Opacimeter; Thermostats; Diagnostic apparatus for testing food; Electric motor control units for swimming pool, spa, water park and fountain pumps; Food safety monitoring devices, namely, thermometers, alarms; Meat thermometers; Multi-function electronic device for use in children's rooms comprising a sound producing function, temperature gauge and also including a clock and nightlight; Noise cancelling headphones; Safety sensors, namely, carbon monoxide detectors, smoke detectors, and combination carbon monoxide and smoke detectors; Temperature switches