Grainger offers a wide range of digital pressure meters, manometers, micromanometers, and dataloggers for measuring/testing air or gas pressure. Use with transducers and transmitters to measure hydraulic or pneumatic pressure in HVAC systems; laboratory testing; field calibration; medical respiratory support equipment; and hydraulic, machine tool, refrigeration, test/measurement, and general purpose industrial process applications. Manometers also measure low positive, negative, or differential air and gas pressures in dust collection systems, noxious fume/airborne particulate exhaust systems, and HVAC filter banks. Pressure meter and manometer accessories include manometer fluids and oils, adapters, connector kits, water coloring agents, software, and stands. Shop Grainger today for all your pressure measurement supplies.