An in-depth review of the scientific literature by the World Health Organization (WHO) revealed that the small amount of radiofrequency (RF) energy produced by advanced meters is not harmful to human health.
In the United States, the limits for human exposure are those adopted by the Federal Communications Commission (FCC). The FCC maximum permissible exposures (MPEs) are applicable because the meters communicate over FCC licensed frequencies. In addition to the FCC MPEs, the Institute of Electrical and Electronics Engineers (IEEE) has published recommendations for safe exposure limits (IEEE, C95.1).
RF emitted by advanced meters is well below the limits set by Federal Communications Commission and it is below levels produced by other common household devices like cell phones, baby monitors, satellite TVs, and microwaves. In fact, you would have to be exposed to the RF from an advanced meter for 375 years to get a dose equivalent to that of one year of 15-minutes-per-day cell phone use.
No credible evidence shows any threat to human health from RF emissions at or below RF exposure limits developed by the FCC. With over 25,000 articles published on the topic over the last 30 years, scientific knowledge in this area is now more extensive than for most chemicals.