Breathalysers

Browse our range of breathalysers for sale online below. Please contact our customer support team via chat, telephone or email during our office hours, if you need any help or advice choosing the best breathalyser for your requirements.

17 products

Buy a breathalyser 

Why choose a breathalyser?

Driving under the influence of alcohol is one of the most common causes of accidents. A personal or workplace breathalyser gives you the power to check your breath-alcohol concentration before getting behind the wheel or allowing someone into a safety-sensitive role.

In the UK, the legal driving limit for most drivers is 35 μg of alcohol per 100 ml of breath (80mg per 100ml blood). Scotland has a slightly lower limit of 22 μg of alcohol per 100 ml of breath (50 mg of alcohol per 100 ml of blood )(0.05 % BAC).

Whether you’re a private motorist, fleet operator, employer or event organiser, ensuring sober driving or staff readiness helps protect both individuals and organisations.

Our range of breathalysers for sale online offer fast, reliable alcohol testing for both personal and professional use. Whether you're checking your own alcohol levels before driving or carrying out workplace alcohol screening, our breathalysers provide accurate readings in seconds. We stock both single-use and reusable digital breathalyser models, including UK-approved devices used by professionals. Easy to use and highly effective, a breathalyser can help to promote safety and responsible alcohol monitoring.

What kinds of breathalysers do we stock?

At UK Drug Testing we curate a broad range of breathalysers, designed for different needs:

  • Personal/consumer models – compact, easy to use, ideal for checking whether you’re safe to drive or for home-use after a social event.
  • Workplace & professional devices – higher-grade units with improved sensor technology, featuring replaceable modules or calibration services, suited for employer testing or safety-critical roles.
  • Single-use/disposable breathalysers – straightforward, budget-friendly devices for occasional checks or as backup kits.
  • Breathalyser accessories & maintenance – mouthpieces (single-use for hygiene), replacement sensors and carry-cases.

There are two main types of breathalysers

  1. Digital breathalysers including police grade breathalysers, workplace breathalysers and personal breathalysers.
  2. Breathalyser test kits- single use disposable chemical breathalysers.

We also stock replacement breathalyser sensors and mouthpieces 

How does a breathalyser work?

A breathalyser is a device used to measure the amount of alcohol in a person's breath Breath Alcohol Content (BrAC), which correlates closely with their Blood Alcohol Content (BAC). A breathalyser test using either a digital breathalyser or a disposable breathalyser test kit can provide a non-invasive and quick method to estimate an individual's level of intoxication with alcohol, which is plays an important role in ensuring workplace safety , monitoring underage drinking or for personal use to ensure safety.

Key points about breathalysers:

  • Accuracy: Different types of breathalysers have varying levels of accuracy. Fuel cell and infrared spectroscopy breathalysers are generally more accurate than semiconductor breathalyser sensors.
  • Breathalyser Calibration: Digital breathalysers need regular calibration to maintain accuracy. Some digital breathalysers now come with clip in clip out replacement sensors which makes recalibration simple. Breathalyser kits are single use and should be disposed of after use. They can not be recalibrated or re-used. 
  • Legal Limits: Legal BAC limits for driving vary by country and even within province within countries. For example the legal limit in Scotland is lower than in England and wales even though they are all part of the United Kingdom. Information on legal alcohol limits driving for UK and abroad.

Choosing the right breathalyser device – what to look for

Not all breathalysers are the same. Here are some key features to consider:

  • Sensor type: Fuel-cell sensors provide superior accuracy and reliability, especially for frequent or professional use.
  • Calibration: Regular calibration or sensor replacement ensures accurate readings over time.
  • Accuracy rating: If you are testing in a workplace environment, look for a breathalyser with strong accuracy credentials.
  • Ease of use: Clear displays, prompts and good ergonomics help reduce testing errors.
  • Hygiene: For multi-user devices, single-use mouthpieces or individually assigned reusable mouthpieces are recommended.
  • Compliance needs: For evidential use, ensure the device meets appropriate UK standards and approvals.
  • Usage frequency: Personal occasional use may only require an entry-level model; daily screening calls for a higher-spec machine.

Breathalysers are useful in a wide range of situations:

  • Private motorists – check alcohol levels before driving the morning after drinking.
  • Fleet & logistics operators – ensure drivers are fit to work and compliant with company policies.
  • Workplace safety-critical roles – protect employees working with machinery or hazardous operations.
  • Events, schools or sports venues – maintain a safe environment where alcohol may be present.
  • International or holiday driving – some countries enforce lower alcohol limits, making self-testing essential.

An alcohol breathalyser test provides a non-invasive and quick method to estimate an individual's level of alcohol intoxication, which is crucial for workplace, schools and personal use to ensure safety. 

FAQs at a glance

How accurate are breathalysers?
Accuracy varies with the sensor technology and maintenance. Fuel-cell devices are the most reliable for regular personal use.

How often should a breathalyser be calibrated?
Digital devices will typically need calibration every 6–12 months or after a specific number of tests. Some breathalyser models allow simple sensor replacement instead.

Can breathalyser mouthpieces be reused?
Where multiple people are being tested, mouthpieces should be treated as single-use for hygiene and accuracy.

Why buy a breathalyser from UK Drug Testing?

  • A carefully chosen range covering home, business and professional testing needs
  • Experienced support team to help you choose the right model
  • Calibration and aftercare services available
  • Fast discreet UK delivery and reliable UK based customer service

Need more help?

Our customer support team is happy to assist with technical advice or recommendations. Please use our live chat, call during working hours, or drop us an email—we’re here to help. UK Drug Testing is one of the leading online drug and alcohol testing companies in the UK.

if you are unsure which breathalyser will be the best for your requirements you may find the answer below or in our breathalyser FAQ section. 

Frequently Asked Questions – Breathalysers

What are the legal blood alcohol limits in the UK?

  • England, Wales & Northern Ireland: 80 mg of alcohol per 100 ml of blood, equivalent to 0.08 BAC or 0.8 ‰.
  • Scotland: Lower limit of 50 mg per 100 ml of blood (0.05 BAC, 0.5 ‰)


What is a breathalyser, and how does it work?

A breathalyser provides a quick, non-invasive method to estimate blood alcohol concentration (BAC) using a breath sample. It’s ideal for ensuring safety in workplaces, schools, or personal use

Which breathalyser should I choose—disposable or digital?

  • Disposable breathalysers: Quick, low-cost, and suitable for simple employment alcohol screenings.
  • Digital breathalyser models: More accurate and often used in professional or evidential contexts. Higher price generally means higher precision

Can I use a digital breathalyser for workplace or evidential purposes?

Yes—UK Drug Testing offers Home Office-approved digital models with printer output, suitable for workplace compliance and evidential use. See Draeger breathalysers.

How do I use a disposable breathalyser?

Using a disposable breathalyser is simple. Most kits involve blowing into a tube for a set amount of time, then checking the colour change against a guide included in the kit. Full instructions are provided with every product.

How can I choose the right breathalyser for my needs?

Consider what you will be using the breathalyser for:

  • Casual or personal use vs. professional/workplace screening.
  • Digital, calibrated, Home Office–approved models are best for compliance.
  • Reach out via chat, phone (01263 731 168, Mon–Fri 8:30–16:30), or email for personalised help.

Can I reuse a disposable breathalyser?

No – these are single-use kits and should be discarded after use. For multiple uses, consider one of our digital breathalysers.

How do I use a disposable breathalyser?

Simply follow the instructions provided with the kit. Typically, you break the security seals, blow steadily into the tube for a set duration, and wait for the colour change to indicate your result.

How accurate are disposable breathalysers?

Our disposable breathalyser kits are calibrated to detect key alcohol thresholds and are manufactured to meet EU and UK standards. While they are not as precise as digital or police-grade breathalysers, they are accurate enough for general screening and personal safety checks.

What is a disposable breathalyser kit?

A disposable breathalyser kit is a single-use device designed to quickly and easily test for the presence of alcohol in your breath. It provides an indication of whether your blood alcohol level is above or below the legal limit for driving.

How should I store my breathalyser and sensor?

To ensure accuracy and longevity:

  • Store your breathalyser in a cool, dry place.
  • Avoid exposing it to extreme temperatures, moisture, or direct sunlight.
  • Keep the sensor clean and free from dust and debris.

Where can I buy the AL7000 Replacement Sensor?

You can purchase the sensor from authorised online retailers, including UK Drug Testing, or from other reputable sellers of alcohol testing equipment.

What should I do if any alcohol is detected?

Even a low alcohol reading on a breathalyser suggests impairment. We strongly advise that individuals do not drive or operate machinery if alcohol is detected—regardless of the level.

Can breathalysers detect drugs?

No—breathalysers exclusively detect alcohol. Drug detection in addition to alcohol requires saliva (oral fluid) drug and alcohol test kits. Saliva drug tests which detect drugs and alcohol are commonly used for detecting substances like Cannabis and Cocaine.