Pre-Shift Alcohol Tester: A triple-function intelligent device integrating "alcohol detection + smart temperature measurement + facial attendance".

Alcohol Detection Function: Utilizes an electrochemical sensor to detect alcohol concentration, featuring blow interruption and airflow detection, anti-cheating design during blowing, breath temperature and inhalation detection; response time ≤20 milliseconds; measurement range: 0–2.0 g/L; indication error: minimal deviation within the alcohol concentration range. The breath-based detection can qualitatively determine alcohol consumption and its level, offering high sensitivity, accuracy, and stable performance, effectively preventing work or driving under the influence. Test data is uploaded and printed in real time.

Smart Temperature Measurement Function: Non-contact body temperature detection using infrared thermal imaging; maximum detection distance up to 1 meter, optimal distance at 0.5 meters; temperature measurement speed <1 second; accuracy ≤0.3°C; measurement range: 10°C to 42°C; automatic alert for abnormal body temperature.

Equipped with facial recognition technology integrating face positioning, capture, tracking, and data collection. Supports dynamic face tracking and mask detection; accommodates a face database capacity of up to 50,000 entries. Suitable for access control and attendance management: comprehensive backend management software allows various data editing operations, supports batch import of personnel lists; 0.3-second fast recognition; 99.7% liveness detection accuracy and recognition rate; supports operation under backlit and low-light conditions indoors and outdoors, adapts to complex lighting environments, ensuring clear image capture.