Latest Genuine official Greenwon Model AT-818 Backlit Digital Alcohol Breath Tester Analyzer with Advance Precision High Accuracy Sensor. Features: Advanced Precision flat-surfaced semiconductor sensor This machine is reusable as many time as you want. Comes with 5 mouth pieces (mouth pieces can be washed and sanitizer for reuse) Quick response. SMD assembling, stable performance. Direct testing process LCD indication. Digital LCD display with blue backlight. Portable Pocket size and fashion design. Audible warning beyond preset limit. Sensor fault self checking. Battery saved design,low voltage indication. Digital LCD display. Description: Professional Breathalyzer Tester Breath Alcohol Tester safety for drivers Warm up within 20 seconds Broad range. Auto warning beyond pre-set limit. Works EVERY time. Digital Output. Power saving design. Low battery alert. Instructions included. Compact and lightweight design--fits into purse or pocket easily. Easy to use. Specifications: Model: AT818 Detection Range: 0.000-0.199 % BAC ; 0.00 - 1.990‰ BAC; 0.00 - 0.990 mg/L(BrAC); 0.00 - 199mg/100mL Alarming Threshold: 0.05% BAC; 0.50 g/L; 0.50‰ BAC; 50 mg/100mL Test Accuracy: ±1% F.S Working Voltage: DC 5V 3xAAA batteries(not included) Working Current: ≤120mA Environmental temperature:-10° to 50° Relative Humidity ≤95% Display: 3 digits LCD display with blue backlight Battery Expectancy Time: ≥2000 Times Size:103 x 65 x 27mm(LxWxH) Weight: 76.5g Package Content: 1 x Alcohol Tester AT-818 5 x Mouthpieces 1 x User manual 1x Carrying Case 1 x Retail Box Terms and Condition:- All orders placed before 3PM will be dispatch on the same day for next working day delivery. 95% item delivers next working day however we were advised by courier some packages may be delayed so please allow upto 2 working days for delivery. International delivery time vary.