
This is a sub-sonic impact SENSOR.
The Big Bang Theory Season 1, Episode 11

All right, you're close enough
to Sheldon's room. Deploy the SENSOR.
The Big Bang Theory Season 1, Episode 11

controlled by a seismic SENSOR.
Money Heist Season 3, Episode 3

The seismic SENSOR isn't emitting
any signal now.
Money Heist Season 3, Episode 8

...and the SENSOR apparatus will rest on it.
The Big Bang Theory Season 1, Episode 12