Comparison Testers

These pumps are used for checking pressure instruments against a master test gauge or transducers. They are portable and rugged. A stainless steel bottom plate with mounting holes is applied for stable bench mounting.

Comparison testers are available in 2 versions – to view our range please select which type you require:
(the COP700 is also available in 1400 bar and the COP7000 is also available in 4000 bar)

We manufacture and supply a comprehensive range of primary standards test equipment, including Deadweight Testers, Comparison Testers, Gas Regulators and an extensive line of accessories.

We have a dedicated Deadweight Tester website, the following pages will open the relevant product information page whilst still providing ‘one click’ access back to this site.

For our full list of Comparison Testers please visit:


Our dedicated deadweight testers website



+44 (0)117 9654615