This pneumatic comparison test pump is designed for testing pressure measuring instruments against master test instruments. This cost effective instrument provides precise control for important calibration requirements and include many features found in our popular line of pneumatic deadweight testers.

Key features
• Dual pressure/vacuum capability
• Bench mount design
• Built-in handpump as pressure/vacuum source
• High quality needle valve for fine control
• Test port adapters that require no PTFE tape or wrenches

Metric & Inch Reading - Graduation: 0.02mm/0.001"

Incorporating Quadri feature - gives outside, inside, depth and step readings.

Fine adjustment feature allows improved sensitivity of slider movement.

14° vernier face angle reduces parallax.



Satin chrome finish with clear easy read graduations.

• OpenJaw™ design: measure current without breaking the circuit

• Tester automatically selects AC or DC voltage, up to 1000 V

• Work in tight spaces with detachable Slim Reach probe tips

Now there is one intrinsically safe digital multimeter (DMM) you can use in IIC (gas), in Zones 1 and 2, and IIIC (dust), Zones 21 and 22. Whether you work in an oil, chemical, or pharmaceutical environment , all the test and troubleshooting capabilities you need are in the most robust and intrinsically secure (IS) Fluke DMM ever made. The Fluke 28 II Ex is also water, dust and drop resistant. You will be equipped to solve all problems, inside and outside the danger zone, without compromising on compliance or measurement performance.