Size of a matchbox, making it the perfect alcohol testing accessory to grab and go.
FDA Approved / DOT Compliant / CE Certified / NHTSA Compliant - Meets all federal requirements for a breath screening device.
PERSONAL BREATHALYZERS
BACtrack Go Keychain Gen2 Breathalyzer
FDA Approved / DOT Compliant / CE Certified / NHTSA Compliant - Meets all federal requirements for a breath screening device.
Ideal Application: Compact & Economical
The Go Keychain Gen2 ranks among the most compact and stylish breathalyzers available today. Its Advanced MicroCheck® sensor swiftly and precisely measures Blood Alcohol Concentration (BAC). Utilizing proprietary sensing technology along with a uniquely calibrated algorithm, it provides results that are unmatched at this price range.
Advantages
- Advanced MicroCheck® Sensor
- Compact Design
- Simple-to-Read LCD Display
- Fold-Away Mouthpiece
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Same Day Dispatch
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1-3 Year Warranty
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New Zealand Owned
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New Zealand's Industry Specialist
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Latest MicroCheck® Sensor Technology:
The proprietary Advanced MicroCheck® Sensor technology provides dependable and precise BAC results that you can rely on.
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Efficient Breath Capture:
The innovative fold-out mouthpiece guarantees that solely your breath enters the breathalyser, effectively excluding ambient air, fumes, and other airborne gases.
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Compact Design:
Compact enough to fit in a purse or pocket, it can also serve as a convenient keychain breathalyser.
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Bright LCD Screen:
BAC results are shown on a bright blue LCD display that is easy-to-read, making it an easily recognisable format.
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Single-Touch Operation:
Press the power button and initiate your alcohol test within seconds.
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Automatic Power Off:
The personal breathalyser is designed to automatically shut off after 10 seconds in order to conserve battery life.
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Flow Error Warning:
Notifications will be issued if the breath sample lacks sufficient consistency for a precise reading.
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Warranty:
A complete one-year manufacturer's warranty is provided (valid in NZ, not applicable in the US).
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Sensor Technology:
Advanced MicroCheck® Sensor Technology
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Sensor Accuracy:
+/- 0.01 at 0.05 %BAC
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Dimensions:
6.2 x 3.7 x 1.4 cm
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Weight:
56 grams (with mouthpiece and battery included)
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Power Supply:
1 x AAA Duracell battery (included)
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Battery Life:
Approximately 75 tests
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Warm up Time:
11–12 seconds Approx. (depending on last use)
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Response Time:
5 seconds
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Blowing Time:
5 seconds
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Detection Range:
0.00 – 0.40 %BAC
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Operating Temperature:
0-40 °C
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1 x BACtrack Go Keychain Gen2 Breathalyser
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1 x BACtrack Go Keychain User Manual
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3 x Individually Wrapped Mouthpieces
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1 x Duracell AAA Alkaline Battery

Personal Breathalyzer
Practical Applications
Pocket Sized Convenience
Unbeatable Value
The BACtrack Go Keychain Gen2 offers the most economical testing from the world’s leading brand.
Reviews
A summary of what our valued customers think about the BACtrack Personal Breathalyzer Go Keychain Gen2
4.1
539 Reviews
82%
of respondents would recommend this to a friend
- 5 stars 309
- 4 stars 119
- 3 stars 37
- 2 stars 28
- 1 star 46
Frequently Asked Questions
We have 2 x shipping options:
• Uninsured: $12.97
• Insured: $14.97
Each of our breathalyzers comes with a warranty that varies between 12 and 36 months. To submit a warranty claim, please log in to your account.
All orders submitted prior to 9am each weekday will be shipped on the same day.
To help you choose the right product for your needs, please click on the blue “Help Me Choose” button located at the top of every webpage. Additionally, you may refer to our three detailed Buying Guides. They can be accessed here: Personal Breathalyzer, Workplace Breathalyzer, or Workplace Drug Test Kits.
In New Zealand, law enforcement upholds a maximum allowable Blood Alcohol Concentration (BAC) limit of 0.05% (250 mcg/L). For restricted licenses, which often apply to younger drivers or those with prior penalties, a BAC of 0.00% is generally required.
The accuracy of a breathalyzer is influenced by the quality of its internal sensor and its overall design.
The fuel-cell sensor units offered by Breathalyzers New Zealand are exceptionally precise, with capability to measure to the thousandth decimal place.
It is essential to operate breathalyzers properly and to recalibrate them in accordance with the specific servicing needs of each model.
Before taking the test, it is crucial to wait 15–20 minutes after your last consumption of alcohol, food, or other liquids before using your breathalyzer. For personal use devices, please allow a 3-minute gap between consecutive tests to allow the sensor to reset.
Avoid using hand sanitiser or any alcohol-based cleaning products near the testing area. Conducting tests outdoors can help reduce the risk of ambient readings. Make sure the mouthpiece is firmly attached, take a deep breath, and most importantly, blow steadily until you hear a click. Failing to blow consistently will result in an error, as the device will not receive a complete sample.
Fuel-cell models typically offer 5 years+ of service if they are maintained within calibration and if the care guidelines are adhered to. However, as technology progresses, it is likely that a new device will need to be acquired.
BACtrack Go Keychain Gen2 Breathalyzer
The BACtrack Go Keychain Gen2 breathalyzer is the ideal device for those looking for convenient alcohol testing on the go. This compact device serves as a practical solution for checking your BAC before driving, returning home, or making important decisions after consuming alcohol. Its lightweight design ensures it can be easily carried daily without adding extra bulk to your pocket, bag, or keys.
If you need a trustworthy breathalyzer keychain, a portable BAC keychain, or a handy keychain breathalyzer, the Go Keychain Gen2 offers reliable performance in a travel-friendly format. Designed for regular use, it provides a quick and straightforward testing experience that empowers users to stay informed and make more responsible choices after drinking.