In order to observe the operation status of equipment and system more intuitively and conveniently, sight glasses are widely used in fields such as brewing, beverages, pharmaceuticals, and dairy products.

TOHON can provide straight through mirrors, illuminated mirrors, and four-way mirrors. The straight through mirror can be installed horizontally or vertically, and can be observed 360 ° through glass protection, making it particularly suitable for online observation of pipelines. The mirror with light is a movable type mirror, which has the characteristics of being able to observe under low light and easy to disassemble and replace, suitable for observing tank equipment.