Digital Breath Alcohol Analyzer with LCD Display for Accurate Testing

New, portable, and stylish design Advanced flat-surface alcohol sensor Rapid detection results, quick response, and fast recovery High quality, high accuracy, and high sensitivity After drinking, perform a quick test to help ensure responsible driving decisions SMD assembly for stable performance Smart MCU control Direct testing process with LCD indication Digital LCD display with light blue backlight Audio warning when readings exceed preset limit Automatic sensor fault self-check Battery-saving design with low-voltage indication A quick check helps you drive with confidence and safety Tips for Alcohol Testing: Wait at least 20 minutes after consuming alcohol before testing. Otherwise, the device may not respond accurately. If another person tests immediately after you, they should wait at least 5 minutes. If the reading exceeds 0.05% BAC, the alarm will sound — refrain from driving. If the reading is below 0.05% BAC, it indicates a level within typical legal limits for driving in many regions. How to Use: 1. Open the battery compartment and insert three AAA batteries according to polarity markings. 2. Press the “Start” button. A short beep will sound, the backlight will activate, and the screen will display a countdown from 100 to 000. The lower portion of the screen shows “WAIT”, indicating the preheat cycle is running. Do not blow during this time, as it may affect accuracy. When preheating completes, “WAIT” disappears, the device beeps, and “BLOW” appears on-screen along with a flashing “C”. You may then begin the breath test. Note: Countdown speed varies based on ambient alcohol concentration — lower concentrations result in faster countdowns. 3. Take a deep breath and blow steadily and continuously into the mouthpiece when the “C” flashes on-screen, until the device beeps and stops prompting. 4. After blowing, the screen displays “TEST” while analyzing the sample. Do not blow again during analysis, as it may affect results. Once complete, the measured alcohol concentration appears on-screen and remains visible for several seconds before the device powers off automatically. Specifications: Sensor: Advanced flat-surface alcohol sensor Operating Temperature Range: –10°C to 50°C Detection Range:  0.00–0.20% BAC  0.00–2.00 g/L  0.00–2.00 mg/L  0.00–200 mg/100 mL Alarm Thresholds:  0.05% BAC  0.50 g/L  0.50 mg/L  50 mg/100 mL Power Source: 3 × AAA batteries (not included) Accuracy: ±10% of full scale Operating Voltage: DC 4.5 V (3 × AAA) Operating Current: [Not specified in text]