1. Introduction
The ACE Q Breathalyzer is a highly accurate alcohol testing device, recognized for its police-grade precision. It is suitable for both personal alcohol self-monitoring and for use in businesses and social institutions. This manual provides comprehensive instructions to ensure safe and effective use of your device.
Key features include an impressive 98.7% accuracy rate, as validated by a comparative study at TU Vienna in January 2026, and the ability to store up to 10,000 breath sample values for graphical representation, making it ideal for authorities and companies.
2. What's in the Box
Please check the package contents to ensure all items are present:
- ACE Q Breathalyzer
- Keychain ring
- Instruction Manual
- AAA Batteries (2)
- Mouthpieces (6)
Image: ACE Q Breathalyzer and included accessories: device, USB-C charging cable, user manual, carrying pouch, and multiple mouthpieces.
3. Setup
- Insert Batteries: Open the battery compartment on the back of the device and insert the two AAA batteries, ensuring correct polarity.
- Attach Mouthpiece: Insert a fresh mouthpiece into the designated slot on the top left side of the device. Ensure it is securely fitted.
- Power On: Press and hold the power button (central button) to turn on the device. The display will light up.
Image: Hand holding the ACE Q Breathalyzer, showing the mouthpiece insertion.
Image: Hand inserting AAA batteries into the back of the ACE Q Breathalyzer.
Setup and Operation Video Guide
Video: This video demonstrates the unboxing, battery installation, mouthpiece attachment, and basic operation of a portable breathalyzer, including warm-up, blowing, and result display.
4. Operating Instructions
- Pre-Test Waiting Period: For accurate results, wait at least 20 minutes after consuming alcoholic beverages before performing a test. This allows residual alcohol in the mouth and esophagus to dissipate, preventing inaccurate high readings.
- Warm-up: After powering on, the device will enter a warm-up phase, typically lasting about 15 seconds. Wait for the countdown to complete.
- Perform Test: Once the device indicates it is ready (e.g., displays 'BLOW' or a similar prompt), take a deep breath and blow steadily and continuously into the mouthpiece for 3-5 seconds. Ensure a consistent airflow.
- View Results: The device will process the sample and display your Blood Alcohol Content (BAC) on the screen.
- Change Measurement Units: The ACE Q supports multiple measurement units. Press the central button briefly to cycle through available units such as %BAC, ‰BAC, and mg/L.
- Automatic Shut-off: The device is designed to automatically power off after approximately 20 seconds of inactivity to conserve battery life.
- Data Storage: The device automatically stores the last 10,000 test results, which can be accessed and viewed graphically for tracking purposes.
Image: Person using the ACE Q Breathalyzer in a car, blowing into the mouthpiece.
Image: ACE Q Breathalyzer displaying results in a car interior.
5. Maintenance
- Mouthpiece Replacement: Always use a clean mouthpiece for each test. Replace mouthpieces regularly, especially if they show signs of wear or damage.
- Cleaning: Wipe the exterior of the device with a soft, damp cloth. Do not use abrasive cleaners or immerse the device in water. Ensure no liquid enters the mouthpiece slot or other openings.
- Calibration: To maintain the high accuracy of the ACE Q Breathalyzer, regular calibration is recommended. It is advisable to have the device calibrated annually by the manufacturer or an authorized service center.
- Storage: Store the device in a cool, dry place, away from direct sunlight and extreme temperatures. Keep it out of reach of children.
Image: ACE Q Breathalyzer connected to a calibration device in a lab setting.
6. Troubleshooting
- Device Not Powering On: Check if the AAA batteries are correctly inserted and have sufficient charge. Replace batteries if necessary.
- Inaccurate Readings: Ensure you have waited at least 20 minutes after consuming alcohol. Make sure you are blowing steadily and continuously into the mouthpiece. If inaccuracies persist, the device may require calibration.
- Error Messages: If an error message appears on the screen, refer to the specific error code in the full user manual (if available) or try restarting the device. Ensure the mouthpiece is correctly attached.
- Device Shuts Off Unexpectedly: This could indicate low battery power. Replace the batteries. If the issue continues, contact customer support.
7. Specifications
| Model | ACE Q |
| Brand | ACE |
| Accuracy | 98.7% (TU Vienna, January 2026) |
| Dimensions | 11.5 x 5.3 x 2.5 cm |
| Weight | 220 grams |
| Power Source | 2 x AAA Alkaline Batteries (included) |
| Data Storage | Up to 10,000 test values |
| Included Components | Breathalyzer, keychain ring, instructions, batteries, mouthpieces |
8. Warranty and Support
For warranty information, technical support, or to inquire about calibration services, please contact ACE customer service directly. Refer to the contact details provided in the packaging or on the official ACE website.
