Our breathalyser calibration services help maintain the accuracy and reliability of your device, ensuring consistent results when it matters most. Ideal for both individuals and businesses, regular servicing supports long-term performance and compliance.
Support your device with quality breathalyser calibration services and explore our full range of workplace breathalysers and personal breathalysers.
Thousands of
Units Sold
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Get Your Reading in 5 Seconds or less
$110.00
Breatho needs to be calibrated every 6 months. Book yours in advance, and we’ll service your entire device.
$60.50
Calibrating your breathalyser is essential to ensure accurate and reliable measurements of breath alcohol concentration (BrAC).
$90.20
The Drager 4000 is certified to AS3547:2019, with a condition of calibration every 12 months.
Breathalyser servicing is essential for maintaining accuracy, consistency and long-term device performance. A breathalyser sensor can drift over time, which means readings may become less reliable if the device is not regularly calibrated. Professional servicing helps ensure the device is tested, adjusted and checked properly before it is returned to use.
Common benefits of breathalyser services include:
Accuracy support: Helps maintain reliable breath alcohol readings
Compliance support: Important for workplace and professional testing programs
Longer device life: Regular servicing helps reduce premature device issues
Better user confidence: Supports consistent results for personal and business use
For users wanting to understand correct testing steps, Breatho’s breathalyser use guide is a helpful resource to read before using a device regularly.
Using the right accessories helps protect hygiene, airflow, and testing reliability. Mouthpieces are especially important when a device is shared between users, as they reduce cross-contamination and help support proper breath sample collection.
For Drager devices, the Drager Alcotest 3820/4000 Mouthpieces are designed for Drager Alcotest 3820 and 4000 models, with 5 mouthpieces included per box. For Breatho devices, the Breatho Mouth Pieces 50 Pack fits Breatho Personal and Breatho Professional breathalysers, making it a practical option for regular personal or workplace testing.
You should book a service when your breathalyser reaches its recommended calibration interval, starts showing inconsistent readings or displays error messages. Devices used in workplace settings may need stricter servicing routines because they are used more frequently and often support safety or compliance procedures.
A personal device may only need calibration based on time and usage, while professional devices may require more structured maintenance. If the device is used often, shared between users or relied on for workplace decisions, it is safer to service it on schedule rather than waiting for problems to appear.
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of breathalyser innovation.
Every order is sent to you by express mail so you can take your Breatho on your next day or night out.
Safely store your Breatho in your glove box or bag so you can test yourself whenever you need to.
” I bought the item for my niece as a christmas present, she has used it a few times and has been really happy with it. The company also nails the customer service aspect, going above and beyond, and really quick to respond to any messages. Will only buy through Dave and the company in the future,
thank you so much! “
Shaun P.
“Used it for the 1st time on the weekend. I think its pretty accurate as I have a Interlock in my car previously. And know where I’m at usually. Great device. Just would like to know when I should calibrate it?”
Peter M.
” The Breatho was shipped on the day of order and received well before I expected. Very simple to use and a convenient way to have a quick check on how you’re travelling after a couple of quiet ones. Very happy camper so far. “
David S.
Calibration ensures your breathalyser provides accurate BAC readings. Over time, sensors can drift, which affects reliability. Regular calibration helps maintain consistent results. It is especially important for workplace and professional use.
Calibration timing depends on the device model and how often it is used. Breatho states that the Breatho Pro should be calibrated every 6 months, while some Drager devices have a 12 month calibration condition. Personal devices may also require servicing based on usage and manufacturer recommendations. Regular calibration helps protect accuracy and prevents readings from becoming unreliable over time.
During calibration, the breathalyser is tested against a known alcohol reference to check whether its readings are accurate. If the reading has drifted, the device is adjusted so it returns to reliable measurement standards. The service may also include general device checks to make sure the unit is functioning correctly. This process helps restore confidence in future breath alcohol readings.
Yes, a breathalyser can still power on and provide readings even when it is no longer properly calibrated. The issue is that those readings may not be as accurate as they should be. Sensor drift happens gradually, so it may not be obvious during normal use. Calibration confirms whether the device is still reading correctly and adjusts it if needed.
Mouthpieces help guide the breath sample into the device correctly, which supports more consistent testing. They also improve hygiene, especially when a breathalyser is used by multiple people. Damaged, reused, or incorrect mouthpieces may affect airflow and reduce test reliability. Using compatible options like Breatho Mouth Pieces or Drager Alcotest mouthpieces helps protect both cleanliness and performance
Yes, Breatho provides services and products suitable for workplace alcohol testing needs. Professional breathalysers require reliable calibration because they may be used for staff screening, safety procedures or compliance programs. Regular servicing helps businesses maintain consistent testing standards and reduce the risk of unreliable results. Workplaces should keep a clear calibration schedule for every device in use.
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