Breathalyser Calibration
Regular calibration is essential to keep your breathalyser accurate and reliable. Over time, sensors, which measures breath alcohol content, can drift. This in turn can impact results if not properly maintained.
For workplace alcohol testing, routine calibration is also required to stay compliant with relevant standards.
At Sober Check, we carry out in-house calibration for all breathalysers we supply, using both wet bath and dry gas methods. This ensures consistent and dependable performance.
Calibration frequency depends of the model:
- Lifeloc LT7 – every 12 months
- All other models – every 6 months
This aligns with AS 3547:2019 requirements for workplace alcohol testing.
If your model isn’t listed on our site, get in touch. Our team can confirm calibration options or recommend alternative options. However, if your device is due for replacement, you can view our full range of breathalysers here.
We also occasionally have refurbished units available. If you’re interested, let us know and we can advise what’s currently in stock.
To book a calibration, simply complete the form below and send your device to us.
Once received, calibration is typically completed and return within 48 hours.






