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Dräger Alcotest® 4000 Breathalyzer

Dräger Alcotest® 4000

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Dräger Alcotest® 4000

​The Dräger Alcotest® 4000 breathalyzer 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 the same precise measurement technology used by law enforcement to conduct over 30 million breath alcohol tests a year.

So that uncertainty doesn’t come along for the ride

​Have you already had one glass of wine too many or is your blood alcohol content still in the green?

Whether there is still residual alcohol in the body is something that people often find out too late. With the Dräger Alcotest® 4000, you can test yourself at any time if you are ready to drive. This way, you can be more relaxed when faced with alcohol checkpoints by police or employer. No residual alcohol, no stress.

Fast and reliable alcohol tester

​Whether after a business lunch, or at a party or the morning after, thanks to the DrägerSensor, you always obtain a precise result when measuring the residual alcohol value. The measurement function is simply activated with the back-lit function button. Optional audible feedback provides additional orientation. The device 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 mouthpiece

​The mouthpiece is designed to fit intuitively and is 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 for standard impairment check operations.

Always ready for use

​On a cool winter night or a hot summer day, the device is ready for use within seconds. The temperature range for measurements ranges from 23°F to 122°F.

Handy and discreet

​Thanks to its compact design, the Alcotest® 4000 can fit into a pocket. Therefore you can take a measurement discreetly at any time, no matter where you are.

Designed for years of use

​The Alcotest® 4000 is made in Germany and meets the highest quality standards. Regular calibration of the device ensures that the measurement technology will remain precise for a long time. The worldwide, regional Dräger service network ensures that you can keep using the device for many years.

Precision for over 65 years: the measurement technology used by the police

​Dräger has been one of the world market leader and professional supplier of breath alcohol measuring devices for the police and industry for over 65 years. The measurement technology in the Alcotest® 4000 is identical with that in devices used for highly precise breath alcohol tests.

Consistent advances in technology over six decades have made the Alcotest® 4000 incomparably fast and reliable today. As a private user or professional driver you can simply pre-empt unpleasant surprises if your breath alcohol content (BrAC) is checked.

Over 30 million breath alcohol tests are performed with Dräger instruments around the world each year.

360 Product View



Alcotest 4000 Product Information, en-us
Alcotest 4000 Product Information, en-us


Alcohol and Drug Detection Portfolio Overview Brochure, en
Alcohol and Drug Detection Portfolio Overview Brochure, en

Devices for police, justice, medical, workplace or personal use.


Dräger Review special Drugs and Alcohol Brochure, en
Dräger Review special Drugs and Alcohol Brochure, en

Special brochure all around the topic drugs and alcohol.


IFU Alcotest 4000 - 9300212 en-us-me
IFU SP Alcotest 4000/5000/6000/7000 - Safety-related information 9300215 en-us-me

Technical Data

Key Facts

Sensor technology
Dräger Electrochemical Sensor / Fuel cell
Bluetooth Module
System Integration
GPS Module
Data storage
400 Tests
Data readout via PC
Charging of rechargeable batteries in device
Print option
Language conversion by customer

Tests Modes

Active breath alcohol test
Non-Contact breath test
Passive breath alcohol test
Dräger Alcotest mouthpiece
Dräger Alcotest funnel
Displayed Results
Alcohol concentration value will be shown

Technical Data

Measuring range
up to 2.5 mg/L
Operating temperature
23°F - 122°F
Black / White
Connection port
Micro USB
Type of battery
Number of tests from full battery
Protection class
Calibration interval
12 months
Start up time
4 seconds
Analyse time after test sample
3 to 25 seconds
Recovery time to be ready for next test
20 to 120 seconds


CE Sign
EU Police approval (EN15964)
EU Private Use approval (EN16280)
NHTSA Evidential
✓ (AS3547:2019)
German Lloyd
✗ not approved
US Coast Guard
UK Home Office
✗ not approved
Criminal Code of Canada

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Get in touch with Dräger

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Draeger, Inc. – Safety

7256​ ​S.​ ​Sam​ ​Houston​ ​W​ ​Pkwy.,​ ​Suite​ ​100
Houston,​ ​TX​ ​77085