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Instruments

Broadband RF power-density meter

The general-purpose instrument for Wi-Fi, cellular, 5G, smart meters and cordless phones: reports total power density across a wide band in µW/m² or mW/m², with peak-hold and average modes.

roughly 200 MHz – 8 GHz for consumer unitssingle-axis

Last verified 12 August 2026.

Also searched as: RF meter, microwave meter, high frequency meter

Band covered
roughly 200 MHz – 8 GHz for consumer units
Quantities measured
power density, electric field strength
Axes
single
Typical price
$150–$500

Detects

  • Cellular downlink and uplink in the covered bands
  • Wi-Fi 2.4 GHz and 5 GHz
  • Smart-meter and other 900 MHz ISM bursts
  • DECT cordless phone beacons

Cannot detect

  • Power-frequency magnetic and electric fields — a different instrument entirely
  • Signals below the meter's lower frequency limit, which excludes FM broadcast on most consumer units
  • 6 GHz Wi-Fi 6E/7 and mmWave 5G on units that stop at 6 GHz or 8 GHz
  • Which service a reading came from — broadband meters give a total, not a spectrum

What to insist on

  • Peak-hold as well as average mode: pulsed sources read many times higher on peak
  • Stated frequency range that actually covers your bands of interest, including 6 GHz if you have Wi-Fi 6E or 7
  • Readout in µW/m² or mW/m² rather than an unlabelled 0–100 scale or a colour LED
  • An external or clearly specified antenna, isotropic or with a documented pattern
  • A published calibration statement

Example models in this class

  • Safe and Sound Pro II
  • Cornet ED88TPlus5
  • Acoustimeter AM-11
  • Gigahertz Solutions HFE59B
  • Latnex AF-5000

About the model list

Named models illustrate the class and are not endorsements or verified specifications. Confirm the current frequency range and calibration statement with the manufacturer before purchase.

Related records

  • RF room survey

    How to measure radiofrequency exposure in a room so the result is reproducible: peak and average, at body positions, with the dominant direction identified.

    Measurement protocols

  • Power density

    Radiofrequency energy flow per unit area — µW/m² on consumer RF meters, mW/cm² in FCC rules, W/m² in ICNIRP guidelines. 1 mW/cm² = 10 W/m² = 10,000,000 µW/m².

    Quantities & units

Sources

  1. sbm-2024 Building Biology Evaluation Guidelines for Sleeping Areas (SBM-2024) — Institut für Baubiologie + Nachhaltigkeit (IBN), 2024. ngo, link checked 2026-08-12.
  2. fcc-1310 47 CFR § 1.1310 — Radiofrequency radiation exposure limits — U.S. Government Publishing Office (eCFR). regulation, link checked 2026-08-12.

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