RNI · RF Safety

Non-ionizing radiation (RNI / NIR), measured to standard

Assessment of electromagnetic field exposure and RF safety per regulation. Protection of workers and the public from non-ionizing radiation.

Ask about RF exposure measurement → View instruments

RNI

ICNIRP /
FCC

instrument
categories

✓

local
calibration

[ RNI ] — Definition

What is non-ionizing radiation (RNI)?

Non-ionizing radiation (RNI, also NIR) is electromagnetic radiation that does not carry enough photon energy to ionize atoms or molecules. According to ICNIRP's classification, it includes static and low-frequency fields, radiofrequency (100 kHz to 300 GHz, where telecom antennas operate), infrared, visible light and ultraviolet.

Measuring RNI makes it possible to verify that the exposure of workers and the public stays within exposure guidelines. According to the WHO, ICNIRP's guidelines are the basis of most national standards.

At Tecnous we work with instruments from Narda Safety Test Solutions to measure RNI at antenna sites, populated areas and industrial installations.

Sources: ICNIRP: non-ionizing radiation · ICNIRP: radiofrequency fields (100 kHz to 300 GHz) · WHO: Radiation, electromagnetic fields (questions and answers)

[ 01 ] — About RNI Radiation

The RNI Radiation challenge

Measurement of non-ionizing radiation (RNI) is mandatory to certify the safety of antenna sites and populated areas. It requires calibrated instruments and regulatory knowledge.

Tecnous represents Narda — the world reference in RF safety — with regulatory advice and traceable calibration for measurements that must comply with regulation.

Regulatory complianceMeasurements must respect ICNIRP/FCC limits and be defensible before the regulator.

Worker exposurePersonnel on towers and sites need protection from RF fields.

Source identificationIn multi-source environments selective per-frequency measurement is required.

[ 02 ] — Solution coverage

From broadband to selective measurement

We cover RF safety assessment in every exposure scenario.

High Frequencies

Measurement of exposure to high-frequency fields (RF/microwave) at antenna sites.

RFMicrowaveExposure

Low Frequencies

Assessment of low-frequency fields on power lines and industrial installations.

ELFPowerField

Selective Measurements

Selective per-frequency analysis to identify and quantify individual sources.

SelectiveSpectrumSRM

Area Monitoring

Continuous monitoring stations for electromagnetic fields in sensitive zones.

AreaContinuousAMB

Personal Protection

Personal RF exposure monitors with alarm for workers at height.

WearableAlarmSafety

[ 03 ] — Product catalog

All instruments

High Frequencies

Narda

NBM-550

NBM-550 is part of the NBM-500 family of instruments. It delivers extremely accurate results for electromagnetic field intensity measurements. NBM-550…

High Frequencies

Get a quote → | View sheet

Narda

FieldMan

Narda has opened new dimensions in the versatility and handling of electromagnetic field measurement devices with FieldMan. This lightweight, easy-to-…

Non-directional measurement using isotro…Large, sunlight-readable 5" diagonal col…Digital probe interface for broadband an…

Get a quote → | View sheet

Low Frequencies

Narda

EHP-50F

Isotropic measurement of electric and magnetic ELF fields. Frequency-selective FFT measuring system with high dynamic range for electric and magnetic…

Low Frequencies

Get a quote → | View sheet

Selective Level Measurements

Narda

SRM-3006

Complete, easy-to-use test system, consisting of a base unit and measurement antennas, for non-directional detection of fields and their sources in th…

Selective Level Measurements

Get a quote → | View sheet

Narda

Antena 5G FR2

Extends the SRM-3006 to cover from 24.25…Calibrated antennas for reliable measure…Measurements are displayed in field inte…

Get a quote → | View sheet

Area Monitoring

Narda

AMB-8059

Narda multiband area monitors are constantly used in areas where electromagnetic radiation levels need to be continuously assessed through long-term o…

Area Monitoring

Get a quote → | View sheet

Personal RF Safety Monitor

Narda

RadMan 2

More than 20 years of experience with the best-selling personal RF monitors of all time come together in the new RadMan 2. This small device reliably…

Personal RF Safety Monitor

Get a quote → | View sheet

Narda

Nardalert

Personal radiation monitor for electric fields with interchangeable sensor modules

ACGIH IndustrialARPANSA RP S3, occupationalBGV B11, 2001, EXP.1 (occupational)

Get a quote → | View sheet

[ 04 ] — More than instruments

The support that makes
the real difference

Technical training

Tecnous Academy trains your team in the correct use of the instrument and interpretation of results.

Certified calibration

Accredited lab with NIST traceability. Keep your instruments within spec without sending them abroad.

Pre-sale advice

We help you choose the right instrument for your application, volume and budget. No over-selling.

[ FAQ ] — Frequently asked questions

Frequently asked questions about RNI

What is non-ionizing radiation (RNI)?

Non-ionizing radiation (RNI) is electromagnetic radiation that does not carry enough energy to ionize atoms or molecules. It includes the radiofrequency from telecom antennas, as well as low-frequency fields, infrared, visible light and ultraviolet.

What is the difference between broadband and selective measurement?

Broadband measurement gives the total field level from all sources combined and allows a quick exposure assessment. Selective measurement analyzes the field by frequency, so it identifies and quantifies each source separately, which is needed in environments with several sources. At Narda, the NBM series is broadband and the SRM series is selective.

Which instrument protects personnel on towers?

Personal RF exposure monitors: they are worn on the body and sound an alarm when the field approaches or exceeds the configured limit. Narda offers the RadMan 2 personal RNI monitor and the Nardalert.

Does Tecnous calibrate the equipment?

Yes. Tecnous offers certified calibration with NIST traceability, to keep instruments within specification without sending them abroad.

Which regulations apply in my country?

It depends on the country: its regulator defines it, and according to the WHO most national standards are based on ICNIRP guidelines. Write to us with your country and type of installation and a Tecnous specialist will advise you on the applicable standard and how to document the measurement.

Non-ionizing radiation (RNI / NIR), measured to standard

What is non-ionizing radiation (RNI)?

The RNI Radiation challenge

From broadband to selective measurement

All instruments

The support that makesthe real difference

Frequently asked questions about RNI

Let's build the right kitfor your project.

The support that makes
the real difference

Let's build the right kit
for your project.