A portable visibility detector is a specialized device that can quickly and dynamically measure atmospheric visibility distance. Its core is to convert the subjective feeling of "seeing distance with the naked eye" into accurate digital data. Its essence isMeasure the total extinction coefficient of air using forward scattering method and calculate the current visibility.Core use: Wherever it is needed, it is used. Its value is concentrated in "mobility" and "immediacy", mainly serving scenarios that require quick on-site visibility assessment. Common uses include the following: - Transportation field: Road maintenance personnel temporarily monitor road visibility in rainy and foggy weather, determine whether fog lights need to be turned on, and set warning signs; Railway or port staff shall temporarily confirm whether the visibility of train departure and ship docking meets the standards. -Outdoor operations: For outdoor operations such as power inspection, oil drilling, mining, etc., it is necessary to judge whether it is suitable for high-altitude operations or open-pit construction based on visibility to avoid safety accidents caused by poor visibility. -Emergency rescue: Real time monitoring of fire smoke and visibility of dense fog in mountainous areas during firefighting and mountain search and rescue, providing data support for rescue route planning and personnel safety protection. -Environmental monitoring: Environmental protection personnel temporarily supplement monitoring visibility data in areas prone to haze and around industrial parks to assist in determining air quality conditions. Core features: Why choose "portable" compared to large visibility monitoring stations fixed on roadsides or airports? The core advantages of portable devices revolve around "practical" design: 1 Small size and light weight: The detector is lightweight and can be brought to scenarios without fixed equipment such as mountainous areas and wilderness. 2. Fast startup and easy operation: Testing can begin immediately after startup, without the need for complex installation and debugging. The screen displays data directly, making it easy for non professionals to get started quickly. 3. Flexible power supply: Built in lithium battery can work continuously≥12hOutdoor power outages can also be used continuously.