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