SBEM’s Automatic Tank Level Gauge 133 ATLG is a globally recognized, float-and-tape operated precision level indicator designed for accurate level measurement in petroleum, refinery, chemical, and petrochemical industries. Featuring a large diameter SS304/SS316 float and a constant force spring for consistent tape tension, it delivers ±2 mm accuracy and 1 mm resolution, even at tank heights up to 22,000 mm. The stainless steel punched tape interacts with a sprocket-driven 5-digit counter for clear millimetre-level indication. Engineered with corrosion-resistant materials, ATLG supports integration with Two Wire Transmitters (133TS), Smart Tank Data Transmitters (133-35), and Limit Switch Assemblies (133-LA) for remote monitoring and control. Optional crank-up mechanisms ensure performance with high-viscosity or solidifying liquids, while liquid seal assemblies prevent vapor escape in blanketed tanks. Ideal for global tank inventory management systems, 133 ATLG ensures durable, accurate, and low-maintenance operation.