Alcohol tester breathing type household alcohol detection instrument with audio alarm and digital LCD screen, black portable pen-type slim design measuring 124 × 80 × 35 mm and weighing 93g with 5 included mouthpieces
Portable Alcohol Tester with Digital Display and Audio Warnings for Home and Personal Use

This portable alcohol detection instrument provides a practical method for checking blood alcohol concentration through breath analysis. Designed as a pen-type slim device measuring 124 × 80 × 35 mm and weighing just 93g, it fits conveniently into a breast pocket for carrying to various locations. The black housing contains a highly sensitive semiconductor sensor with five blowing ports that quickly measures alcohol concentration with results displayed on a digital LCD screen in multiple units. With included audio and video warning sounds that activate when preset thresholds are exceeded, this tester offers clear feedback for making informed decisions about activities like driving. Its portable nature makes it suitable for household use, mid-term checks, or personal monitoring scenarios where quick alcohol testing is needed.
Features and Construction

The alcohol tester combines precise measurement technology with user-friendly operation in a compact design. Built around a semiconductor sensor system, it provides accurate readings across multiple measurement scales with intelligent features that enhance usability.
Material and Build
The device utilises a semiconductor sensor specifically calibrated for alcohol detection, housed within a black plastic casing that forms the pen-type slim profile. This construction supports the device's lightweight portability at 93g while protecting the internal electronics. The sensor's five blowing ports are designed to capture breath samples effectively, and the inclusion of five separate mouthpieces allows for hygienic testing between users or multiple testing sessions without cross-contamination concerns.
Size and Practical Fit
With dimensions of 124 × 80 × 35 mm and weighing only 93g, this alcohol tester maintains a genuinely portable form factor. The pen-type slim design specifically allows it to fit into standard breast pockets, making it convenient to carry for personal use outside the home. This compact size, combined with the device's operating temperature range of -10°C to 50°C and tolerance for relative humidity up to 95% (non-condensing), ensures functionality in various environmental conditions where testing might be required.
Uses and Placement

This alcohol tester serves multiple applications from household monitoring to personal responsibility checks. Its portable design and clear warning system make it suitable for various scenarios where alcohol consumption needs verification.
Event or Professional Use
While primarily designed as a household instrument, the tester's features support professional or event applications where quick alcohol checks are needed. The five included mouthpieces allow multiple individuals to be tested sequentially, while the audio and video warning sounds provide clear, audible alerts when alcohol levels exceed the preset thresholds of 0.05% BAC, 0.50‰ BAC, 0.25 mg/L, or 50 mg/100ml. These thresholds align with common legal limits for activities like driving, making the device useful for preliminary checks before operating vehicles or machinery.
Everyday Home Use
For domestic settings, this portable tester offers a convenient way to monitor alcohol consumption without specialised equipment. The digital LCD screen provides easy-to-read results even in low-light conditions, while the simple three-step operation—installing the mouthpiece, pressing the button, and breathing for 2-3 seconds—makes it accessible for regular use. The device's ability to switch between percentage, per mille, and milligrams per litre display formats using the power button, while remembering the previous setting, caters to users familiar with different measurement systems.
Benefits and Buying Value
This alcohol tester delivers practical advantages through its combination of accurate measurement, clear warnings, and portable convenience. These benefits translate into tangible value for users needing reliable alcohol testing without complex procedures.
Reuse and Low Maintenance
The inclusion of five mouthpieces supports multiple testing sessions or users without requiring immediate replacements. The device's sleep function, which activates after 5 minutes of non-operation, conserves battery power when the device is accidentally left on, extending usable time between charges. Powered by a self-prepared DC 4.5V source (batteries not included), the manufacturer indicates approximately 200 tests can be conducted per charge, reducing frequent battery changes. The intelligent MCU remembers previous display format settings, streamlining repeated use without needing to reconfigure measurement units each time.
Why Choose This Product
This alcohol tester stands out through its combination of precise measurement capability, clear warning systems, and genuine portability. The highly sensitive semiconductor sensor provides accurate readings across the specified ranges of 0.00-0.19% BAC, 0.00-0.99 mg/L, and 0.00-199 mg/100 ml, while the audio and video warnings offer unambiguous feedback when thresholds are exceeded. The pen-type slim design at 93g represents a truly portable option compared to bulkier testing equipment. With RoHS and CE certifications, the device meets recognised safety and environmental standards, providing assurance of its construction quality and manufacturing compliance.