The detector shell adopts the thickened explosion-proof aluminum alloy shell and the thickened explosion-proof glass panel to ensure the long-term stable work of the product in various industrial explosion-proof environments. Display mode: 2.1 inch bright color LED display, 4-bit 8-segment digital + graphic display; Operation mode: infrared remote control, distance <8 meters. Flood protection: Intelligent overrange protection circuit. With embedded technology and high sensitivity anti-poisoning gas sensor, constant alarm sensitivity is maintained. ABUS bus technology, non-polar design of power supply and bus, with perfect self-protection function.