Abstract

Overview

We investigated the radiofrequency exposure from various baby monitoring devices across the frequency range of 400 MHz to 2.45 GHz, specifically examining the peak spatial-averaged specific absorption rate (SAR) and the time-averaged root-mean-squared (RMS) electric fields.

Findings

• The study involved nine commercially available baby monitors.
• Measurements were taken to calculate the SAR in 10 grams of simulated head tissue and the electric field strength at a 50 cm distance from the devices.
• The highest observed SAR was 0.37 W/kg, which is significantly lower than ICNIRP's restriction of 2 W/kg.
• The maximal RMS electric field strength measured was 1.51 V/m.

Conclusion

Despite the devices operating within ICNIRP guidelines, it is crucial to note that these guidelines primarily cover short-term thermal effects and may not fully account for potential long-term health risks associated with electromagnetic field exposure.