Thank you for viewing. Brand new, unused item. ✅【Made in Japan Sensor, Ultra-High Precision】 This alcohol checker uses a high-performance sensor to prevent strong interference. When turned on, it automatically eliminates excess air, ensuring accurate detection in a short time. You can easily measure by simply blowing into it. Measurement range: 0.00-0.99mg/L. ✅【Blow-type, Non-Contact & Japanese Voice Guidance】 Since it doesn't use a mouthpiece, it's very hygienic. You can measure by blowing from a distance of 1 cm, making it a hygienic alcohol tester that can be used by more than one person. When turned on, there is Japanese voice guidance, so you can use it without reading the instructions. ✅【Easy-to-Understand Detection Results】 The alcohol detector has a light, making it easy to see even in dark places. The contrast is clear, the visibility is high, and it's easy to understand. The warning sound depends on the measurement results: ① Alcohol concentration value is 0.00-0.15mg/L, green light turns on; ② Alcohol concentration value 0.15mg/L-0.25mg/L, yellow light turns on; ③ Alcohol concentration value is 0.25mg/L or more, red light turns on. ✅【USB Rechargeable Alcohol Detector】 This portable alcohol checker uses USB charging. Unlike battery replacement, it can be used about 500 times after being fully charged in one hour. It comes with a USB cable, so you can charge it by directly connecting it to a USB adapter, mobile phone battery, car charger, PC, etc. Note: It may not work properly due to insufficient power, so please charge it first when using it for the first time. ✅【Wide Range of Applications & 2-Year Warranty & B2B Support】 Alcohol checkers are required for use by transportation companies and passenger transport companies. This alcohol detector is, of course, for business use, but it is also a necessity for every household. Although it is new and unused, please refrain from purchasing if you are concerned as it is stored at a private residence. Please refrain from price negotiations.