1、Precise Detection: This alcohol detector has a measuring accuracy of 0.03mg/L. The display accuracy reached 0.01mg/L, accurate and reliable; The detection value ranges from 0.00 to 0.95 mg/L. 2、Infrared Sensor Technology: This is a tester with infrared technology, to detect alcohol concentration, automatic test, free hands, no hand held test, contactless use safer. 3、Bluetooth APP Remote Monitoring: This alcohol detector can be connected to the APP through Bluetooth, real time monitoring, anytime, anywhere; Test data is uploaded to the cloud management in real time. 4、Intelligent Voice Broadcasting: Our intelligent alcohol detector supports real time voice broadcasting, and can know the alcohol content at any time. 5、Portable and Video Record Function: Light weight, simple operation, easy to carry. It supports APP video function to prevent others from impersonating. Item Type: Alcohol Tester Product Size: Approx.14 x 8 x 3cm / 5.5 x 3.1 x 1.2in Data Storage 50 Groups Measurement Accuracy 0.03mg/L Display Accuracy 0.01mg/L Working Environment 5~35 Degree Celsius Storage Environment 0 to 40 Degree Celsius Test Frequency 2500 Times The Detection Value Ranges from 0.00 to 0.95mg /L Power Supply :Type C Dc5v/1 x 18650 Lithium Battery (Shipped Without Battery) Preheating Time :1 Second, Reaction Time :0.1 Second 1 x Alcohol Detector 1 x Cable 1 x Instruction Manual