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Liquid level ruler for measuring liquid nitrogen manually. This 1500mm liquid level meter can provide an easy measurement for a liquid nitrogen tank and cryogenic freezer. Place the ruler to the bottom of the container, hold for a while untill you can see a frost line. There are two models for liquid level ruler, 1500mm and 1000mm, and the logo on the ruler can be customized by users' demand.
Liquid level ruler for measuring liquid nitrogen manually. This 1500mm liquid level meter can provide an easy measurement for a liquid nitrogen tank and cryogenic freezer. Place the ruler to the bottom of the container, hold for a while untill you can see a frost line. There are two models for liquid level ruler, 1500mm and 1000mm, and the logo on the ruler can be customized by users' demand.
