LX-9621数字照度计是一款经济实用的测量仪器，主要用于测量光度和亮度。它采用数字显示方式，有效避免了读数误差。该设备的传感器与显示表分离，使用起来十分便捷。其测量范围为0-50000LUX，分辨率为1，准确度为±5%。此外，LX-9621还具备最大值保持功能和低电压提示功能，能够满足不同场景下的测量需求。

LX-9621数字照度计的外壳采用重量轻而坚硬的ABS塑料，结构紧凑，便于携带。其主机尺寸为132×64×30mm，重量仅为280g（含电池），传感器尺寸为96×58×16mm。该设备使用4节7号电池供电，适合在多种环境下使用。

在应用方面，LX-9621数字照度计广泛应用于电光源、科研教学、冶金建筑、工业检测，以及农业科研、光照控制等领域。无论是测量车间的光照强度，还是检测教室的照明情况，亦或是对光源进行精确测量，它都能提供可靠的测量结果。总之，LX-9621数字照度计以其准确、便捷的性能，为用户在光度测量方面提供了有力支持。

The LX-9621 digital illuminance meter is an economical and practical measuring instrument, mainly used for measuring photometric and brightness. It adopts a digital display method, effectively avoiding reading errors. The sensor of this device is separated from the display table, which makes it very convenient to use. Its measurement range is 0-50000LUX, with a resolution of 1 and an accuracy of ±5%. In addition, the LX-9621 is equipped with a maximum value hold function and a low voltage indication function, which can meet the measurement needs in different scenarios.

The LX-9621 digital illuminance meter has a lightweight and sturdy ABS plastic shell, compact structure, and is easy to carry. Its host size is 132×64×30mm, and the weight is only 280g (including battery), while the sensor size is 96×58×16mm. The device is powered by four AAA batteries, making it suitable for use in a variety of environments.

In terms of application, the LX-9621 digital illuminance meter is widely used in electric light sources, scientific research and teaching, metallurgical construction, industrial inspection, as well as agricultural research and light control fields. Whether it is measuring the light intensity of a workshop, inspecting the lighting conditions of a classroom, or making precise measurements of light sources, it can provide reliable measurement results. In summary, the LX-9621 digital illuminance meter, with its accurate and convenient performance, provides strong support for users in photometric measurement.