Small ergonomic design stores 100 datasets and operates on 9V power for easy carry pressure testing in extreme environments Professional Digital Handheld Manometer with ±0.3% accuracy for precise differential, gauge, and absolute pressure measurements in HVAC systems and industrial applications Features a 2.8' backlit LCD, IP54rated rugged design, and USB data export for easy analysis in lab or fieldwork Essential tool for HVAC technicians, laboratory engineers, and industrial maintenance professionals requiring stable pressure diagnostics Use scenarios Infield HVAC service and installation: check duct and refrigerant pressures, monitor differential pressures across filters and components, and perform reliable tests in harsh environments with portable 9V power Laboratory testing and data analysis: record pressure data, export via USB for trend analysis, calibration records, and documentation in controlled environments Industrial maintenance and monitoring: diagnose system stability by measuring differential, gauge, and absolute pressures in pipelines, valves, and equipment using a rugged, IP54rated instrument