放射 ほうしゃ せん測定 そくてい じゃなかったです
hōshasen soku teikijanakattadesu

Noun
Desu Copula

The polite, past negative form of 放射線測定器

1. Wasn't a radiation detector.; Wasn't measuring radiation.

Past/Perfective
Negative
Polite
Casual Register