Breath Alcohol Tester Personal Portable Digital LCD Display Alcohol Detection Instrument with Five Mouthpieces Slim Pocket Size 124×80×35mm Black Household Alcohol Meter for Driving Safety
Personal Breath Alcohol Tester with Digital LCD Display and Five Mouthpieces for Portable Use

This compact breath alcohol tester offers a practical, portable solution for individuals needing to check their blood alcohol concentration (BAC) levels. With its slim, pen-like design measuring just 124 × 80 × 35 mm and weighing only 93 g, it easily fits into a pocket or small bag, making it convenient for home use, professional settings, or carrying before driving. The device uses a highly sensitive semiconductor sensor to provide quick, accurate measurements across three measurement units: percentage BAC (%), per mille BAC (‰), and milligrams per litre (mg/L). Its operation is straightforward, requiring only a steady breath into one of the five supplied disposable mouthpieces, with results clearly displayed on the digital LCD screen within seconds.
Features and Construction

This alcohol detection instrument combines multiple practical features in a compact housing. Its construction focuses on reliable operation within specified environmental conditions and user-friendly feedback mechanisms.
Material and Build
The tester is housed in a black plastic casing that houses the core semiconductor sensor and electronic components. This sensor is specifically calibrated for breath alcohol detection and provides measurements across a detection range of 0.00-0.19% BAC, 0.00-0.99 mg/l, and 0.00-199 mg/100 ml. The device carries RoHS and CE certifications, indicating compliance with relevant electrical safety and environmental standards. All electronic components are controlled by a smart MCU (Microcontroller Unit) that manages the measurement process, display output, and warning systems.
Size and Practical Fit
With dimensions of 124 × 80 × 35 mm and a weight of 93 g, this tester maintains a genuinely portable form factor. Its slim, pen-type profile allows it to slip into a shirt or jacket breast pocket without creating noticeable bulk. The lightweight construction means it can be carried comfortably throughout the day without adding significant weight to your belongings. This portability makes it suitable for various scenarios, from pre-driving checks to workplace monitoring or home use, without requiring dedicated storage space.
Uses and Placement

The alcohol tester serves multiple practical applications across different environments. Its portable nature and straightforward operation make it adaptable to both personal and professional contexts where alcohol concentration monitoring is necessary or advisable.
Event or Professional Use
For events, workplaces, or professional settings where alcohol consumption may be followed by operating machinery or driving, this tester provides an objective measurement tool. The inclusion of five mouthpieces supports hygienic use by multiple individuals in quick succession, such as at event exits, workplace checkpoints, or shared community spaces. The audio-visual warning system activates automatically when readings exceed 0.05% BAC, 0.50‰ BAC, 0.25 mg/L, or 50 mg/100 ml, providing clear, immediate feedback without interpretation. This makes it suitable for settings where consistent, measurable thresholds are required rather than subjective assessment.
Everyday Home Use
For personal or household use, the tester offers a convenient way to check alcohol levels before making decisions about driving or other activities. Its simple three-step process—install mouthpiece, hold button, breathe—requires no technical expertise. The digital LCD display shows results in your preferred unit of measurement (switchable between %, ‰, and mg/L using the power button), with the device remembering your previous format selection. The sleep function, which activates after five minutes of non-use, helps conserve battery life if you forget to manually turn off the device, making it practical for intermittent home use without constant battery replacement.
Benefits and Buying Value
This alcohol tester delivers value through its combination of portability, multi-user capability, and clear warning systems. It addresses practical needs without requiring specialised training or extensive maintenance.
Reuse and Low Maintenance
The device is designed for repeated use with minimal ongoing maintenance. Powered by three standard AAA batteries (not included), it can perform approximately 200 tests on a single set of batteries under normal operating conditions. The automatic sleep function further extends battery life by powering down the device after five minutes of inactivity. No calibration fluids or regular professional servicing are mentioned as requirements, suggesting a straightforward ownership experience. The disposable mouthpieces provide hygienic separation between users without needing to clean or sterilise the device itself between tests.
Why Choose This Product
This breath alcohol tester stands out for its balance of portability, clear warning systems, and multi-user readiness. The five included mouthpieces make it immediately usable in shared scenarios without additional purchases. The audio-visual alerts provide unambiguous feedback when readings exceed safety thresholds, removing interpretation uncertainty. Its operation within temperatures from -10°C to 50°C and relative humidity up to 95% (non-condensing) ensures reliable performance across various environmental conditions you might encounter. For anyone needing a practical, portable alcohol detection tool for personal accountability, workplace compliance, or household safety, this compact tester delivers measurable functionality in a conveniently small package.