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 10 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