Measurement device unit

Abstract

A measuring device unit, mountable to an exterior of a vehicle, includes: a data processing device including a circuit board and a plurality of electronic components disposed thereon, and acquiring detection data, to generate integrated data; a container accommodating the data processing device; and a protective cover covering the container. The electronic components are classified in accordance with their respective heat generation amounts and respective heat resistance performances, and include a first electronic component classified as having a heat generation amount greater than a heat generation reference value and a heat resistance performance greater than a heat resistance reference value. The container includes a plurality of accommodation spaces in which the electronic components are accommodated in accordance with their respective classifications. The accommodation spaces include a first accommodation space designed for suppressing heat transfer to other accommodation spaces, and the first electronic component is accommodated in the first accommodation space.