Having an EMF detector permanently on hand offers you peace of mind in understanding your electrical enviornment. By measuring the electromagnetic fields in your home you are able to take appropriate steps to reduce their impact.
An EMF meter is also very useful to take on holiday if you are particularly sensitive. It is also convenient if you are in rented accomodation and need to measure the fields in your new home.
If you wish to try before you buy then we do offer meters and packs for hire here.