What’s in the Watchdog Box?

Rottweiler Fuel Cell Breathalyzer

5 out of 5 based on 3 customer ratings
(3 customer reviews)


Alcohol is one of the most socially encouraged and celebrated substances in the world. However, a persons Blood Alcohol Content (BAC) is nearly impossible to guess and extremely dangerous to do so. As motorist laws are getting more aggressive, the consequences of driving while intoxicated are becoming more detrimental to individuals, families, and society.

Watchdog Breathalyzer has created the best solution to this problem by providing highly accurate and reliable breathalyzers to take the guesswork out of knowing when you’re safe to drive after drinking. With a focus on superior accuracy, Watchdog Breathalyzers exclusively use police-grade fuel-cell sensors, which are far more superior and reliable than the cheaper semiconductor sensors used in many breathalyzers sold today.

Watchdog helps people avoid criminal records, jail time, injury, and financial losses resulting from a DUI. The alcohol industry preaches “Drink Responsibly” and Watchdog is a man’s best friend in helping them do exactly that.


SKU: #WD101 Category: Tag:

Product Description

Features:Rottweiler Fuel Cell Breathalyzer with Mouth Piece Unit

  • Police grade fuel cell sensor for accurate and reliable results.
  • Simple one button operation to quickly produce accurate results.
  • Audible sound alert and display color change when test result is above 0.050
  • Very compact in size.
  • Replaceable, sterile mouthpieces for testing multiple users.
  • Four digit readout (0.000%).
  • Number of previous tests displayed during startup.
  • Low battery indication with auto power off function.
  • If breath sample was blown too gently for accurate results, “error” symbol will flash.
  • One touch simplicity
  • Highly accurate fuel cell sensor (Same Technology as Police Breathalyzers)
  • Compact Size

Each unit comes with:

  • 2 AAA Batteries
  • Protective carrying pouch
  • 5 replaceable mouthpieces
  • User manual

Additional Information

Weight .05 lbs

3 reviews for Rottweiler Fuel Cell Breathalyzer

  1. 5 out of 5


    The beginning of a revolution. I had originally bought the Rottweiler as a toy and it slowly turned into a necessity. I never leave the house without it. I store it in my car’s glovebox and it usually ends up being the deciding factor whether I can leave a party sooner rather than later. Even when I blow close to the legal limit it becomes handy because it reminds me that I must drive more carefully then if I had clearly blown below the limit. It may not be the most visually pleasing of breathalyzers (it looks super-outdated) but the fuel cell is what makes this specimen unbelievably accurate. I have had breathalyzers before and the feel and quality of this one is outright superb! Definitely 5 stars from me!

  2. 5 out of 5

    (verified owner):

    Great breathalyzer. I’ve had a few other ones and this is by far the best. It gives a very accurate reading, going to the third decimal point. It’s a good size to keep in your glove box and comes with a case for safe keeping. It’s also lights up red when it’s probably not a good idea for you to drive at your current state. Overall, a solid buy. If you’re thinking about getting a cheaper one, this one is definitely worth the extra money. It’ll last longer and give you a more accurate reading. Highly recommended.

  3. 5 out of 5


    Superior in Accuracy! This breathalyzer is consistent and correct! The ones I’ve seen before give a different reading each time you use it… After researching and looking for what matters, which is the quality of the fuel cell, the Watchdog is far superior to all others. I’ve had mine for almost a year and it is still working perfectly. Watchdog is the Cadillac of the breathalyzers that are on the market. Highly recommended!

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