Features: Experience unparalleled accuracy with the Tester, featuring a high precisions per mille meter and a digital LCD display for clear and reliable readings. Designed with advanced sensor technology and automatic calibration, this professional Meter ensures consistent performances and reduces error over time. Ideal for drivers and vehicle owners concerned about road safety, as well as bar and restaurant staff assisting patrons in monitoring their intake. Perfect for use at home, during parties, or on road trips to ensure safe driving conditions; also suitable for social gatherings where responsible drinking is encouraged. This Tester is a must have tool for personal safety checks, workplace compliance, and promoting responsible behavior. Specifications: Material: ABS Battery: 3pcs 3A Battery Requires(NOT Include) Size: About. 48x108mm/1.89x4.25in Package Includes: 1pc Digital Breathalyzer note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.