9 ELECTRONIC APPARATUS AND INSTRUMENTS FOR MEASURING THE CONCENTRATION OF ALCOHOL IN A PERSON'S BREATH; ELECTRONIC APPARATUS AND INSTRUMENTS FOR MEASURING THE QUANTITY OF CHEMICALS CAUSING A PERSON'S BAD BREATH; BODY WEIGHT SCALES, BABY WEIGHT SCALES, KITCHEN SCALES, BATHROOM SCALES, INDUSTRIAL SCALES, SCALES FOR COMMERCIAL USE, BODY WEIGHT SCALES WITH BODY FAT ANALYZER; PEDOMETERS; ELECTRONIC APPARATUS AND INSTRUMENTS FOR ANALYZING WATER QUALITY, ELECTRONIC APPARATUS AND INSTRUMENTS FOR MEASURING THE QUANTITY OF RESIDUAL CHLORINE AND OTHER CHEMICALS IN WATER; ELECTRONIC APPARATUS AND INSTRUMENTS FOR MEASURING AND CHECKING THE CONDITIONS OF SKIN; ELECTRONIC APPARATUS AND INSTRUMENTS FOR MEASURING THE QUANTITY OF CHEMICALS CAUSING BAD SMELL AND OTHER CHEMICALS IN AIR; ELECTRONIC APPARATUS FOR MEASURING THE QUANTITY OF CHEMICALS CAUSING BODY ODORS; METRONOMES