A Scouter is a wearable, all-purpose computer that Frieza's army uses. Scouters are mainly used to measure power levels early in Dragon Ball Z. A scouter appears as a semi-transparent colored monocle that covers the left eye. Dual-eye types exist as well, as Tagoma wears a blue variant, but they are uncommon. While used for early power levels, this one in particular is able to pick up even extremely high ones, and will not explode.