♦ Hazardous areas: Zone 1&2 or zone 20, 21, 22
♦ Explosive gas atmosphere: class II A, II B, II C or Flammable dust atmospheres.
♦ This products are made by aluminum alloy, stainless steel or medium carbon steel.
♦ The explosion-proof signal lamp should be used together with flame proof enclosure, can’t be
used alone at explosive atmosphere.