... restaurant, hotel AT309 is a coin-operated and wall-mount breath alcohol tester which is suitable for public ... use in bars, restaurants, nightclubs, big companies or anywhere alcohol ... 50°CWork humidity: less than 95%RH (No Dews)Battery: 2×AA NiMH batteries, rating capacity: 2.1AHDimension ... per carton, 9.00Kgs per carton AT309 Wall mounted alcohol tester