BACtrack VIO, User Manual

14.

15.

REGULAR USE

Your BACtrack is a sensitive instrument. Unlike other electronic 

devices, your breathalyzer shouldn’t be ignored for long periods of 

time. The sensor inside it is delicate and can dry out if left unused 
for too long. In order to keep it in good working condition, we 
recommend that you blow into it at least once a month, even if you 

don’t plan on using it. Breathing into the unit regularly keeps the 
sensor moist and in good working order. Sensors that dry out can 
sometimes require more frequent calibration.

VERIFICATION AND CALIBRATION

Calibration is a normal part of owning and operating a 

breathalyzer. Known alcohol concentrations are passed through 

the sensor to set baseline values for testing. When using your 

breathalyzer, the unit compares your breath samples to these 
baseline values.

The accuracy of breath alcohol testers can fluctuate after six to 

twelve months of normal use, depending on the number of  
tests performed and operating conditions. If this product is 
providing inconsistent test results, is not providing any test 
results, or provides unusually high or low test results, the product 
should be recalibrated immediately by a trained professional.  

Calibration is a normal part of owning and operating a professional 

level breathalyzer. BACtrack recommends that you calibrate 

your breathalyzer at least every 6-12 months, depending on the 
performance you observe and require. If the product is used every 
day, it may need to be recalibrated more frequently.

CALIBRATION INSTRUCTIONS

Please visit http://support.bactrack.com or call 415-693-9756 
for information on how to get your BACtrack Breathalyzer 

recalibrated. 

All breathalyzer calibrations are performed at our facility in San 

Francisco. During recalibration, a professional technician will 

reset the sensor baseline values and also perform a full diagnostic 

check to ensure the accuracy and reliability of the product.

ONE YEAR-LIMITED WARRANTY

BACtrack (a division of KHN Solutions, Inc.) honors limited 
warranty obligations on this product as described herein: 

KHN Solutions warrants this product against defects in 

materials and workmanship under normal use for a period of 
ONE (1) YEAR from the date of retail purchase by the original 
end-user purchaser (“Warranty Period”). Except as provided 

in the preceding sentence or applicable law, KHN Solutions 

provides this product “as is.” If a defect arises and a valid 

claim is received by KHN Solutions within the Warranty Period,