1.1 Zone 2 hazardous locations
2. IIA / IIB class explosive atmospheres
3. For vessels, offshore platforms, oil platforms and other places sound and light alarms.
1. Cast aluminum alloy shell, surface spray
2. tempered glass cover, red, blue, yellow and other colors to choose from
3. Pipe or cable wiring can stand, pendant or ceiling mounting
4, in line GB3836-20000, IEC60079 standards
Please specify when ordering through the mask 5. Color, installation.