: Bosean gas detectorBT-BX402multi gas detector