Omega’s calibration pumps feature precise calibration and are made to deliver long-term reliability even in harsh environments. Our hand-held pumps are available in pneumatic and hydraulic models and come in four varieties. They include precision Vernier for extra-fine adjustments and mash-proof Schrader valves instead of less-reliable needle valves. Pumps can be purchased separately or as a kit that includes a carrying case, tubing, and fittings. Get the most rugged and dependable calibration pumps available from Omega and save!