This is a used item. There are minor scratches and signs of aging from use, but it functions without any problems. It is more suitable for those who prioritize practicality over those who are overly concerned about the condition. HB-A02-W (07-8919 White) Alcohol Detector / Battery-powered, Breath-activated, Non-contact Measurement Accuracy: +0.15 / -0.05 mg/L (when measuring an alcohol concentration of 0.250 mg/L) Antibacterial body Comes with a strap for easy carrying Power Supply: DC3V (2 x AAA alkaline batteries ※sold separately) Highly sensitive semiconductor gas sensor ※Sensor life: 1 year after purchase or 1000 detections, whichever comes first Auto power off function Measurement Range: 0.000〜0.950 mg/L (Displays 0.000 for values less than 0.025 mg/L) Minimum Display: 0.025 mg/L Simple measurement by just blowing into it Good visibility with a backlight