microdetector

[ mahy-kroh-di-tek-ter ]
/ ˈmaɪ kroʊ dɪˌtɛk tər /

noun

an instrument measuring small quantities or changes.
Electricity. an extremely sensitive galvanometer.

Origin of microdetector

British Dictionary definitions for microdetector

microdetector
/ (ˌmaɪkrəʊdɪˈtɛktə) /

noun

any instrument for measuring small quantities or detecting small effects, esp a sensitive galvanometer