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 requirement: 3 x AAA 1.5V batteries (not included) Voltage: 4.5V Operating temperature range: -5 to 45 Storage temperature range: -20 to 50 Test method: Semiconductor gas sensor Alcohol concentration range: 0-200mg/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, the actual item color may vary slightly from the images. - Please allow 1-3cm measurement deviation due to manual measurement.