AlcoWarn
Alcohol immobilizer
Don“t drink and drive
Alcohol immobilizer
AlcoWarn’s alcohol immobilizer or “breath alcohol ignition interlock device” (BAIID) prevents the vehicle from starting under the influence of alcohol.
PreLock 90, the alcohol immobilizer from AlcoWarn
The alcohol immobilizer consists of two parts: a hand-held device with a measuring indicator and a control unit, which is installed under the dashboard cover and within reach of the driver’s seat.

PreLock 90 from AlcoWarn
The driver first operates the ignition.
Then, for example, a signal tone or an LED light on the hand-held device prompts the user to provide a breath sample.
The handheld device measures the alcohol concentration in the breath and after about five seconds the result is shown on the display.
AlcoWarn’s alcohol immobilizer has several impressive features.
First, it is based on reliable and accurate technology that can precisely measure alcohol content in the breath. This ensures that drivers cannot drive under the influence of alcohol.
Secondly, the alcohol immobilizer is user-friendly. It is easy to operate and has a clearly visible display that gives clear instructions. This allows drivers to quickly see whether they are fit to drive or not.
In addition, AlcoWarn offers excellent customer service and support. In case of any questions or problems, the team is always available to provide support.
In conclusion, AlcoWarn’s immobilizer stands out for its precision, ease of use and excellent customer service. It is a reliable solution to prevent drunk driving, making the roads safer. Moreover, the immobilizer is very sturdy and durable. It has been made from high-quality materials to withstand the rigors of daily use. This ensures that it will work reliably even in adverse weather conditions or other challenges.
Another advantage of the AlcoWarn breath alcohol immobilizer is its flexibility. It can be installed in different types of vehicles and is suitable for both private and commercial use. It also offers various options for personalization, such as individual settings for breath alcohol content or special warnings.
Last but not least, the use of such an immobilizer helps to raise awareness of the issue of “drinking and driving” and thus reduce road traffic accident figures in the long term.
Overall, the AlcoWarn alcohol immobilizer convinces with its high quality as well as its usefulness in improving road safety on our roads. Its reliable function and flexibility make it a sensible investment for every vehicle owner who wants to take responsibility in road traffic.
Installing such an immobilizer can help prevent serious accidents caused by drunk driving and thus save lives.
With this innovative technology, AlcoWarn sets an example against drunk driving and makes an important contribution to improving traffic safety on our roads.
How an alcohol immobilizer works
The process of using it is quite simple:
- The driver turns the ignition key to start.
- Mandatory administration of a breathalyzer test is indicated.
- Through a mouthpiece (replaceable for hygienic reasons) on the hand-held device, the driver gives a breath sample.
- After approx. 5 seconds, the result of the breath alcohol content is shown on the display of the hand-held device.
- Only if the previously entered limit values are not exceeded, the ignition is enabled.
- Nothing stands in the way of an alcohol-free and therefore safe journey in road traffic.