The ELF PF4 is a unit of measurement of low-frequency electromagnetic fields produced by EMFields (UK).

This device allows reading, simply, of electric and magnetic radiation levels, separately, in a building, or in outdoor environment.

The appliance is intended to detect radiation in frequency of 10 Hz to 2000 Hz.
The sensitivity to electrical fields is 0 to 1999 v/m (volts per metre).
The sensitivity to magnetic fields is 0 to 19.99 micro teslas.

The MagneMeter, produced by EMFields (UK), is a unique measurement of magnetic fields caused by low-frequency electrical currents.

This device allows reading, simply, levels of magnetic radiation in a building, or in outdoor environment.

The appliance is intended to detect magnetic radiation translated to a scale represented by a series of LED lamps.
There are two models, being a graduate in microteslas unit (international standard) and another in miligauss unit (standard used in USA, Australia and Canada, for example).

It is a using simple equipment, intended to perform a quick review the electrical and magnetic pollutions of low frequency  de  16 Hz to 2 KHz in a given space.
Its use allows assess the need to implement measures to protect against the possible radiation and of Verify the effectiveness of the actions undertaken.

It is an equipment designed to carry out an evaluation of electrical and magnetic pollutions of low frequency of 16 Hz to 100 KHz, in a given space.
Its use allows assess the need to implement measures to protect against the possible radiation and of verifying the effectiveness of actions undertaken.