... IP66,stainless steel with air-condition explosion proof cctv housingblastproof housing,with air-condition,IP66working temperature:-45°C--+ ... ,Aluminium,Outside Diamete:110mm, Inside Diameter:104mm(not including space of heat insulation)Inside Effective Length:240mm,Total Length:298mm , Power ... focus lens is suitableGood quality,best price,one year warranty explosion proof cctv housing