Temperature sensors; Noisemeters; Metal detectors for industrial or military purposes; Electronic stud finders; Water heater controls; Oscillographs; Safety sensors, namely, carbon monoxide detectors, smoke detectors, and combination carbon monoxide and smoke detectors; Laser rangefinders; Metal detectors; Thermometers not for medical purposes; Anemometers; Thermo-hygrometers; Sensors for determining position, velocity, acceleration and temperature