extech emf450: multi-field emf meter

measures magnetic field, electric field and radio frequency strength

• multi-field measurements: magnetic field, electric field, and radio frequency (rf) strength
• magnetic field triple axis sensor (x, y, z)
• audible alarm
• 2.4'' (240 x 320 pixels) color tft display
• adjustable screen brightness (low, medium, high)
• store up to 20 rf historical records
• data hold and auto power off with disable feature
• five languages: english, traditional/simplified chinese, japanese, spanish
• complete with 3 aaa batteries and usb power supply cable