Blood Alcohol Content Estimation
Breathkey keychain breathalyzer smallest most reliable breath alcohol testerClick for large imageget the most reliable breathalyzer nowKey chain Breathalyzerhow does the breathkey digital breathalyzer work?

* This BAC calculator gives only a very rough estimate of your BAC level, and should not under any circumstances be used to determine if you are safe for driving or for any other activity.

BreathKey Portable breathalyzer, be smart, be safe, be sure

You probably have no idea what your blood alcohol level is after a few drinks.  You feel fine, but are you over the legal limit? BreathKey was developed to help you measure your blood alcohol level and protect you and others from severe consequences.

There’s nothing new about breathalyzers.  These devices have been around prior to the 1940's.  The technology has advanced and the devices have become more reliable and more affordable.  Breathalyzers can come in a variety of sizes and with varying capabilities.  BreathKey is one of the most accurate and affordable units on the market today.  Developed by the same engineer who designed the breath alcohol ignition interlock systems used by the courts in almost 40 states, BreathKey, with its keychain design, is the smallest, lightest, and most reliable digital breathalyzer on the market today for the price when compared with other breathalyzers.   It combines lightweight portability with accuracy and makes for a reliable breathalyzer you can depend on.

BreathKey gives you an accurate and reliable reading each and every time you use it.  The BreathKey measures your Blood Alcohol Content or BAC and gives you quick results so you know how to plan.

It’s noteworthy to mention that the legal limit for driving while intoxicated is .08% BAC, but even with a lower BAC reading you could be too inebriated to operate a motor vehicle and would still be held accountable for drunken driving.

Drinking and driving is illegal and dangerous.  The purpose of devices such as the BreathKey is to give an accurate reading for levels of intoxication.  Breathalyzers cannot tell you if you are too impaired to operate a motor vehicle; only you can make that decision.  It’s never a good idea to drive after drinking, despite what reading a breathalyzer may give you. 

A breathalyzer is simply a tool to aid you in making a responsible decision.  The best plan is to decide before you drink what or who will be your mode of transportation back to a safe place.  When that is not an option, the BreathKey can be a tool to be used for an educated decision. 

breathalyzer benefits

  • Convenient keychain design means it’s always with you
  • Durability tested to withstand daily use
  • FDA certified for safety and reliability
  • Lifetime battery for many years of use
  • breathkey breathalyzer keeps you safe
  • Only consumer breathalyzer with fuel cell alcohol sensor like law enforcement
  • Ready to use seconds after turning on
  • Deep-air sample for increased accuracy
  • Best value for a reliable and easy to use
    digital breathalyzer
  • Inconspicuous way to be safe and responsible when drinking



Be responsible. Don't drink and Drive. get the breathkey key chain breathalyzer today.