Note: This product does not contain batteries; you need to provide three AAA batteries. Specification: Manufacture Country: China Alarm prompt: sound and light Shell material: ABS Product name: Alcohol tester Current: 120mA Battery configuration: 3 x AAA 1.5V batteries (not included) Voltage: 4.5V Operating temperature range: -5C to 45C Storage temperature range: -20C to 50C Test method: Semiconductor gas sensor Alcohol concentration range: 0200mg/100mL Measuring object: Alcohol concentration in exhaled breath Product dimensions: approximately 108.00 x 66.00 x 23.10mm (4.25 x 2.6 x 0.91 inches) Features: 1. Advanced Sensor Technology: Equipped with a new generation high-precision intelligent sensor, this alcohol breathalyzer provides more accurate detection results. 2. Enhanced Purification Process: Utilizes a dual filtering algorithm with a built-in evolution chamber to effectively remove impurities, leaving only alcohol. 3. Rapid Response Time: This portable breath alcohol tester delivers quick results, enabling precise detection even for traces of overnight consumption. 4. Clear Digital Display: Features a digital backlit LCD screen that shows clear results regardless of day or night for easy reading. 5. Compact and Portable: Designed to be handheld and lightweight, this alcohol detector is ideal for personal use and on-the-go testing. Package includes: 1 x Alcohol tester Note: Images are for illustration purposes only. Due to differences in monitors and lighting effects, the actual item color may vary slightly from the images shown. Thank you. Please allow 13cm measurement deviation due to manual measurement.