Offices Nationwide

Sound Levels
Decibels (dB) are most commonly used as a measure of sound level, but they are also used in electronics, signals and communications...more

Good Hearing?
A typical person with good hearing can hear from about 20Hz to 20kHz (the audio bandwidth). A person's voice will usually range from 500Hz to 2kHz...more
Our other services include:
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Display Energy Certificate can also be known as:
DEC,
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Company No. 06728970
In County G
DEC in Glamorgan, DEC in Gloucestershire, DEC in Grampian, DEC in Greater Manchester, DEC in Gwent, DEC in Gwynedd County,