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.