Features 1 after drinking , it is recommended to wait 20 minutes before testing, because alcohol takes about 20 minutes into the blood from the digestive organs,and residual alcohol in the mouth takes time to dissipate . 2 To get a more accurate result,the distance should be at least three minutes between each test . 3 Do not use benzene , gasoline and thinners cleaning product ingredients tester . 4 Do not allow any liquid penetrated into the sensor. this product delivery without battery Tips: In order to get more reliable record as possible, advise that you should make the test after least 45 minutes after drinking.   Features: .Digital alcohol tester with audible alert .Range: 0.00-0.19% BAC & 0.0-1.9g/l .Quick response and resume .Auto power off .Comes with four extra mouth pieces .Key chain .Red LED backlight .Perfectly to fit into your pocket or purse .Accurate Specifications: .Color: Black .Material: ABS .Backlight: Red LED .Accuracy: 0.01% BAC& 0.1g/l .Warm Up Time: Less than 10 Sec .Response Time: Less than 5 Sec .Test Range: 0.00-0.19% BAC & 0.0-1.9g/l .Working Environment Temperature: 10-40 Celsius .Working Environment Humidity: 40%-90% .Power Source: 2 x AAA Alkaline batteries (not included) .Weight: 87.0g .Packaging Dimensions: 142.0 x 110.0 x 35.0mm .Packing: Graphic carton Package Content: .1 x Breath Alcohol Tester .5  x Mouthpieces .1 x User Manual

Please kindly note: Item dispatch from China.

Delivery Time: You will receive your item 8-15 working days once payment is received.

Warranty: 12 Month Manufacturer Warranty.

Returns: 7 days Money Back Guarantee after receiving your order(if the product is not damaged or used).

Please return it in the original packing.

PID: 74451

Why Buy From Us? 7 days Money Back Guarantee after receiving your order. 12 Month Manufacturer Warranty!