IR Inspection window for safer, more efficient electrical IR inspections. IR windows install quickly and securely using the same design as common conduit connections: only one hole to create for each window, one simple PIRma-Lock™ ring nut to tighten and uses standard US punch tools for hole knockouts. PIRma-Lock™ reliability: tried and true locknut technology makes locking ring an IR window first: teeth lock tight to the inside of the panel, automatically grounds metal components and no screw holes required that might later strip out. Quick access hinged cover: simple thumb screw releases the permanently-hinged IR window cover: easy, flip-open hatch for faster scans, prevents dropping, mix-ups and loss and inside label for permanent identification. Broadband crystal IR window: lens encased in rugged, anodized aluminium frame allows indoor and outdoor scans: transmits short, mid and long wave IR images, supports visual inspections and fusion features and lets laser pointers and illumination shine through. Greater productivity and ROI: significantly reduces inspection time for more efficient assessments within NFPA 70E guidelines: requires only one person instead of three, can reduce or eliminate need for cumbersome PPE and helps reduce vast majority of arc fl ash triggers.