手持式能见度检测仪主要利用光学原理，通过测量光线在空气中的散射程度来评估能见度。当空气中的颗粒物增多，光线散射程度增强，导致视线模糊，能见度降低。仪器通过内置传感器捕捉这一变化，并将数据转化为可视化的结果，帮助用户了解当能见度状况。
三、技术参数
| 测量范围 | 20 - 10000 m |
| 工作环境 | 温度：-10~ +65 ℃，湿度： 10~ 100 % |
| 数据传输 | 蓝牙模块；无线传输模块： 移动4G DTU （选配） |
| 数据显示 | 2.5吋触摸控制显示屏/手机app软件显示；物联网客户端显示界面（选配） |
| 电 源 | 内部可充电锂电（连续工作大于72小时）/充电适配器 |
| 尺寸及重量 | 230*83mm / 小于0.8kg（不含脚架） |
The handheld visibility detector adopts a unique testing method, which sucks air into a specially designed enclosed air sampling room. It can ensure real-time exchange with the outside air ａnd is not affected by the external spatial environment. It can also measure normally in small indoor spaces.
The handle is made of aluminum alloy material, sturdy ａnd convenient for users to grip with one hand. Internally, it can be equipped with three 18650 rechargeable lithium batteries, ensuring that the visibility instrument can operate continuously for more than 72 hours.
Comes with a 2.5-inch touch screen display, displaying real-time measurement data. Equipped with a built-in Bluetooth module ａnd dedicated APP software, it can receive real-time detection data on the mobile phone; Data can also be synchronized in real-time to the Internet of Things platform for storage or analysis, especially suitable for on-site inspections.
