In recent years, single-officer law enforcement audio and video recorders have been widely used in the national public security system, promoting the openness and intelligence of law enforcement processes. The new generation of recorders features night vision, remote control, and intelligent cloud storage, enabling continuous recording in complex environments.

With increasing public awareness of safety, home-use breathalyzers are gaining popularity in the market. Consumers can test their blood alcohol concentration after parties or drinking occasions to ensure safe driving.

Recently, public security departments in many regions have begun to comprehensively deploy single-officer law enforcement audio and video recorders to enhance the transparency and credibility of law enforcement. This device can record officers' audio and video information in real time during law enforcement activities, providing reliable evidence for case investigations and liability determination.

Recently, many companies have purchased alcohol testing devices for daily employee safety management, especially in industries involving transportation, construction, and heavy machinery operation. Alcohol testing devices help companies promptly detect employees with excessive alcohol levels, reducing the occurrence of accidents.