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Calibration Certificate for AlcoHAWK PT500/PT500P and PT750 

 Please note: Do not send batteries or any mouthpieces as they will not be returned. Certificate must be used by May 30 2024. 


How to proceed following your calibration purchase:

After ordering you will receive your personalized Calibration Certificate via email as an attachment. This will be sent to the same email address you provide us (please provide an email, do not use the text option as we can not text this). You will receive the email within hours to 1 business day.

1. Print a copy of the Calibration Certificate and place it in a package with product.

2. Ship the unit to the following address:

Quest Products
Attn: Service Center
8201 104th St Ste 200
Pleasant Prairie, WI 53158

To ensure delivery and tracking of your unit, we recommend that you use delivery confirmation with the shipment.

3. After we receive your unit it will be verified and a service technician will calibrate the unit and will be shipped out within 5 business days.



Having your AlcoHAWK breathalyzer regularly serviced is a great idea and protects your investment, just as you routinely change the oil in your automobile to prolong the life of your engine. To ensure optimal performance we recommend sending your unit in for servicing (includes a full diagnostic check with calibration) at least once every 6-12 months depending on frequency of use and your testing protocol. 

What's included?
Once your AlcoHAWK breathalyzer is received our technicians will conduct a full diagnostic check and calibrate the device. The diagnostic check includes checking the battery cover, battery wire connections, display, operation buttons, audio alerts and mouthpiece inlet/outlet.

What is Calibration?
Over time, all breath alcohol detectors may need to be recalibrated. Calibration is a process of adjusting the internal software so that the device can gauge specific blood alcohol concentration (BAC) levels. If the sensor becomes saturated, then the results of the device can become skewed. This is due to the fact that the manufacturer originally calibrated the device at a time when the sensor was unsaturated. The calibration process is similar to winding or replacing batteries in a clock . When the clock is first set it displays the accurate time. However, over time the clock can gradually drift a few minutes, and eventually can be off by a reasonable amount if you do not occasionally reset the clock.