Digital Alcohol Tester Mini Keychain Portable Breathalyzer

Features: 1. Advanced NM Hot-wire alcohol sensor 2. Quick response 3. SMD assembling, stable performance 4. Smart MCU control 5. Direct testing process LCD indication 6. Digital LCD display with light blue backup 7. Portable and fashion design 8. Audio warning beyond pre-set limit 9. Sensor Fault Self checking 10.Battery saved design, low voltage indication

Product Size: 6.2 * 3.8 * 1.5cm Product packaging: plastic box product properties: 1. Product built-in button battery; 2. English Introduction: 1.Wait at least 20 minutes after your last alcohol drink for accurate result. 2.To get a more accurate and reliable result,please test at least 3 times. Please test once every three minutes. 3.Do not use this product to determine whether you can drive or not. This is only a reference.