Advanced flat surface alcohol sensor with quick response. SMD assembly for stable performance. Direct testing process with LCD indication. Digital LCD display with blue backlight. Portable and stylish design. Audible alarm when exceeding preset limit. Sensor fault detection. Power-saving design with low voltage indicator. Digital output. Automatic warning when limit is exceeded. Long working time. Includes user instructions and 10 mouthpieces. Compact and lightweightfits easily into a purse or pocket. Easy to use.Model: AT6000 Detection Range: 0.00 - 0.20% BAC; 0.00 - 2.00 g/L; 0.00 - 1.00 mg/L; 0.00 - 200 mg/100mL Alarm Threshold: 0.05% BAC; 0.50 g/L; 50 mg/100mL Test Accuracy: 10% F.S Working Voltage: DC 5V (3xAAA batteries, not included) Working Current: 120mA Operating Temperature: -10C to 50C Relative Humidity: 95% Display: 3-digit LCD with blue backlight Color: Black Material: Plastic Package Contents: 1 x Alcohol Tester 10 x Mouthpieces Note: Light and screen differences may cause slight color variation. Measurement error allowed: 1-3 cm.