AlcoSense Excel Breathalyser: Specifications and Safety Notes
At a glance
- What it is: A personal fuel cell breathalyser with a colour screen, from AlcoSense.
- Key specifications: 64 mm² fuel cell sensor; accuracy +0.15‰ / -0.00‰ BAC (designed to read slightly high); reads after 1 litre of breath; stores 24 tests; 107 x 55 x 29 mm (AlcoSense).
- Suits: People who want a more careful personal tester than a basic semiconductor unit.
- Skip if: You are not willing to recalibrate it every 12 months at £29.99.
We haven’t tested this product ourselves. This page summarises the maker’s page, checked 19 October 2026. A breathalyser is a guide, not proof you are fit to drive: the only safe amount to drink before driving is none.
Specifications
| Specification | Detail | Source |
|---|---|---|
| Product | AlcoSense Excel fuel cell breathalyser | [1] |
| Sensor | Fuel cell, 64 mm² | [1] |
| Accuracy | +0.15‰ BAC, -0.00‰ BAC; designed to read slightly high, not low | [1] |
| Readings | Up to 2.0‰ BAC; two decimal places; mg/L or ‰ BAC | [1] |
| Breath sampling | Reads after 1 litre of air; temperature compensated | [1] |
| Memory and limits | Last 24 tests; adjustable to any limit | [1] |
| Calibration | Every 12 months with a reminder at 11 months; £29.99 including VAT | [1] |
| Operating temperature | 5 to 40 °C (the unit’s own temperature) | [1] |
| Size and power | 107 x 55 x 29 mm; 3 x AAA batteries; micro USB cable in the box | [1] |
| In the box | Breathalyser, 3 x AAA batteries, 5 mouthpieces, manual, micro USB cable | [1] |
| Warranty | 12 months, or 3 years if registered | [1] |
| Price, weight | Not shown on the page; not verified | n/a |
What owners report
We have not reviewed owner feedback for this product.
Known issues and safety
Recall check: we searched GOV.UK product safety alerts, reports and recalls (Office for Product Safety and Standards) for “alcosense” and “breathalyser” on 19 October 2026 and found no results for either [2]. Check the list again for the exact model.
Alcohol levels can keep rising after your last drink, so a low reading soon after drinking does not mean you are safe to drive. The maker says to recalibrate every 12 months [1].
Questions people ask
How is it different from the Lite 2?
It uses a fuel cell sensor of 64 mm² against the Lite 2’s 19 mm² semiconductor sensor, measures breath volume, and stores 24 results [1]. See our Lite 2 page.
Does it read high or low?
AlcoSense says it is designed to read slightly high, not low [1].
How much does recalibration cost?
£29.99 including VAT [1].
Alternatives
- AlcoSense Lite 2: See our separate page.
- Other car accessories: See our car accessories hub.
Our verdict
Based on the evidence, this suits people who want a more careful tester and will pay for yearly recalibration. We could not confirm the price. This is a research summary, not a test result.
Sources
- AlcoSense Excel Fuel Cell Breathalyser, AlcoSense, alcosense.co.uk. The page shows no date. Checked 19 October 2026.
- GOV.UK searches of product safety alerts, reports and recalls for “alcosense” and “breathalyser”, Office for Product Safety and Standards, gov.uk. Searched 19 October 2026.