就是测house电磁幅射强度的,即下述文章有大量不错信息。给关心健康的朋友推荐下。For the vast majority of people, getting somewhere into the "Slight concern" level will be quite healthy for them, as these levels are on a par with the general consensus for EMF exposure among non-industry EMF experts and researchers around the world. For instance, the "Slight concern" level for AC magnetic field exposure in the building biology profession is 0.1-1.0 milliGauss (mG), while the generally accepted safe magnetic field exposure level according to most experts is 1-2 mG.: ?' f/ x6 d% Z0 |: C1 U' z" Y
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http://www.createhealthyhomes.com/emf_meters.php