Product details
Overmax AD-05 professional breathalyser with electrochemical sensor
Want a straightforward, trustworthy way to check if you’re safe to drive after a night out or a few drinks? The Overmax AD-05 is exactly that — no faffing, no guesswork. It uses a police‑grade electrochemical platinum sensor, so readings aren’t easily thrown off by things like mouthwash or strong after‑dinner mints. In short: the figure on the screen is a number you can rely on.
Key features
- Electrochemical platinum sensor – the same tech used in professional breathalysers, offering precision you can trust in a consumer device.
- Fast readiness – the unit gets ready in around 5 seconds and gives a prompt result, so you’re not hanging about.
- Measurement range 0.00‰ to 2.00‰ with accuracy up to ±0.07‰ – covers the sort of levels drivers most often need to know about.
- Dual‑colour LCD and audio alerts – clear visual cues and beeps make the result obvious even in poor light or when you’re in a hurry.
- Three mouthpieces included – handy for sharing with friends or colleagues without skimping on hygiene.
- 24‑month free calibrations – keeps the unit accurate for longer and saves on maintenance.
Why this matters
Knowing your blood alcohol concentration (BAC) after social drinking is simply sensible. The AD-05 cuts through the guesswork: instead of relying on how many pints you had or how you feel, you get a clear number and can make a sensible call. It’s about safety, responsibility and avoiding costly mistakes.
Typical uses and situations
- Coming back from a party, meal out or the pub and unsure whether it’s safe to drive — check before you turn the key.
- Employers or workplace safety checks where a quick, reliable screening is needed.
- Groups of friends sharing one device — three mouthpieces make that straightforward and hygienic.
- Anyone wanting a bit of peace of mind and to avoid penalties or risky decisions.
Technical details and practical notes
The AD-05 weighs about 37.5 g and measures roughly 5.7 x 11 x 1.7 cm, so it slips easily into a glove box or bag. It runs on two AAA batteries (not included) and shows results on a bright dual‑colour LCD, backed up by audible alerts for different levels. Readings are shown in ‰ (permille) across a 0.00‰–2.00‰ range. Free calibrations for 24 months are included — a nice saving if you use it regularly.
A couple of sensible pointers: wait a few minutes after drinking before testing to avoid falsely high readings from residual mouth alcohol, and if the battery looks low, change the batteries before relying on a result. Also, while the sensor is police‑grade, this is a consumer device — for any official or legal testing, follow the procedures of the relevant authorities.
What’s in the box
- Overmax AD-05 breathalyser unit
- Three disposable mouthpieces
- User guide and warranty/calibration information
In short, the Overmax AD-05 is a compact, no‑nonsense breathalyser for drivers and safety‑minded people. It gives quick, easy‑to‑read results, takes away a lot of the uncertainty after drinking, and is a sensible bit of kit to keep in the glove box.





