light meter

noun 0.823

photometry

noun 0.784

colorimeter

noun 0.718

radiometer

noun 0.718

exposure meter

noun 0.717

photomultiplier

noun 0.690

spectrophotometer

noun 0.685

photosensor

noun 0.684

energy meter

noun 0.671

ometer

noun 0.663

fluorometer

noun 0.662

polarimeter

noun 0.660

meter

noun 0.655

spectrometer

noun 0.650

nephelometer

noun 0.645

pyranometer

noun 0.635

voltmeter

noun 0.635

photomultiplier tube

noun 0.635

multimeter

noun 0.632

picometer

noun 0.632

pyrometer

noun 0.628

photodetector

noun 0.627

phototransistor

noun 0.625

electrometer

noun 0.625

densitometer

noun 0.625

pyrheliometer

noun 0.624

actinometer

noun 0.623

photoresistor

noun 0.621

photodiode

noun 0.619

reflectometer

noun 0.612

hydrometer

noun 0.611

phototube

noun 0.611

transmissometer

noun 0.608

oximeter

noun 0.605

microplate reader

noun 0.602

cytometer

noun 0.598

micrometer

noun 0.598

manometer

noun 0.595

bolometer

noun 0.595

spectrophotometry

noun 0.595

ammeter

noun 0.595

dosimeter

noun 0.592

photocell

noun 0.592

voltameter

noun 0.592

metre

noun 0.592

urinometer

noun 0.592

keratometer

noun 0.590

psychrometer

noun 0.587

tonometer

noun 0.586

turbidimeter

noun 0.584

colorimetry

noun 0.583

planimeter

noun 0.583

wattmeter

noun 0.583

spectrofluorometer

noun 0.582

electricity meter

noun 0.582

microspectrophotometry

noun 0.581

wavemeter

noun 0.580

photopigment

noun 0.579

microdensitometer

noun 0.578

pedometer

noun 0.577

flowmeter

noun 0.576

photophore

noun 0.573

audiometer

noun 0.572

thermometer

noun 0.569

ohmmeter

noun 0.568

respirometer

noun 0.566

lamp

noun 0.566

coulometer

noun 0.565

scintillometer

noun 0.562

photoelectric cell

noun 0.562

nephelometry

noun 0.562

metering

noun 0.561

ellipsometer

noun 0.561

penetrometer

noun 0.561

photoreceptor

noun 0.559

lysimeter

noun 0.559

actinometry

noun 0.558

anemometer

noun 0.558

radiometry

noun 0.557

profilometry

noun 0.555

clinometer

noun 0.554

tiltmeter

noun 0.553

photoperiod

noun 0.552

calorimeter

noun 0.552

gas meter

noun 0.550

capnometer

noun 0.550

telemeter

noun 0.549

monochromator

noun 0.548

measurer

noun 0.547

metronome

noun 0.545

taximeter

noun 0.545

photoelectrode

noun 0.544

fluorometry

noun 0.544

psychometry

noun 0.544

potentiometer

noun 0.542

calibrator

noun 0.542

polychromator

noun 0.540

photon

noun 0.540

spirometer

noun 0.540

interferometer

noun 0.539