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Alcohol Tester
Keywords: digital alcohol tester, AMT139 alcohol tester, personal breathalyzer, portable alcohol tester, semiconductor alcohol tester
Pocket digital alcohol tester with a semiconductor sensor, 3-colour backlight and built-in clock, alarm and timer.
The AMT139 is a pocket-size digital alcohol tester for personal use. A semiconductor alcohol sensor warms up within about 10 seconds and responds within 5 seconds, so a reading is available almost immediately after switching the unit on, and the result is shown digitally in %BAC, ‰BAC or mg/L.
Beyond testing, the same unit works as a travel clock: it keeps real time, has an alarm clock and a countdown timer, and the three-colour backlight makes it readable at night. Auto power-off and a low-voltage indicator keep the two AAA cells from being drained by accident.
1. Semiconductor Alcohol Sensor — a fast-responding sensor with 10-second warm-up and 5-second response.
2. Triple Unit Display — results in %BAC, ‰BAC or mg/L, selected to suit the local convention.
3. 3-Colour Backlight — the display changes colour with the reading so the result can be judged at a glance.
4. Clock, Alarm and Timer — a real-time clock, alarm clock and countdown timer make the unit useful between tests.
5. Quick Response and Resume — fast warm-up and quick resume so tests can be repeated in succession.
6. Auto Power-Off — switches itself off when idle to preserve battery life.
7. Low Voltage Indicator — warns before the batteries are too weak for an accurate reading.
8. Compact Pocket Body — 100 × 37 × 18 mm, small enough to be carried every day.
9. 2 × AAA Power — runs on two standard AAA alkaline batteries.
| Model | AMT139 |
| Product Name | Digital Alcohol Tester |
| Sensor | Semiconductor alcohol sensor |
| Detection Range | 0.000–0.199 %BAC; 0.000–1.990 ‰BAC; 0.000–0.995 mg/L |
| Warm-Up Time | Within 10 seconds |
| Response Time | Within 5 seconds |
| Operating Temperature | 5 ℃ – 40 ℃ |
| Display | Digital result with 3-colour backlight |
| Extra Functions | Real-time clock, alarm clock, countdown timer |
| Power | 3 V (2 × AAA alkaline battery, not included) |
| Unit Size | 100 × 37 × 18 mm |
1. Personal checks before driving after drinking.
2. Household use where a simple pocket tester is enough.
3. Screening guests at parties, weddings and private events.
4. A travel clock and alarm with alcohol testing built in.