First2Help You Lone Worker Jargon Buster

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First2Help You Lone Worker Jargon Buster

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Our handy lone worker jargon buster will give you all the definitions you need to know when discussing lone worker devices.

There is no doubt that lone worker devices and apps are a fantastic thing. They help to keep you safe when you are working and allow you to quickly and securely raise an alarm if you are taken ill, injure yourself, or are attacked.

But they do come with an awful lot of jargon and language that can be quite hard to decipher at times.

Well fear not! We have listed the most common terms you will come across and what they actually mean.

The First2HelpYou Lone Worker Jargon Buster

Amber Alert

Setting an Amber Alert is a bit like leaving a voicemail. It logs a message with the Alarm Receiving Centre so you can say what task you are about to start doing. You can also set a countdown clock running, so if you don’t check in as safe and well by then it will trigger a red alert.

Think of an Amber Alert as saying ‘I am about to start lone working, be ready in case I set off an alert’


ARC stands for Alarm Receiving Centre. This is where we receive all the alerts triggered by the devices. It is staffed by expert call handlers who can listen in to the device if it is triggered and, if necessary, summon the emergency services.


This is the code of practice to which our Alarm Receiving Centre adheres. It means that we need to be certain that in power cuts, floods, or attack, out ARC can still function and receive alerts. It also means we thoroughly and regularly train all our staff.


This is the industry standard that governs all our activities, including the Alarm Receiving Centre. From the functionality of the device, to the way we vet staff, and even the training we provide, we have to adhere to BS8484 guidelines.

We are audited by the NSI every six months to make sure we are compliant.


The British Security Industry Association is a governing body for the security industry, of which the one worker sector is a branch.

First2HelpYou joined in 2018. The organisation helps to govern and guide legislation around lone worker safety.


This is the process of setting up lone worker devices and rolling them out. This can be quite involved, as everybody get their own individualised device with their personal details assigned to it, so we know who is activating the device and if they have any conditions.


The KIT device stands for Keep In Touch. First2HelpYou totally redeveloped the firmware of this hand-held device; there isn’t anything else like it on the market.

First2HelpYou KIT device with logo for lone worker safety

Lone Worker Device

The bit of hardware that lets you send alarms, set Amber Alerts, and activate Man Down in an emergency.

Lone Worker Policy

When implementing a lone worker service, it helps to write a lone worker policy to tell staff how they are expected to use the device and the consequences for not doing. It just makes sure there is maximum take up once the devices are rolled out.

Lone Worker Risk Assessment

A lone worker risk assessment is a health and safety requirement. If you have lone workers you should be conducting a lone worker risk assessment, which is like a normal risk assessment, but looks at the hazards and risks specifically associated with lone working.

Lone Worker Unit

Another name for a lone worker device

Man Down

Man Down is a type of alert you can get on your lone worker device or app. If your device or android app is in Amber Alert mode and it detects a sudden fall, or your device is stationary for a period of time, the app or device will go into red alert. This is an important function that can save your life if you are injured or taken ill and cannot raise a red alert by yourself, for example, if you faint or have a heart attack.

Monitoring Station

Another name for the Alarm Receiving Centre


This stands for National Police Chief’s Council. They are an advisory body of police chiefs, both active and retired, who advise the lone worker sector, amongst others, on reducing violent crime. They used to be called ACPO (Association of Chief Police Officers).


This stands for National Security Inspectorate. They are one of the auditing bodies of various British Standards, including BS8484 and BS5979.

First2HelpYou are accredited by the NSI.

Red Alert

A Red Alert is a call for help. If a red alert is triggered by the device or app it sends a phone call to the Alarm Receiving Centre, who can listen in and talk to the user. It also sends the GPS location of the device and provides the ARC operator with access to any Amber Alert message that might have been left.


URN stands for Unique Reference Number. This is a code that the police have given us for each geographical area. If the police are needed to respond to a Red Alert, we can quote the URN which tells the police that we have verified there is a genuine emergency and guarantees a level 1 police response.

If you come across any other phrases or words of jargon just get in touch to tell us and we will include it on this lone worker jargon buster. Have a look at our FAQs for more answers.

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