In the animated series, Ecto Goggles functioned as they did in the movie, as visual P.K.E. Meter. There are also two other devices that seem to act much like the Ecto Goggles which are the Ecto-Visors and the Helmet Ecto Goggles (likely made so the ABC censors would be happy in episode Ghosts R Us).
The Real Ghostbusters
A frequency adjustment was required for other entities that are normally invisible, such as the Imps imprisoned in Gaylord's Joke Shop. Around the time when the Ghostbusters were hired to deal with Black Bart in Spittoon, Texas, the Ecto Goggles were upgraded with new fiber optic force field lens. This allowed them to pinpoint the location of the spectral energy well beneath the town.
Extreme Ghostbusters
Unlike most equipment in Extreme Ghostbusters, it appears that no updates were made with the Ecto Goggles.
Episodes they were used
The Real Ghostbusters
- Janine's Genie
- The Ghostbusters in Paris
- Egon's Ghost
- The Joke's on Ray
- Janine, You've Changed
- The Magnificent Five