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Member Only Item

BACtrack S78 Pro Breathalyzer Alcohol Tester

Item #595690


Xtend™ Fuel Cell Sensor Technology, Includes Case, 8 Mouthpieces, and 2 Batteries

Online Price
Your Price $79.99
  • Shipping & Handling included *

Member Only Item

The estimated delivery time will be approximately 3 - 5 business days from the time of order.

Dinner with friends, family, or clients often means relaxing with a glass of wine, beer, or cocktail. But when it’s time to go home, how can you be sure where you stand? A DUI can have long lasting consequences on your career, your reputation, and even on your personal life. Stay in control and make more informed decisions with a BACtrack Breathalyzer.  

The BACtrack S78 Breathalyzer is a compact and highly accurate alcohol breath tester that features professional-grade fuel cell sensor technology and convenient one-button operation. Simply press the power button and begin testing in seconds. Designed to reduce unnecessary size and weight, the S78 maintains all the accuracy benefits of a full-sized professional-grade breathalyzer while being far more portable and convenient for everyday use. An internal air pump ensures consistent test results when used in to test multiple times in quick succession. The S78’s small size and affordability make it perfect for anyone – from individuals and businesses to professional groups and treatment centers.


  • Simple one-button operation – press power and begin testing in seconds.
  • Most affordable professional-grade breathalyzer ever offered
  • Under five inches tall and less than an inch thick – take it anywhere alcohol is consumed.
  • Crisp, easy-to-read 4-digit LCD display
  • Precision results display up to three decimal places (0.029%)
  • Automatic breath flow check, miniature internal air pump, and continuous temperature checking help ensure consistent results on repeat tests.
  • Eight replaceable, hygienic mouthpiece included for safe and sanitary testing of others  
  • Xtend™ Fuel Cell Sensor Technology provides enhanced accuracy, from 0.000 to 0.400, plus extended battery life.

  • BACtrack S78 Breathalyzer
  • Soft carrying pouch
  • Two AAA batteries
  • Eight mouthpieces
  • Owner’s Manual
  • One-year warranty

Model: BT-S78

  • Alcohol Detector: Electrochemical Fuel Cell
  • Battery Type: AA Cell
  • Brand: BACtrack
  • Handheld: Yes
  • Model: BT-S78
  • Number of Batteries: 2

Standard shipping via UPS Ground is included in the quoted price. The estimated delivery time will be approximately 3 - 5 business days from the time of order.

Express shipping is via UPS. The estimated delivery time will be approximately 1 - 2 business days from the time of order.

An additional Shipping and Handling fee will apply to express shipments. This fee will be quoted at checkout.

Please choose your shipping method at checkout.

*Delivery is available to Alaska, Hawaii and Puerto Rico. An additional Shipping and Handling fee will apply to shipments going to Alaska, Hawaii or Puerto Rico. This fee will be quoted at checkout. Additional transit time may be required. products can be returned to any of our more than 600 Costco warehouses worldwide.
Membership: We will refund your membership fee in full at any time if you are dissatisfied.

Merchandise: We guarantee your satisfaction on every product we sell with a full refund. The following must be returned within 90 days of purchase for a refund: televisions, projectors, computers, cameras, camcorders, touch screen tablets, MP3 players and cellular phones.

How to Return: For an immediate refund (including shipping and handling), simply return your purchase at any one of our Costco warehouses worldwide. If you are unable to return your order at one of our warehouses, please email customer service or call our customer service center at 1-800-955-2292 for assistance. To expedite the processing of your return, please reference your order number.

If you request an item be picked up for return, the item must be packaged and available for pick up in the same manner as it was delivered.
If your order was delivered "curb side", it will need to be available for curb side pick up.
If the item arrived to you in a box, it will need to be in a box at the time of pick up.

For information or a written copy of the manufacturer's warranty, please contact us at:
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