FieldSENSE Designed for HVAC Technicians’ RF safety

As an HVAC or rooftop technician, safety should be top of mind in your day-to-day operations. Depending on the job site, one of the safety hazards you need to consider is exposure to EMF radiation from cell phone antennas, amongst others.

The fieldSENSE personal RF monitor is a game changer for HVAC and rooftop technicians.
It provides accurate readings for the environment you are in, taking into account all sources of radiation that you may be exposed to, allowing you to take the necessary steps to ensure you are not overexposed.

The fieldSENSE personal RF monitor can help you stay safe if you’re concerned about EMF exposure. This device continuously measures the level of EMF radiation around you and alerts you if it exceeds safe levels. Simply wear it on your belt; it will sound an alarm if the EMF levels get too high.
Find a distributor
Please give us a call on  (312) 260-6055 or visit any of our direct suppliers below.
fieldSENSE60
fieldSENSE60 RF personal safety monitor for workers around 5G and high-frequency antennas

Recommended retail price: USD 799

The fieldSENSE60, with extended frequency range, is specifically designed for people whose work takes them near transmitting antennas. This means you can work with confidence in the near-field of a broadcast system or in the far-field of a 5G mmWave system. Exposure is accurately assessed, and a warning is sounded, should the levels approach and exceed the occupational limits.

  • Frequency: 50 MHz to 60 GHz
  • Usage: From FM radio, terrestrial television up to mmWave 5G and beyond
  • Shaped Frequency response (E- & H-fields)
  • Two-year calibration interval
  • Two-year warranty included
 
Infographic comparing frequency response ranges of fieldSENSE60 and fieldSENSE 2.0. fieldSENSE60 covers 50 MHz to 60 GHz including mmWave 5G. fieldSENSE 2.0 covers up to 6 GHz.
fieldSENSE 2.0
fieldSENSE 2.0 personal RF monitor for technicians working around broadcast and cellular antennas

Recommended retail price: USD 599

The fieldSENSE 2.0 has a proven track record of ensuring on-site employee safety. The frequency range covers all typical television and FM radio broadcast services and legacy mobile telecommunications services, amongst others. Exposure is accurately assessed, and a warning is sounded, should the levels approach and exceed the occupational limits.
  • Frequency: 50 MHz to 6 GHz
  • Usage: FM broadcast systems, mobile telecommunications (excl. mmWave)
  • Shaped Frequency response (E- & H-fields)
  • Two-year calibration interval
  • Two-year warranty included

Product Specifications

fieldSENSE60
Frequency coverage
50 MHz – 60 GHz
Recommended retail price
USD 799
Usage
Full spectrum: FM through to mmWave 5G
Frequency response
Shaped (Occupational / Controlled)
Frequency response to
ICNIRP (2020), FCC [NCRP] OET65 (1997), EU Directive 2013/35/EU, Canada Safety Code 6 (2015)
Sensor polarization
Spherical dual polarised Isotropic (± 3 dB < 6 GHz)
Probes
Electric (E-) and Magnetic (H-) field – 3x orthogonal axis isotropic
Data logging
E-field, H-field, Maximum, 6-min average of Maximum & audio
Voice notes
Yes
Fall detection alarm
Yes – 3-axis accelerometer
Calibration interval
Recommended two-yearly calibration
Support
Calibration & refurbishment
Batteries
2x AAA (LR03) Alkaline batteries & 2x spare batteries
Harness attachment
Harness clip with coiled lanyard
Elastomer strap and wrist strap
Dimensions
146 x 26 x 42 mm | 5.7 x 1 x 1.7 inches
Weight (incl. batteries)
115 g | 0.25 lb
fieldSENSE 2.0
Frequency coverage
50 MHz – 6 GHz
Recommended retail price
USD 599
Usage
FM, television through to mid band 5G
Frequency response
Shaped (Occupational / Controlled)
Frequency response to
ICNIRP (2020), FCC [NCRP] OET65 (1997), EU Directive 2013/35/EU, Canada Safety Code 6 (2015)
Sensor polarization
Spherical dual polarised Isotropic (± 3 dB < 6 GHz)
Probes
Electric (E-) and Magnetic (H-) field – 3x orthogonal axis isotropic
Data logging
E-field, H-field, Maximum, 6-min average of Maximum & audio
Voice notes
Yes
Fall detection alarm
Yes – 3-axis accelerometer
Calibration interval
Recommended two-yearly calibration
Support
Calibration & refurbishment
Batteries
2x AAA (LR03) Alkaline batteries & 2x spare batteries
Harness attachment
Elastomer strap and wrist strap
Dimensions
146 x 26 x 42 mm | 5.7 x 1 x 1.7 inches
Weight (incl. batteries)
115 g | 0.25 lb
Product Overview Videos
FieldSENSE – A Brief History
fieldSENSE60 Personal RF Monitor – Overview
fieldSENSE 2.0 Personal RF Monitor – Overview

FieldSENSE – A Brief History Transcript

Introducing fieldSENSE: A Proven Evolution in Personal RF Safety

The fieldSENSE personal RF safety monitor has evolved significantly over three generations, establishing a strong reputation for reliability, innovation, and performance in electromagnetic field (EMF) monitoring.

Generation 1: fieldSENSE 1.0

  • It supported frequency measurements from 380 MHz to 2.7 GHz, covering key occupational RF exposure bands.
  • This first generation featured a single-probe architecture, suitable for the frequencies and technologies in use at the time.

Generation 2: fieldSENSE 2.0

  • The frequency range was extended significantly, down to 50 MHz, ensuring broader compliance across VHF and UHF bands.
  • The architecture was upgraded from a single-probe to a 3x E-field and 3x H-field probe array, allowing for more accurate field vector measurements and improved spatial averaging.

At the time of its development, frequencies above 6 GHz were primarily limited to point-to-point communication systems, making fieldSENSE 2.0 more than sufficient for most environments.

Generation 3: fieldSENSE 60 – Designed for 5G

  • Frequencies above 6 GHz are no longer exclusive to point-to-point links; they are now widely deployed in 5G broadcast networks.
  • Responding to this shift, the fieldSENSE 60 was engineered to provide full compliance monitoring from 50 MHz up to 60 GHz.

This latest version features a completely redesigned probe architecture, purpose-built to handle the challenges of ultra-high-frequency RF environments.

Engineered for Professionals:

  • Extremely robust
  • Weatherproof and field-ready
  • Built for demanding work conditions

It’s designed to work as hard as you do, offering professionals in telecom, broadcasting, and EMF safety unmatched performance and peace of mind.

fieldSENSE60 Personal RF Monitor Transcript

fieldSENSE60 Personal RF Monitor

Advanced RF Safety for Modern Networks

The fieldSENSE60 is a cutting-edge personal RF safety monitor with a proven track record of protecting professionals in high-exposure environments. Engineered for tower climbers and RF technicians, the fieldSENSE60 ensures you stay safe while working on site.

Expanded Frequency Range

  • From broadcast FM bands
  • All the way up to millimeter-wave 5G systems, reaching 60 GHz

This wide range ensures compliance and protection across legacy systems and modern high-frequency networks.

Real-Time Exposure Monitoring

  • Continuously assesses RF exposure levels
  • Issues immediate alerts if occupational safety limits are exceeded

This direct, real-time feedback allows workers to respond quickly and safely in any RF environment.

Designed for Climbers

  • Includes a secure harness-attachment system
    • Prevents accidental drops
    • Ensures the warning buzzer remains within hearing range at all times

Built to Withstand the Elements

  • Weather-resistant
  • Rugged and dependable
  • Designed to perform in the toughest outdoor environments

You can rely on the device to be there, protecting you through every shift.

Need More Info?

  • Continue watching our product overview videos
  • Or contact our team directly — we’re here to answer any questions you may have

fieldSENSE 2.0 Personal RF Monitor Transcript

fieldSENSE 2.0 Personal RF Monitor

Next-Generation RF Protection for Climbers

The fieldSENSE 2.0 is a next-generation personal RF safety monitor purpose-built to protect workers operating near broadcast and telecom antennas. It’s a significant leap forward from previous models, offering more accuracy, functionality, and ruggedness for professionals who work in RF-intensive environments.

Wide Frequency Coverage

  • 50 MHz to 6 GHz, covering broadcast, VHF, UHF, cellular, and early 5G deployments
  • An upgrade from the original fieldSENSE model, which measured from 380 MHz to 2.7 GHz

This extended range ensures you are protected in both traditional and modern RF workspaces.

Dual-Field Measurement for Accurate Exposure Assessment

  • Simultaneously measures E-fields (electric) and H-fields (magnetic)
  • Accurately assesses total RF exposure regardless of your orientation or position

Smart Features for Real-World Use

  • Isotropic sensing: Measures exposure from all directions when worn on the body
  • Fall detection alarm: Alerts nearby climbers if a fall is detected
  • Drop assist: Built-in alarm helps locate the unit if it’s dropped
  • Voice notes: Record audio reminders like antenna serial numbers or field data
  • Data logging: Automatically records measurements for later analysis via USB using the free downloadable software

Durable and Reliable Design

  • Made from the same material as riot shields for extreme durability
  • Weather-resistant: Operates in outdoor environments
  • Powered by two AAA batteries for convenience
  • Comes with a protective storage case for safe transport

Easy Harness Integration

  • Uses a durable rubber strap, similar to a dive watch strap
  • Thread the strap through the two rear slots
  • Loop around your harness shoulder strap and tighten
  • Keeps the device stable and out of the way while climbing

Where to Buy

The fieldSENSE 2.0 is available from various trusted suppliers.

Instructional Videos
How to take voice notes
Software demonstration
How the fieldSENSE60 works
How the refurbishment program works
How to start using your fieldSENSE
How to use the harness attachments
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Turning the FieldSENSE personal RF monitor on and off is fast and glove-friendly. • To power on the device, simply press and hold the main button. The device activates immediately and begins logging RF exposure data without delay. • To power off, perform the same long press action. The device will shut down cleanly. This intuitive one-button control ensures ease of use, even when wearing protective gloves in the field.
Accurate RF exposure assessment requires the measurement of both the electric (E-field) and magnetic (H-field) components. This is crucial because, in many real-world scenarios—such as when working near FM radio or television broadcast antennas—you are operating in the near-field rather than the far-field region. In the near-field, the relationship between the E- and H-fields is complex and cannot be inferred from just one component. To ensure safety, international RF exposure guidelines – such as those from the FCC, ICNIRP, Safety Code 6, and the EU Directive 2013/35/EU mandate a shaped frequency response. This means they account for the human body’s increased absorption of RF radiation at lower frequencies compared to higher frequencies. The fieldSENSE60 is engineered to comply with these standards by: • Simultaneously measuring E- and H-fields across a wide frequency range, • Applying frequency-weighted (shaped) response curves in accordance with international guidelines, • Calculating the cumulative exposure from multiple RF sources in real time. For example, if you’re exposed to both an FM transmitter and a 5G antenna on the same rooftop, the device quantifies the percentage contribution from each source and provides a combined exposure level. This means you only need to evaluate one clear exposure value, making it easy to determine whether it is safe to work in the area based on the total exposure relative to established limits.
Once powered on, your FieldSENSE personal RF monitor begins logging your exposure environment automatically—with data captured at intervals as frequent as once per second. To access these exposure logs, including any recorded voice notes: 1. Connect the Device via USB: Use the USB port located at the base of the FieldSENSE device. Open the battery flap to access the port, then connect it to your PC using the provided USB cable. 2. Download and Install the Software: Visit www.fieldsense.com to download the FieldSENSE desktop application. Once installed, launch the app. 3. Automatic Time Synchronization: When connected, the software will automatically sync the device's internal clock with your local time zone, ensuring precise time stamps for all logged sessions. 4. Navigating the Interface: Each recorded session—whether it's an exposure log or a voice note will appear in the left-hand panel. Click on a session to view its contents. Use the graph icon to switch between electric field (E) and magnetic field (H) data, displayed separately for detailed analysis. 5. Exporting Data to Excel: Click “Copy as TSV/CSV” on the right-hand side. You can then paste this directly into Excel for advanced graphing and reporting. 6. Device Management: The app displays the device's serial number. If needed, reset the device by clicking “CLR” in the top-right corner and selecting “Erase Device.” This will clear all logs, which is useful for users who frequently log data and want to manage sessions cleanly.
When working at height, a fall can be life-threatening—especially if the worker is rendered unconscious. While a shock-absorbing lanyard system may prevent impact, it does not eliminate the risk of suspension trauma. To address this, FieldSENSE devices are equipped with a built-in fall detection alarm. In the event of a fall: • The device automatically detects the incident. • It then triggers an audible alarm that continues to sound until manually silenced. This alarm helps draw immediate attention to the fallen worker’s location, enabling faster assistance and significantly reducing the risk of suspension trauma. This safety feature is part of FieldSENSE’s commitment to protecting RF workers operating in high-risk environments.
The fieldSENSE60 features a specially engineered harness attachment system, designed to reduce the risk of device drops when working at height. The clip assembly consists of two interlocking parts that attach securely to your safety harness: 1. Installing the Harness Clip: • Start with the smaller rear section of the clip. • Slide it behind the webbing strap on your harness at the point where you intend to mount the device. • Then take the front section of the clip and press it firmly into place until the hooks lock in with an audible click. 2. Attaching the Device: • First, connect the lanyard to the top of the fieldSENSE60. • Then, pass the other end of the lanyard through the slot in the harness clip base. • Pull it downward until you hear a click, confirming the lanyard is securely engaged. Once installed, the fieldSENSE60 is ready for use—safely secured to your harness and protected against accidental drops. For visual guidance, refer to the illustrated instructions in the official user manual.
FieldSENSE personal RF monitors not only continuously assess and log your RF exposure—they also include a convenient voice note recording feature for field documentation. Imagine you're on-site and need to quickly capture a serial number or a critical note. Instead of pulling out your phone and risking damage or loss – like dropping it from a tower—you can simply use the FieldSENSE device itself. To record a voice note: • Double-tap the button on the device. This starts audio recording immediately. • Speak clearly into the microphone – for example, to record a serial number or location detail. • Single-tap the button to stop the recording. These voice notes are automatically time-stamped and paired with the RF exposure data being logged at that moment. Once you're back at your workstation, simply connect the FieldSENSE device to a computer. Using the FieldSENSE software, you can easily download and review both your exposure logs and the associated voice notes—helping streamline reporting, compliance, and incident documentation.
FieldSENSE devices are built to endure the demands of daily fieldwork. Over time, however, even the most reliable monitors may show signs of wear – especially when it's time for routine calibration. That’s where the FieldSENSE Refurbishment Program comes in. When you send your device in through the program, you receive back: • A fully rebuilt unit, • Fresh calibration to ensure continued compliance with international safety standards, • An extended one-year warranty on the refurbished device. This program ensures your device continues to perform at its best – both functionally and physically. For more information or to initiate the process, contact your local FieldSENSE distributor.
Frequently Asked Questions
Who needs RF anyway?
Action at a distance
What is RF?
The characteristics of RF
Is too much of a good thing, bad?
Who is at risk of overexposure?
Isotropic
FieldSENSE personal RF monitors each have a total of six orthogonal E- and H-field probes to ensure that the combination of all sources of radiation from all angles are correctly measured and assessed in accordance with safety limits.
E- & H-fields Measured
RF Safety guidelines use the radiated power density, S in milliWatt/cm2 or Watt/m2, to assess exposure to electromagnetic fields in a given situation. This is derived from the measured E- (electric) and H- (magnetic) fields. To accurately assess a given exposure situation, both of these should be measured, especially when working very low in frequency around FM transmitters for instance. Only measuring E-field in these instances can lead to inadvertent RF overexposure.
Data Logging
The monitors have an advanced E- and H-field data logger, which records all user measurements so that they can be easily accessed over a USB connection to a PC in the office. Additionally, the data can be viewed in real-time over the USB connection with the PC application.
Voice Notes
The inbuilt logging feature allows for quick voice note taking, which can be accessed later in the office. The data is paired with the logged E- and H-fields so specific exposure conditions can easily be tagged.
Shaped Response
The exposure limits, such as the FCC (NCRP), SC6 or ICNIRP limits, are all shaped over frequency. As such, PPE must also have a shaped probe response to accurately measure in accordance with it. RF monitors without a shaped response are inaccurate and can result in an individual being overexposed.
Fall-detection & Alarm
The devices have an inbuilt fall detection system which sounds an alarm should the user accidentally fall. The alarm is easily silenced should the user still be conscious but, should they have been knocked unconscious the sounding alarm will attract the attention of colleagues. This way they are able to immediately initiate rescue actions thus reducing the potential effects of suspension trauma following a fall at height.
Product Features
Isotropic
FieldSENSE personal RF monitors each have a total of six orthogonal E- and H-field probes to ensure that the combination of all sources of radiation from all angles are correctly measured and assessed in accordance with safety limits.
E- & H-fields Measured
RF Safety guidelines use the radiated power density, S in milliWatt/cm2 or Watt/m2, to assess exposure to electromagnetic fields in a given situation. This is derived from the measured E- (electric) and H- (magnetic) fields. To accurately assess a given exposure situation, both of these should be measured, especially when working very low in frequency around FM transmitters for instance. Only measuring E-field in these instances can lead to inadvertent RF overexposure.
Data Logging
The monitors have an advanced E- and H-field data logger, which records all user measurements so that they can be easily accessed over a USB connection to a PC in the office. Additionally, the data can be viewed in real-time over the USB connection with the PC application.
Voice Notes
The inbuilt logging feature allows for quick voice note taking, which can be accessed later in the office. The data is paired with the logged E- and H-fields so specific exposure conditions can easily be tagged.
Shaped Response
The exposure limits, such as the FCC (NCRP), SC6 or ICNIRP limits, are all shaped over frequency. As such, PPE must also have a shaped probe response to accurately measure in accordance with it. RF monitors without a shaped response are inaccurate and can result in an individual being overexposed.
Fall-detection & Alarm
The devices have an inbuilt fall detection system which sounds an alarm should the user accidentally fall. The alarm is easily silenced should the user still be conscious but, should they have been knocked unconscious the sounding alarm will attract the attention of colleagues. This way they are able to immediately initiate rescue actions thus reducing the potential effects of suspension trauma following a fall at height.
User Interface
FieldSENSE devices use high brightness amber LED indicators for direct sunlight visibility and have a loud buzzer to ensure the user won’t miss a thing. Additionally, it is specifically designed to be operated whilst wearing gloves.
Attachments
Devices come with an easily adjustable wrist strap to ensure comfortable attachment while working. Additionally, the fieldSENSE60 harness attachment mechanism has been completely redesigned to include a coiled lanyard system. This facilitates the smooth handling of the device during operations while still remaining visible and audible. Should the device be dropped there is no risk of it falling off the site. A tripod attachment point on the base of the device allows for setting up remote monitoring of a site, or for attaching an extension pole.
AAA batteries
The devices use readily available AAA (LR03) batteries.
“Grippy” design
The device has a custom bevelled design that fits tightly into the user’s hand with a textured soft elastomer surface and grip ridges ensuring no fumble moments.
Rugged IP64 & IK08 Enclosure
The devices have a co-moulded enclosure with a base layer of polycarbonate which is typically used in riot shields, and an outer elastomer layer made of TPU which is designed for hard wearing environments. The design provides for IP64 dust & moisture ingress rating as well as IK08 impact protection.
Zipper Case
Shipped in a heavy-duty zipper case with a custom moulded insert makes for even further protection of the device.
Brochures & Policy Documents
Guides
Software Downloads
Find a distributor
Please give us a call on  (312) 260-6055 or visit any of our direct suppliers below.

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