A GSM tester, also known as a Grammage or GSM cutter machine, measures the Grams per Square Meter (GSM) weight of paper or similar materials. This specialized device precisely cuts a standardized sample size and weighs it to determine its GSM value. Commonly used in the paper industry, printing, and packaging, it ensures consistency and quality by verifying the weight of paper products. The GSM tester is an indispensable tool for manufacturers, enabling accurate assessment and compliance with desired GSM specifications for various applications.