FieldSENSE Designed for RF Tower Technicians’ RF safety

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.