Certified by the Japan Association of Breath Alcohol Check (J-BAC) (Certification Number: JB10001-23) [Product Information] Brand: TANITA Model Number: HC-310 Manufacturer's Warranty: 1000 measurements or 1 year from purchase Main Accessories: 2 x AAA (LR03) batteries for testing, Instruction manual (with warranty) x 1 [Product Specifications] Size: Width 37 x Height 120 x Depth 20mm (when stored) Package: 14.9 x 10.5 x 3.3cm Weight: Approximately 74g (including batteries) Package: 128g Power Supply: DC3V (2 x AAA (LR03) batteries) Sensor Life: 1000 measurements (when the "sensor" mark lights up) or after 1 year from purchase Minimum Breath Alcohol Concentration Display: 0.05 mg/L New, unused, and unopened.