noun
speed limiter
A device or system that restricts the maximum speed of a vehicle or machine.
この車にはスピードリミッターが付いているので、180キロ以上は出せません。
This car has a speed limiter, so it can't go over 180 km/h.
Variant with interpunct; less common but still seen.
Loanword from English 'speed limiter'.