Meters
Low-Frequency Meters
Low-frequency electromagnetic fields (LF) occur wherever current flows—typically at home, in offices, and in technical installations. This includes electric fields (voltage) and magnetic fields (current flow) from 230 V wiring, cables inside walls, power strips, transformers, power supplies, dimmers or larger appliances. Because electric and magnetic fields have different causes and characteristics, it’s important to choose a low-frequency meter that matches your specific question.
In addition, modern electronics can create harmonics in the kHz range (often referred to as “dirty power”). Depending on your measurement task, it can be useful to use measurement technology that not only covers the fundamental range but also captures these components.
With the right LF meter, you create a solid basis for decisions: you can identify if and where elevated fields occur, narrow down typical sources, and compare readings reproducibly—providing the basis for sensible measures (e.g., repositioning, increasing distance, targeted circuit identification, or technical solutions).
Tip: If you are unsure which device fits your application, use our decision aid. It lists all low-frequency meters and measurement ranges clearly.
- Available immediately
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Delivery time: 1 - 3 Workdays (DE - int. shipments may differ)
- Available immediately
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Delivery time: 1 - 3 Workdays (DE - int. shipments may differ)
- Available immediately
-
Delivery time: 1 - 3 Workdays (DE - int. shipments may differ)
- Available immediately
-
Delivery time: 1 - 3 Workdays (DE - int. shipments may differ)
- Available immediately
-
Delivery time: 1 - 3 Workdays (DE - int. shipments may differ)
- Available immediately
-
Delivery time: 1 - 3 Workdays (DE - int. shipments may differ)
- Available immediately
-
Delivery time: 1 - 3 Workdays (DE - int. shipments may differ)
Electric fields and magnetic fields: two measurement tasks
Electric fields are primarily related to voltage, the installation situation and cable routing. Magnetic fields are created by current flow and are often more dependent on load, wiring geometry (e.g., loops) and distance. For a sound assessment, it is therefore useful—depending on your question—to be able to measure electric and/or magnetic fields separately. This is one key difference between professional LF meters and simple “all-in-one” gadgets.
Spot measurement or long-term logging?
A short measurement can provide initial indications—but for a robust assessment, long-term recordings are often helpful, especially in bedrooms or workplaces. This makes typical profiles visible (e.g., at night, during load changes, due to time-controlled devices, or fluctuating consumers). Depending on the device and setup, measurement series can be documented and evaluated clearly—an important basis for consulting, reports, or optimizing your own living and working environment.
Dirty power & harmonics: when the mains becomes “noisy”
In modern buildings, switching power supplies, LED drivers, dimmers or PV inverters can affect the power grid with harmonics in the kHz range (“dirty power”). Whether and how relevant this is in your situation can only be shown by measurement. With suitable LF measurement technology, you can make these effects visible and work on the causes in a targeted way.
Practical measurements—even without a technical degree
Our devices come with practical step-by-step instructions, including building biology guideline recommendations. This enables users without technical background to assess low-frequency exposure reliably, identify typical sources and compare readings reproducibly.
For private and professional use: devices, kits & decision aid
We offer low-frequency meters for beginners as well as for professional applications (e.g., building biology, consulting, clinical practice). If you want a more complete picture, it often makes sense to combine LF with high frequency—please see our measurement cases & kits. For quick selection, use our decision aid. If you have any questions, our team will be happy to help.