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gift portable high accuracy CE ROHS car Alcohol breathalyzer
Main Feature:
Advanced NM Hot-wire alcohol sensor
Quick response
SMD assembling, stable performance
Smart MCU control
Direct testing process LCD indication
Digital LCD display with light blue backup
Portable and fashion design
Audio warning beyond pre-set limit
Sensor Fault Self checking
Battery saved design, low voltage indication
Technical Data
Sensor type: NM Hot-wire alcohol sensor
Detection Range: 0.000~0.199%BAC; 0.00~1.99‰BAC; 0.00~0.99mg/L
Alarming Level: 05%BAC, 0.25mg/L; 0.5‰BAC
Accuracy: ±10% F.S
Response Time: <5s Warm-up Time: <20s
Resume Time: ≤20s
Working Voltage: DC4.5V(3×AAA)Batteries; Working Current: ≤120mA
Working Environment: Temperature -10°C~50°C Relative Humidity ≤95% No Dews
Display: 3 digitals LCD display with blue backlight
Dimension:103×65×27mm (L×W×H), ≤64 g Battery excluded
1. Structure and Function Guide
1.1 Structure Guide picture:

1 | Mouthpiece |
2 | Buzzer hole |
3 | Switch Button |
4 | Input for external power |
5 | LCD Screen |
6 | Vent hole |
1.2. Function Guide





2. Operation Instruction
2.1. Slide down the battery compartment on the back side, insert 3pcs AAA 1.5V batteries inside according to battery polarity indication and close it.
2.2. Press the power button for 1S, after 1 beep sound, “ warm up “ will be displayed on LCD , after 20 second with 1 “beep“ sound, “ blow” will be displayed on LCD and start to countdown and inform for testing.
2.3. Blow directly to the mouthpiece, after 4 seconds with 1 ”beep” sound to inform to stop blowing and the test result will be displayed on LCD.
2.4. Unit switch: On test result mode, press “power“ button to change the unit (% BAC-‰BAC -mg/l) the final unit will be displayed for next test.
2.5. Auto Power off: tester will auto power off after test result show on LCD for 20 Seconds.
2.6. The LCD flickering indicates low power of batteries, please replace two “AAA” alkaline batteries
2.7. Sensor fault self checking : when turn on , tester will check sensor’s mode is normal or abnormal, if some abnormal thing is found which can auto repair ( about 10 seconds), if can not be repaired, LCD will display “ ER”.
2.8. If a new testing needed, press the switch button again and repeat the above step 4.2~
3. Notification
3.1. Avoid any fall or strong shock.
3.2. If noise gas with high concentration existed, may the tester won’t work normally.
3.3. If testing is done under low voltage, certain error will be existed between the real value.
3.4. To ensure the testing result, please wait 10 min to take the testing after your drinking.
3.5. Please operate it strictly according to this instruction. If long time not use, when you first begin a new testing, the first two times testing result may be unreliable, just begin testing from the third time, otherwise the result will also not be accurate.
3.6. Do not keep the tester in the environment of Corrosive gas (Chlorine etc) for use or deposit, also in other bad surroundings.
3.7. Under normal detections, sensor life could be more than two years.
3.8. After Long time use, there may be dirt on the tester, please use clean cloth to wipe off. Do not use any hard object or the solvent with any Corrosive ingredient.
Remarks: Common Fault and Solving solutions
Fault | Possible reason | Solution |
NO display on LCD | Incorrect battery installation | Insert battery correctly according to polarity |
Low battery seriously | New battery replacement | |
Circuit fault | Contact distributor | |
No response to detection gas | not complete Warm-up | Waiting complete Warm-up |
Circuit fault | Contact distributor | |
FFF display then power off | Sensor fault | Contact distributor |
Low voltage display then power off | Low battery seriously | New battery replacement |
To keep the continuous improvement of the products, we reserve the right to improve design without prior notice.
The table of comparison for Alcohol in Blood between the mg/L and BAC
The level of Alcohol display in BAC 0.00% | The level of Alcohol display in mg/L |
0.01 | 0.05 |
0.02 | 0.10 |
0.04 | 0.20 |
0.05 | 0.25 |
0.06 | 0.30 |
0.08 | 0.40 |
0.11 | 0.55 |
0.12 | 0.60 |
0.14 | 0.70 |
0.16 | 0.80 |
0.18 | 0.90 |
0.20 | 1.00 |



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