Abstract

Study Overview

This research assesses the exposure levels to radiofrequency electromagnetic fields emitted by smart utility meters operating at 868 MHz.

Key Findings

• Measurements were conducted under laboratory-controlled environments.
• The maximum 6-minute averaged exposure was recorded at 0.1 mW/m².
• This exposure is signficantly below 0.0024% of the 1998 ICNIRP general public reference level, indicating minimal risk when compared to accepted safety thresholds.
• Duty factors for these devices were less than 2.8%.
• Comparatively, exposure from devices using this technology is on par or lower than those operating at higher frequencies (e.g., 2.4 GHz).

Conclusion

Findings suggest that the exposure levels from Zigbee smart meters operating at 868 MHz are generally lower and safer compared to those from meters operating at higher frequencies. This contributes importantly to ongoing evaluations of safety standards related to electromagnetic field exposures in such technologies.