DAK-12 (4 MHz – 3 GHz)

DAK-12 (4 MHz – 3 GHz)

Fast & Precise Dielectric Measurements


Download Product Flyer (PDF, 1.0 MB); DAK intro video

This precision dielectric measurement system is designed for applications in the 4 MHz – 3 GHz frequency range. Our novel algorithms combined with precise calibration enables correction for electrode polarization and extension of the lower end of the frequency range from 50 MHz down to 4 MHz. The system uses an open-ended coaxial probe with advanced algorithms and novel hardware to measure the dielectric properties of liquids, solids, and semi-solids over a broad range of parameters. The measurement method is fast and non-destructive to the material under test.

  • Characterization of materials for the electronics, chemical, food, and medical industries, including human tissues.
  • Measurement of complex permittivity of tissue simulating liquids for MRI safety of patients with active implantable medical devices (AIMDs).


1 DAK-12 Dielectric Probe
1 DAK-12 Short
2 DAK-12 MSS
1 high-precision cable (PC3.5 F connectors, 1 m long)
1 thermometer
1 DAK verification kit
1 probe stand
1 DAK manual
1 DAK software and license

Probe Description

Connector Type: 3.5 mm male
Outer Conductor Inside Diameter: 12 mm
Inner Conductor Diameter: 3.18 mm
Flange Diameter: 48 mm
Dielectric Bead Material: Eccosotck
Flange: Stainless steel
Immersible Length: 50 mm
Robustness: High resistance to corrosive materials
Operating Temperature Range: 0 - 60 °C


Calibration is performed according to SPEAG's high-quality standards; DAK probe calibration included within the scope of SPEAG's ISO/IEC 17025 accreditation; suitable for measurements with small and known tolerances.


Many advanced features

VNA Compatibility

Compatible with the most popular vector network analyzers (VNA) on the market; please see our list of currently supported VNAs; ask about our attractive system packages with the VNA from Rohde & Schwarz.

Upgrade Options

Extending the upper frequency to 20 GHz:
1 DAK-3.5 Dielectric Probe
1 DAK-3.5/1.2 Short
2 DAK-3.5/1.2 MSS

Extending the upper frequency to 50/67 GHz:
1 DAK-3.5 Dielectric Probe
1 DAK-1.2/1.2E Dielectric Probe
1 DAK-3.5/1.2 Short
4 DAK-3.5/1.2 MSS
1 high-precision cable (PC2.4 or 1.85 F connectors, 0.5/0.4 m long)


Please ask for a quotation from your nearest SPEAG representative or contact us at