1. Product introduction

QT201 economical Ringelmann blackness meter is a special instrument for environmental protection departments and industrial and mining enterprises to monitor environmental pollution and energy conservation. It shrinks the standard Ringelmann smoke concentration map commonly used in various countries on a piece of glass, and can visually measure the smoke blackness. By comparing the Ringelmann image seen from the telescope eyepiece, the smoke blackness can be determined. . The image of the instrument is clear and the shape is beautiful.

2. Product parameters

1. The magnification of the telescope viewing angle is 10 times
2. The working distance of the instrument is 10 to 500 meters
3.Objective lens clear aperture 50mm