... AT309 is a coin-operated and wall-mount breath alcohol tester which is suitable for public use in bars, restaurants, nightclubs, big ... ,mg/100ml,g/l ,% BAC optionalCoin for single time: 0—15 (For 0, the tester can be tested without coin).Coin diameter ... breath.Certificate: CE, RoHSPackage:Standard: Carton packing for each piece.1pc per carton, 9.00Kgs per carton AT309 Coin operated alcohol tester