In normal use, hearing aids utilise a microphone for amplifying localised speech. Whilst this is effective for local conversations and quiet environments it is less effective for listening to speech or music at a distance or in front of a security screen at a ticket counter. This is because the hearing aids microphone also picks up any background noise and unwanted speech from other conversations. An induction loop system works by moving the required sound closer to hearing aid via the hearing aids telecoil which is activated by turning it to the “T” or “MT” position.

Telecoils are fitted as standard to most hearing aids so induction loops can be considered cost-effective compared to other hearing assistance systems.

Induction loop systems help hearing impaired people who use a hearing aid or loop listener to hear sounds more clearly by reducing or cutting out background noise.

An induction loop is a cable that circles the listening area. It is fed by current from a loop amplifier. The amplifier gets its signal from a microphone placed in front of the person speaking or by means of a direct connection from another sound source, such as a sound system. The resulting electric current in the loop produces a magnetic field, which corresponds to the sound. You can then pick up this magnetic field if you are sitting within the area of the loop and your hearing aid - or loop listening aid - is switched to 'T'. You will need to adjust your own hearing aid for volume.

More than one person can benefit from a loop installed in a room as long as they each have a hearing aid set to 'T', or a loop listener.

You are not wired to any other equipment and you are therefore free to listen from anywhere within the loop and to move around.

Induction loops are properly termed AFILS which stands for Audio-Frequency Induction Loop Systems.

In the UK the installation of an induction loop system is governed by BS7594.

Induction Loops

For the hard of hearing

Installed and maintained


The East Midlands.

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Eagle Security Systems have been operating in the East Midlands since 1983.

On the Security Side we install and maintain Burglar alarms, Access Control and CCTV (Closed Circuit Television).

We install Fire Alarms we can supply and Service your Fire Extinguishers and Emergency Lights. If you require Fire Risk Assessments we have a fully trained assessor.

For your Electrical work we can send you a qualified approved Electrician.  Who can carry out all your Inspection and testing certification.

We supply and install all types of public address systems including induction loops for the hard of hearing. We can interface your pa system into your cctv or alarm system allow live verbal intervention. We can provide systems interfaced with the Fire Alarm to provide evacuation instructions.

We have our own in house training facilities and can offer training courses for First Aid including First Aid at Work. We can offer basic Health and Safety Training and we can bring our Fire Extinguisher Training Trailer to your premises so your staff can get hands on practice with putting out real Fires.

We supply a range of First Aid Equipment everything from a Plaster to a PAD (Public Access Defibrillator). We are approved suppliers of the CardiAid AED (Automatic External Defibrillator), and are happy to give a free no obligation demonstration to individuals, groups or firms anywhere in the Nottingham and Derby Area.

We operate throughout Derbyshire, Nottinghamshire, Leicestershire and the East Midlands. We cater for homes, businesses, councils, government departments and the police.

We offer a reliable and efficient, quality service.

We can offer Service Contracts where your alarms, extinguishers, emergency lights, PAT testing etc are all covered by one Direct Debit. We even will check your first aid box.

We are approved by NSI Gold, Trusted Trader, ECA (Electrical Contractors Association), Trustmark and the FSA (Fire and Security Association)

We are members of the FPA (Fire Protection Association), NDCC (Nottingham and Derby Chamber of Commerce) and the FSB (Federation of Small Businesses).

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Eagle Security Systems Limited

1 Heanor Road




0115 944 1234


Alarms, Burglar Alarms, Intruder Alarms, Fire Alarms, Extinguishers, CCTV, Access Control, Electric Security Fencing, Safes, Door  Telephones, Public Address Systems , Induction loops