Lone Worker Alarms

Lone Worker Alarm Solution: WorkerSentry

Lone Worker Alarm

With over 30 years’ experience, we are proud to supply cost-effective, robust lone worker alarm solutions across the UK to large and small companies.

Our trusted Man Down alarm systems have been installed in warehouses, shopping centres, sports complexes and offices to protect lone working employees across England, Scotland, Wales and Northern Ireland

All-in-one, flexible Lone Working Alarm Solution includes:

  • Scalable lone worker solution includes a panic button (SOS), man down and reminder features
  • No SIM card or internet connection required
  • Robust, discrete pocket pager or wearable SOS fob/pendant with vibrate and/or bleep function
  • Easy-to-use with text message ID
  • No contract required or ongoing payments required
  • Multiple contact method available (telephone, pager or SMS)
  • Additional options to customise to your requirements include repeaters to extend the range of the system and remote siren strobes, designed to add a visual and audio warning to remote areas of the building.

Check out our lone working alarm equipment FAQs

The Lone Worker Protection System…

Our popular WorkerSentry system automatically or manually summons assistance as required in lone worker emergency situations.

It is designed to help protect your lone workers by providing a quick, easy-to-use means of raising an alarm within an organisation. This simple, robust system uses lone worker alarm transmitters, which when activated, send an alarm signal to a central receiver which is wall mounted.

The handy lone worker alarm transmitter can be carried in a pocket or worn in the carrying pouch (supplied). Ergonomic buttons enable the lone worker to easily call for help or the built-in fall detection which automatically triggers an alarm if the lone worker collapses or is injured.

Once the alarm is activated, it’s picked up by the wall-mounted central receiver (which has a number of indicators, a sounder and a reset button). Each transmitter has a different channel to identify which device’s alarm is sounding.  The alarm is cancelled when the reset button on the central receiver is pressed.

There are 2 other options available for raising the alarm onto designated remote third parties:

  1. If there isn’t anybody to pick up the alarm on-site we can connect an auto-dialler to the central receiver, via the outputs at the bottom of the panel. This then dials out to a list of pre-programmed phone numbers, with a pre-recorded message requesting assistance. FYI we can either integrate analogue or GSM diallers into the system. If we can locate the dialler near an ordinary analogue phone line (e.g. a fax line or domestic phone line), this will then ring out on the landline number of the premises. However, if there is no analogue line we can access, we can use the GSM dialler that runs off a sim card.
  2. Alternatively, if you would like to pick up the alarm remotely around the premises, we can have a paging module installed on the central panel. So, once an alarm has been triggered the panel will go into alarm as usual, however, it will then broadcast out another radio signal that will be received by a remote pager. This will then show a displayed message of the device/area that has been activated, via audio and vibrate function. This is good for members of staff being able to pick up the alarm wherever they are around the premises and to be instantly aware of the emergency.


Talk to us, the lone working protection solution experts, on 01280 845530 or via our contact form, and find out how we can help you to meet your Health and Safety obligations for your workforce.


Lone Working System Technical Details

Worker Sentry Lone Working Alarm System UK

A. Wall Transmitter

IP Rated.  When the button is pressed a signal is transmitted back to the central receiver.  The unit is battery powered: typical battery life is 3 – 5 years.  Ideal for locations where different people may be present, but who may need to summon assistance.

B. Lone Worker Alarm Transmitter

It can be carried in a pocket or worn in the carrying pouch (supplied).  It features panic buttons, which allow the lone worker to call for help, and it also features a tilt switch, which automatically triggers the alarm should the lone worker collapse or be injured.  The unit is battery powered; typical battery life is 3 – 5 years.

C. Pendant Transmitter

Again this unit is portable and waterproof.  This unit will raise the panic alarm when the single button is pressed.  Battery life is typically 3 – 5 years.

D. Pocket Pager

Worn by a member of staff to receive the panic alarm messages from the central receiver.  They feature an alphanumeric display with the audio or vibrate alert function

E. Central Receiver

The unit may be a four or eight-channel device.  This means it is capable of supporting a large number of different transmitters (Units A – D).  The unit also features an internal buzzer and can display which devices have been activated.  It can also support local onsite paging.

The central receiver can also support other equipment:

A siren/strobe can be connected to the system which is ideal for raising the alarm in a noisy environment.

An Autodialler is available for the system.  This device will dial a list of pre-programmed numbers alerting the users of a problem via a pre-recorded voice message.

Signal Repeaters – In large buildings there may be an area where signal penetration is poor.  The addition of a signal repeater can ensure we achieve 100% site coverage.


All equipment conforms to the UK licensing requirements & CE regulations.

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