The CTR-2000 High-Precision Semiconductor Breathalyzer is a reliable and portable alcohol testing device designed for fast and accurate BAC measurement. Equipped with an advanced semiconductor sensor, it provides a measuring range of 0.00–200 mg/100 mL and delivers quick results on a clear digital display. Its compact ABS body, rechargeable 3.7V/200mAh lithium battery, and lightweight design make it ideal for personal and professional use. The device supports over 10 hours of continuous operation and offers an optional voice broadcast feature for enhanced convenience. Waterproof construction and easy USB charging ensure durability, portability, and dependable performance in various environments.