The ME3830B is the entry-level meter that we recommend for electric fields and magnetic fields. It has a separate setting for electric, and a separate setting for magnetic.
You can measure things like fields emitted from home wiring, transformers, appliances and electronics, and virtually anything electrical and any wiring. Know what fields are coming out into the rooms and into the space where you and your family and friends spend time. Not only can you measure to see what's there, but you can change wiring or devices, or shield, and compare measurements after you make changes to verify that you've lowered or eliminated readings.
This is a very good meter for its price range. It's very accurate and picks up just about everything in its advertised frequency range of 16 Hertz to 100,000 Hertz (100 kHz). It can even pick up dirty electricity to an extent, though it is not a replacement for the Stetzerizer Meter.
You may also consider the upgrade to this meter - the ME3840B. The 3840 adds slightly greater frequency range, and a very handy frequency filter to help you focus in on what you're measuring.