As regulatory standards change and evolve, it is important to have the best tool for the job. New standards were introduced through RSS-102 in late 2025, which influenced the thresholds for product testing in high and low frequencies. 

If your product operates in the 3 kHz to 10 MHz range, getting the right test for the job is essential to make it to market. Emitters like RFID readers and WPT (Wireless Power Transfer) systems have different needs than higher frequency electronics like smartphones. A SAR (Specific Absorption Rate) test handles frequencies between 4 MHz – 10 GHz while Power Density Testing handles the frequencies above 10 GHz; so where does Nerve Stimulation Testing fit in? 

Where does Nerve Stimulation Testing Fit in?

For manufacturers of WPT and ISM (Industrial, Scientific, and Medical) equipment, the technical challenge is unique. Unlike higher frequency tests that measure thermal heating, low frequency fields interact with the body through electrostimulation. Nerve Stimulation Testing handles much lower frequencies than a SAR test can handle, as low as 3 kHz. Devices like key cards and car fobs are great examples of devices that need to emit RF (radio frequency) energy but do not reach the frequency requirements of a SAR or Power Density test. 

If unregulated, those frequencies can cause electromagnetic fields that interfere with your muscles, nerve impulses, or even medical implants. Because the effect of these frequencies is instantaneous, a traditional 6 minute SAR test would not apply. It is important to target the specific frequency range relevant to your audience before testing. A device can be thermally safe but still fail a Nerve Stimulation audit due to the high-intensity pulses that trigger a biological response.

How Nerve Stimulation Testing Works

Nerve stimulation testing focuses on measuring Incident magnetic (H) and Electric (E) fields in the air directly surrounding the device. The process begins by performing a spectrum analysis of the target device to obtain the fundamental frequency. Once the frequency is determined, the product is placed under load to generate a magnetic field. Using specialized probes, the product is scanned from all sides and the test results are made available by the engineer.

RF Exposure Lab is Here to Help

RF Exposure Lab can help you determine which test is necessary for your products based on their operating frequency and other indicators. Our lab has the capabilities and equipment available to test at a multitude of hard to reach frequencies, ensuring that we can always meet our clients’ needs. 

Our expert team knows that the wireless device testing landscape is constantly changing, which is why we do the work of staying on top of it so our clients don’t have to. Through our unique expertise and commitment to our clients, we guarantee accurate testing and results.

We offer testing services for a variety of wireless devices including wireless modems, laptops, tablets, cell phones, medical products, and much more. If you’re looking for wireless device testing help provided with speed, accuracy, expertise, and integrity, contact us to get a quote or learn more about our services.