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Gigahertz HF Analyser HF35C


The Gigahertz HF Analyser HF35C is a highly accurate RF detector. With a real LogPer antenna to detect and measure exposure to high-frequency electromagnetic radiation (EMR/HF), it is ideal for shielding projects when mitigating mobile mast radiation or smart meter or DECT cordless phone emissions, as the accurate directional capability allows you to adjust your shielding plan accordingly.

Highly Accurate

Fast delivery 48 hours

FREE UK Shipping On Orders Over £150

It offers:

  • With the audio analysis of the HF35C, even technical laypersons without electronic expertise can distinguish between most radiation sources such as mobiles, WiFi, smart meters, radar, etc. Simply by listening and comparing with sound examples provided on our website.
  • Factor 10 more sensitive than the HF32D (display resolution: 0.1 µW/m², (maximum 1999 µW/m²). The high-resolution is for electrosensitive persons (EHS).
  • Measures peak and average values (switchable).

It also features all common advantages of the series:

  • It is fully frequency compensated, i.e. no frequency range is overrated, underrated or even ignored.
  • In addition, our measurement technology always shows the SUM of ALL existing radiation at the place of measurement, not only the strongest signal, as is the case with the cheap – allegedly – very broadband detectors that have been launched on the market in recent years.
  • The two features mentioned above are extremely important for a meaningful measurement and technically very difficult to implement. This is also the reason for the unique position of our instruments in their respective price class.
  • The measured values are displayed reliably and directly in the unit of the building biology precautionary values – without any calculations being necessary.
  • The HF-Analysers are equipped with a fully-fledged LogPer antenna. This clearly sets them apart technologically from compact pocket devices without an external antenna. Their LogPer antennas allow users to detect and measure even hidden sources of high-frequency electromagnetic radiation (HF). The measurement can take place both indoors and outdoors (protect the meter from moisture!).
  • Detailed measuring instructions with limiting values allow a reliable evaluation of the personal exposure – even without technical expertise.
  • Last but not least: Many patents have been granted to us, the devices have ten thousandfold proven their reliability, and have shown to be leading-edge in their price categories.




RF (Radio Frequencies)


Frequency range: 800 MHz – 2.7 GHz

Measurement range: Power flux density: 0.1 – 1999 µW/m²


Basic accuracy (CW) including linearity tolerance: +/- 6 dB
Zero offset and rollover +/- 9 digits

All EMF detectors have a specific warranty against manufacturing defects and a return to base warranty depending on its manufacturer. As merchants, we are committed to total customer satisfaction and our free return policy is applicable only when the product arrives in a defective state. Otherwise, the customer shall pay return fees to receive a refund.


If you are a UK customer and suffer from Electrical Hypersensitivity (EHS), then you are eligible for full VAT relief on items for personal use such as Bed Canopies, Sleeping Bags & Bed Sheets. Click here for more details on disability under the Equality Act 2010.

Complete your order as normal and when you are ready to check out, select the Disability VAT Exemption option and fill in the form. The form will be saved in your customer profile and VAT will be automatically deducted in all your purchases. 

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If you have questions or doubts please send an email to: [email protected]