Features: 1. Easy to use, quick response and resume in seconds. 2. Three different LED light to display the blood alcohol content. 3. Keyring design: It is portable, handy and convenience to carry. 4. With a ultra-bright orange light for flashlight torch function. 5. Made of quality material, durable and wear resistant. How to use: 1. Press and hold the power button to warm-up. 2. When warm-up is succeed, just simple blow into the breath inhaler for 3-5 seconds. 3. Read the test result. Only Green LED light on: Safe, the alcohol concentration level is under 0.02% BAC (0.1mg/l BRAC). Only Yellow LED light: Caution, the alcohol concentration level is 0.02% to 0.05%BAC (0.1mg/l BRAC to 0.25mg/l BRAC). Yellow LED & Red LED light both on: Danger, the alcohol concentration level is over 0.05% BAC ( 0.25mg/l BRAC). Specification: Item Type: Alcohol Breath Tester Material: PP Item Color: As Pictures Shown Battery: 2 * AAA Batteries (Not Included) Item Size: Approx. 7 x 3.5 x 2 cm / 2.8 x 1.4 x 0.8 inch Package Weight: Approx. 36 g / 1.3 oz Package Include: 1 * Keychain Alcohol Breath Tester Note: 1. After drinking, it is recommended to wait 20 minutes before testing, because alcohol takes about 20 minutes to enter the blood from the digestive organs, and alcohol remained in the mouth also takes time to dissipate. 2. For more accurate results, the time between each test should be three minutes. 3. Do not clean it by cleaning lotion contained benzene and gasoline. Do not let any liquid into the machine. 4. Please allow 1-3 cm error due to manual measurement. Please make sure you do not mind before you bid.

?WARRANTY?: Tell us if you are not satisfied with our products, we will give you a full refund and we will do everything possible to improve our products and services. For our customers to buy this with confidence, we provide a 30-day unconditional refund or replacement. ?COMPACT AND LIGHT?: only weighs 1.3 ounces, is small enough to fit in a bag or pockets and any other small space. ?EASY TO READ?: Three different LED lights to show the content of alcohol in the blood, make it much easier for night vision and provide professional precision for safe driving. ?SENSITIVE AND HIGH-PRECISION?: The device is equipped with a high-quality fuel cell sensor module for long life and accurate results. Do not use the breath analyzer until 20 minutes have passed since the last drink; Wait at least 3 minutes to begin the next test after the last test. He warned of audio and video, I warn you. ?ENERGY SAVING?: works with two AAA batteries (not included but generally available) Each time you install a battery, you can perform tests more than 80 times. In addition, low consumption instructions are designed.

Batteries required: No. Best Sellers Rank: #301,656 in Health & Household. Customer Reviews: 3.0 out of 5 stars 5 ratings 3.0 out of 5 stars. : B07L134W2L. Manufacturer: TMISHION. Item Weight: 1.13 ounces. Product Dimensions: 2.76 x 1.38 x 0.79 inches.