B"H This liquid filled pressure gauge measures pressure from 0-3000 PSI. Ideal for hydraulic or pneumatic systems, compressors, pressure washers, and other fluid power applications. The 0-3000 PSI range is the go-to specification for hydraulic power units (HPUs), skid steer and tractor hydraulic systems, and high-pressure test benches found in manufacturing and repair facilities. Liquid filling dampens needle vibration for stable, accurate readings in high-pulsation environments.