“I enthusiastically support BACtrack breathalysers”
– Dr Phil, The Dr Phil Show

BACtrack Go Keychain

The World Leaders in Breathalysers

BACtrack Go Keychain is the smallest, sleekest accurate alcohol breath tester on the market.

The advanced MicroCheck® sensor determines BAC quickly and accurately; and the mouthpiece folds away to protect it while not in use. Proprietary sensing technology plus a specially tuned algorithm, deliver accurate results unparalleled at this price point.



No Additional Mouthpieces
No Additional Mouthpieces No Additional Mouthpieces
10 Additional Mouthpieces 10 Additional Mouthpieces
20 Additional Mouthpieces 20 Additional Mouthpieces
Same Day Dispatch
12 Month Warranty on all Products
New Zealand Customer Services

What our customers are saying

We like to enjoy a couple of drinks when we go out for dinner. Now we can without the worry of DIC.

Super fast shipping. Received within 24 hours. What a great quality product!

Our ED relies on accurate patient diagnosis to make critical decisions. We choose BACtrack.

Peace of mind for both us and our kids. The app allows us to check that they are safe. Thank you.

Love the accuracy. Exact same as the roadside test when we were pulled over. It’s so reliable.

We have zero alcohol tolerance. We partner with BACtrack and are committed to a safe workplace.

Who knew we would finally grow up and become sensible? Eliminating risk is a no brainer.

Everyone should have a breathalyser who consumes alcohol, it is not a luxury item, it’s a necessity

I have an interlock and I don’t want to make the same mistake again. Now I have certainty.

Our company specialises in the operation of heavy machinery. We have entrusted BACtrack for years.

Proprietary Sensor Technology.
Unparalleled Precision.

Every BACtrack breathalyser is engineered around the two factors
that most influence accuracy: sensor type and breath capture.

Advanced MicroCheck® Sensor Technology

Our personal breathalysers employ Advanced MicroCheck® Sensor Technology. These sensors go through a patented burn-in process, which delivers more accurate and reliable results when compared to standard semiconductor sensors.

Effective Breath Capture

Breathalyser test accuracy begins with an effective breath capture mechanism. BACtrack alcohol breathalysers are carefully designed to exclude ambient air, fumes and other airborne gases that contaminate results.

Product Information

  • Advanced MicroCheck® Sensor Technology: Proprietary Advanced MicroCheck® Sensor technology delivers reliable, accurate BAC results you can trust.
  • Effective Breath Capture: The innovative fold-out mouthpiece ensures only your breath goes into the breathalyser test, while ambient air, fumes, and other airborne gases are kept out.
  • Ultra-Compact Design: Fits inside a purse or pocket and can be easily used as a keychain portable breathalyser.
  • One Button Operation: Press power and begin your alcohol test in seconds.
  • LCD Screen: BAC results are displayed on a bright blue, easy-to-read LCD display.
  • Flow Error Indicator: Alerts if the blow is not consistent enough for the breath test sample to be taken.
  • Warranty: Full 1-year manufacturers warranty (upheld in NZ, not the US)
  • 1 x BACtrack Go Keychain Breathalyser
  • 1 x BACtrack Go Keychain user manual
  • 1 x Duracell AAA alkaline battery
  • 3 x Mouthpieces
  • Mouthpieces: 3 x hygienic mouthpieces (included)
  • Auto Power Off: The personal breathalyser will automatically power down after 10 seconds to save battery
  • Power Supply: 1 x AAA Duracell alkaline battery (included)
  • Battery Life: 75 tests
  • Sensor Technology: Advanced MicroCheck® Sensor Technology
  • Sensor Accuracy: +/- 0.01 at 0.05 % BAC
  • Detection Range: 0.00 – 0.40 %B.A.C
  • Dimensions: 6.2 x 3.7 x 1.4 cm
  • Weight:  56 grams (with mouthpiece and battery included)
  • Warm up Time: 11 – 12 seconds (depending on last use)
  • Response Time: 5 seconds
  • Blowing Time: 5 seconds
  • Operating Temperature: 0-40 °C