What These Systems Cannot Do

Lone worker technology is genuinely useful within a narrow band. Outside it, the belief that it helps is itself the hazard.

When what these systems cannot do also depends on reliable work records, work-hour reporting tools can support time, attendance and workload review without being treated as the emergency response itself. Compare any workflow with HSE lone-working guidance and keep alarm ownership, escalation and dispatch responsibilities explicit.

It cannot prevent anything

Every device in this category acts after something has happened.

Which means for hazards where the harm is immediate and severe — a fall from height, a confined space, contact with machinery — it is not a control.

The control there is not working alone.

It cannot make an unsafe task safe

A device does not change the task, the environment or the staffing.

An assessment that concludes "safe because the worker has a device" has not assessed anything, and that sentence appears in enforcement findings.

It cannot see indoors

Position is worst exactly where the serious incidents happen: basements, stairwells, plant rooms, inside houses.

Which is why the schedule matters more than the tracker, and why an address record beats a coordinate.

It cannot detect every incapacity

Fall detection finds impacts.

A slow collapse, a stroke, a gradual loss of consciousness produce no impact and may produce no stillness for some time.

No-movement alarms help and produce false alarms.

Treat detection as a layer, never as coverage.

It cannot respond

The device raises an alert. People respond.

An organisation with excellent devices and an untested escalation tree has bought the first link of a chain that ends nowhere.

It cannot fix a staffing decision

Two-worker visits, adequate rotas and realistic schedules cost money.

A device costs less and is frequently purchased instead, which is the substitution this collection keeps returning to.

What it can do

Shorten the time between something happening and somebody knowing.

Provide a location and a context for a response.

Give a worker a way to summon help discreetly.

Create a record of what happened and when.

Four things, done well, and worth having — and claiming more is what makes an organisation stop doing the harder work that actually reduces the risk.

Why the overclaim is dangerous rather than merely inaccurate

An organisation that believes the risk is covered stops looking at it.

The assessment is not reviewed, the staffing question is not asked, and the task that should not be done alone continues — because a control is recorded against it.

Which makes a system believed to do more than it does worse than no system, since the absence of one at least leaves the risk visible.

This is the specific harm, and it is why this note exists rather than being a paragraph elsewhere.

Where the belief comes from

Supplier language: "man down protection", "complete lone worker safety", "peace of mind".

The device's physical presence, which feels like a control in a way a written arrangement does not.

And the reasonable wish of everybody involved for the problem to be solved, which is the strongest of the three.

How to keep the claim honest internally

Write what the system does in the assessment, in the four terms above — shorten the time to awareness, provide location and context, allow a discreet summons, create a record.

And write what it does not do next to it.

So that anybody reading the assessment later cannot conclude the risk was controlled by the purchase.

That paragraph is the difference between a defensible document and one that reads badly in an investigation.

Testing the belief

Ask a manager what would happen if a worker fell in a plant room with no signal.

If the answer references the device, the belief is present.

The correct answer is about the check-in interval, the schedule, and how long before somebody noticed — none of which involves the device at all.

The four things restated

A shorter interval between the event and somebody knowing.

A location and context for whoever responds.

A way to summon help without showing it.

And a record of what happened and when.

Everything else in the marketing is either one of these described differently, or something the system does not do.

The substitution, one more time

A device costs a few pounds a month. A second worker costs a wage.

Both appear as controls in an assessment, and only one of them is present when the hazard occurs.

Which is why the hierarchy of controls puts equipment last — not as a preference, but because the earlier steps remove the hazard and the last one responds to it.

An organisation that has genuinely worked down the hierarchy and arrived at a device has made a defensible decision. One that started there has made a purchase.

What to say to a supplier

Ask what their system does when the worker cannot press anything and there is no signal.

The honest answer is a missed check-in, noticed by whoever is watching, after an interval you set.

Which is a good answer, and it is about your arrangement rather than their product.

A supplier who gives it is describing the system accurately; one who describes their detection instead has told you how they will be read by an assessor.