The window and body are made from a single piece of plastic, making these sights more shatter resistant than sights with a glass window.

View tank contents from multiple angles through the plastic domed window.

Continuously monitor oil quality through the clear plastic reservoir and use the attached drain valve to remove water accumulation.

With a thick glass window fused to a metal body, these sights resist cracking at high pressures.

Press these sights into a hole in your tank wall; no additional mounting nuts are needed. They mount from the outside.

An extended flange makes these sights easy to bolt onto tank walls.

Monitor food, brewery, chemical, pharmaceutical, and biotech processing lines with these sights that attach to quick-clamp fittings for fast installation and easy removal for cleaning.

Designed with quick-clamp (KF) connections, these sights connect to a port on a high-vacuum chamber, so you can monitor what's happening inside.