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Dräger 4000 Breathalyzer

£295.00 Excl. VAT

Free standard delivery – view delivery options


Discreet and compact but with the same fuel cell sensor technology as professional devices used for evidential workplace and police testing; the AlcoTest 4000 is the ultimate personal breathalyser.

✔ EN Approved

✔ NHTSA Evidential Approval

Previously known as the AlcoTest 3820, over 60 years of advancing breathalyser technology has lead to this incomparably efficient and  Police-Grade accurate Dräger 4000 breathalyzer.

It offers responsible drivers a reliable way to test their breath alcohol and gives them the assurance of being legal to drive. This is ensured by precise measurement technology identical to that used by the police.

AlcoDigital 3820 Breathalyser made by Draeger

  • Quick and easy to use – ready in less than 5 seconds
  • Exactly the same sensor as the one used in UK police force breathalysers, an ultra-low energy 220sq mm fuel cell sensor
  • Same accuracy as UK police breathalysers
  • 1 year warranty
  • Made by renowned breathalyser manufacturer Dräger

Fast and easy sampling

The measurement function is simply activated with the back-lit function button. Optional audible feedback provides additional orientation. The Alcotest 4000 is ready to use in seconds and the breath test can be performed immediately. The same button is used to navigate through the menu.

Replaceable Mouthpieces

The mouthpiece is intuitive to fit and protected by a cap. A new mouthpiece should be used for each person being tested. Additional mouthpieces are available as accessories. The air channel passes the exhaled air over the device, and only a small sample of this air is drawn for analysis. This ensures that there is no residual alcohol in the device and that all measurements remain precise and reliable. The same method is also used by the Police.


Size:Approx. 50 x 133 x 29 mm/1.9″ x 5.2″ x 1.1″
Weight: Approx. 130 g/4.5 oz., incl. battery

Analytical principle: Electrochemical Dräger sensor for 1/4” technology, alcohol specific
Measurement precision:0 to 5.00‰; if the limits of the measuring range are exceeded, a message is displayed
READY Time: approx. 4 s on start up
Memory: Last 10 tests

Operating Temperatures: -5 to +50°C/23 to 122°F

Orders placed before 12pm will be dispatched same day via the selected shipment method. Orders placed after 12pm will be dispatched the next working day.

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Orders £100 to £500

Tracked 2-3 days, insured up to £250 – free
Tracked next day, fully insured – £5.50
Tracked next day before noon, fully insured – £25.00

All delivery prices quoted include VAT. For any queries please call 0208 454 7372.

To track the status of an existing order please click here.

Thinking of upgrading your digital breathalyser? Trade-in your old one and save when you upgrade.

Your old breathalyser could be worth up to £250 when you upgrade to a new one. We will accept most major makes and model of breathalyser (Draeger, AlcoDigital, Lion, Lifeloc, AlcoHawk, Sentech and AlcoSense) as trade-in for a new digital breathalyser from our range – why not see how much yours could be worth now? Click here to trade in your breathalzyer.