With advanced semiconductor sensor, utilizes the same technology trusted by hospitals, clinics, and law enforcement. These professional organizations trust our breath alcohol testers because they know they are getting accurate and reliable results. One-button operation makes it easy to turn the device on and test within seconds. Wait 10 seconds for warm-up, then blow into the tester for 5-6 seconds. The result will be ready in 3 seconds. Please wait at least 20 minutes after drinking before testing. Lightweight breath alcohol tester fits easily in a pocket or purse, making it ideal for weddings, parties, or other social events. LCD display ensures readability even in low-light conditions and offers precision for responsible decision-making. It provides an ble alarm when the limit is exceeded along with visual indicators. Features: 1. Digital display of alcohol concentration with ble alerts 2. Adjustable alarm with red light backlight 3. Auto shut-off for power saving 4. Replaceable mouthpiece design (5 mouthpieces included) 5. Warm-up time: 10 seconds Response time: within 5 seconds 6. Test range: 0.00%-0.19% BAC 7. Requires 2 "AAA" alkaline batteries (not included) For best results, wait 20 minutes after drinking before testing. Allow at least 3 minutes between tests. Test results are for reference only as individual responses to alcohol may vary. This device is not intended for legal or medical use. Material: Plastic Color: Black Package Contents: 1 x Alcohol Tester 5 x Mouthpieces Only the listed contents are included; other products shown are not part of this sale. Note: Lighting and screen differences may cause slight color variations in product images. Measurement error is +/- 1-3cm.