AXIS T92E20 features an internal shell for storing heat in cold environments. Fan ventilation for hot environments transfers excess to the outer chassis for efficient cooling.AXIS T92E05/T92E20 feature IP66 and NEMA 4X protection rating against the ingress of dust, windblown dust, rain, high pressure water jets from any direction, hose-directed water, and damage from external ice formation. In addition, they are IK10-rated for protection against impact and vandal acts.