Features: High-precision chip, intelligent sensor, measuring accuracy up to 0.01 mg/L. Ensure accurate readings in a short time. No contact, avoid blowpipe breeding of bacteria. Three indicator colors for easy inspection. Portable and compact, it is perfect for weddings, parties, or other social events to ensure safe driving after drinking. Dust proof design with sliding closure of air intake for longer use. Specifications: Item: Portable Alcohol Tester Main Color: Black Material: ABS Measurement Range: 0-0.19% BAC 0-0.95mg/L Measurement Accuracy: 0.01mg/L Measurement Method: Preheating and Blowing Charging Interface: Type-C Charging Voltage: 5V/1A Working Current: 80MA 10% Size: 12.5*3.5*2cm Packing Size: 12.7*4*2.5cm Packing Weight: 69g Package List: 1* Portable Alcohol Tester 1* Charging Cable