Manufacturer of electronics enclosures

IP64 and IP54 water resistant see-through hinged inspection window.
Smartly designed window for protection of switches and displays, etc.
Use in situations where component status, access and maintenance is necessary.
Knurled thumb screws for easy securing.

Be careful not to get fingers caught on the spring loaded self-closing
cover.

4 additional larger sizes added for a total of 10 different sizes available.