DHM 4 Series Digital Hydraulic Multimeter, 100 GPM, 6000 PSI, #16 ORB


The DHM 4 Series Digital Hydraulic Multimeter is an all-in-one unit designed to test the performance of hydraulic pumps, motors, valves and hydrostatic transmissions with the added benefit of Bluetooth functionality.

This new generation of testers, aimed at hydraulic field service engineers everywhere, enables you to easily measure the true performance of your hydraulic system, pinpoint faults, and quickly email a test report in just a few presses of your iOS smartphone, using Smart Bluetooth™ functionality and the free-to-download Webtec QuickCert™ App. This truly portable solution means you no longer have to return to the office to send your report as all of this can be achieved while working in a field, a quarry, a construction site or a mine, or just on the factory floor!

The DHM 4 series can measure hydraulic flow, pressure, peak pressure, temperature, power, and volumetric efficiency and includes onboard memory to record a simple 12 point test, more than sufficient to characterize a hydraulic pump’s performance at varying pressures which can be regulated using the built-in loading valve with Interpass™ safety system.

The DHM 4 is the ideal tool for pinpointing hydraulic system faults, reducing downtime, and helping in preventive maintenance.

  • Accurate measurement of flow, pressure, temperature, power, and volumetric efficiency.
  • Produces an electronic report for an immediate email to the user via Bluetooth™ and smartphone app.
  • Automatic calculation of hydraulic power and volumetric efficiency.
  • Built-in loading valve with “Interpass”™ safety system.
  • Bi-directional for unrestricted connection and simplified testing.
  • Portable, robust and sealed to IP54.
  • Large clear digital display with adjustable contrast.
  • Made in the United Kingdom.


  • Pressure: 6000 PSI (414 bar).
  • Flow: 100 GPM.
  • Flow Accuracy: ± 1% indicated reading (15 to 100% of range).
  • Pressure Accuracy: ± 0.5% of full scale, Peak 1%.
  • Temperature Accuracy: ± 2°F (± 1°C)
  • Power: Below 100KW (134HP) ± 3KW (± 4HP); Above 100KW (134HP) ± 5KW (± 6.7HP)
  • Volumetric efficiency: ± 1%
  • 1 ms response time.
  • Choose between – Bar, PSI, MPa, & Ksc.
  • Four screens show all digital values, digital values with a bar graph, & P.Q. Test (volume efficiency).
SKU: HC-DHM4-S-6 Categories: ,

Additional information

Weight 14 lbs
Dimensions 7.87 × 9.45 × 7.87 in
Pressure Rating

6000 PSI
(414 Bar)


100 GPM
(378 LPM)

Port Thread

#16 ORB (SAE)