If you’re going to get behind the wheel, the only safe amount of alcohol to have in your system is zero. But we know that people often indulge in one or two drinks before driving, so if you’re going to drink, knowing your limits is a must. That’s why we recommend purchasing a police-grade breathalyzer.
The below models are professional- and personal-grade breathalyzers that help people make informed and smart decisions when drinking. They can be for personal use, like confirming that you are safe to get behind the wheel after having a drink. They can also be used in professional settings, like at jobs, in schools, at bars or music festivals and in other places where it’s essential to cover the safety of employees and attendees and ensure that no one is over-served.
Take a look through our list of great breathalyzers below.
1. BACtrack Trace Breathalyzer
If you want the smallest and most lightweight professional grade personal use breathalyzer on the market, we recommend the BACtrack Trace Breathalyzer. Weighing only 3.04 oz and measuring smaller than an iPhone 5, the Trace delivers a 9/10 rating on the accuracy scale. Blow in for five seconds and receive an accurate reading 10 seconds later, with the Trace able to store the last 10 readings for convenient reference.
Pros: The police-grade Trace breathalyzer is approved by DOT/NHTSA and it’s approved by the FDA as a medical device.
Cons: Unlike the C6, the Trace does not feature Bluetooth connectivity.

2. iSOBER 10 Breathalyzer
Confirmed by the DOT and NHTSA, the iSOBER is a handy breathalyzer that will actually pair with your phone thanks to the companion app. Likewise, the technology behind this device is also very impressive. The breathalyzer utilizes fuel cell technology which allows it to grab an impressively accurate rating even over a lengthy test. Even better, you can share where and when you take the test via the app.
Pros: Works with app, extremely accurate.
Cons: May have trouble syncing to app.

3. BACtrack C6 Keychain Breathalyzer
Get an estimate on when your blood alcohol level will return to 0.00% with the BACtrack C6 Keychain Breathalyzer, which uses ZeroLine technology to inform users when they can expect to be sober. The C6 uses the high grade BluFire fuel Cell sensors to provide BAC readings.
Pros: Make the safe and smart decision with the BACtrack C6 Keychain Breathalyzer, which features Bluetooth connectivity and enables users to call Uber directly from the C6 app. Results can also be sent directly to the C6 app for reference.
Cons: Unlike the Trace and S80, the C6 is not a professional breathalyzer and is not nearly as accurate.
