BACtrack s75 PrO User Manual

The BaCTraCK offers several user-adjustable features through 

Menu Mode. To enter Menu Mode, turn on the BaCTraCK 

and during the countdown hold MODe for 5 seconds. To move 

between Menu Mode options, press MODe.

  

By default, the BaCTraCK will display test 

results in %BaC, which is the standard in 

north america and in many other regions. 

To change to a different unit of measure, 

press sTarT. You can select Promille (0/00) 

or mg/l as alternate units of measure.

By default, the BaCTraCK does not sound 

an audible warning after a specific %BaC 

result. To set an audible warning after a 

specific %BaC test result, press sTarT  

to cycle through %BaC values. 

The default blow time is 5 seconds.  

a longer blowing time generally provides  

a deep lung air sample and a more 

accurate test result. To adjust the blow  

time, press sTarT.

 

 when the countdown reaches 

zero, “sTarT” will flash and the screen 

will display three lines. Blow through the 

mouthpiece for five seconds until there is  

a double beep sound.

 Once the sensor has analyzed  

the breath sample, the estimated BaC  

value is displayed. 

 

 

If a user does not blow a sufficient breath 

sample, the lCD will display “Flo”.  

Press start to restart the countdown  

cycle and retest.

If there is no breath sample blown within 

15 seconds, the lCD will display “Out”.  

Press start to restart the countdown cycle 

and retest.

If the unit is powered on outside of the 

acceptable temperature range (0-40 °C or 

32-104 °F) the unit will display Out°F and 

testing cannot be performed.

If the battery indicator display is empty, 

install two new alkaline aa batteries. 

START

BAC

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BAC

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mg/L

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