Independent workers
Plan where you will be, when you will check in, and what should happen if you cannot respond.

On-device product preview
Plan the work, agree when contact is expected, record optional location evidence, and make a missed check-in visible on the worker’s device.
Lone-working essentials
Lone working generally means working without close or direct supervision, or spending time where another person cannot readily see, hear, or assist you. It is not automatically unsafe, but the task, location, people involved, and consequences of an emergency must be considered together.
Plan where you will be, when you will check in, and what should happen if you cannot respond.
Assess the risk, decide the supervision and contact arrangements, and make sure someone can act on a missed check-in.
Fit check-ins into training, permits, communication, emergency response, incident review, and the wider safety system.
Electrical energy, machinery, work at height, confined or remote areas, driving, and manual work still need their normal controls.
An injury, illness, fall, or loss of communication may be harder to detect when nobody is nearby.
Poor signal, severe weather, unfamiliar sites, fatigue, stress, violence, and changing conditions can alter the risk.
General guidance informed by the UK HSE’s lone-working overview and the Canadian Centre for Occupational Health and Safety’s working-alone guidance.
A useful check-in plan
A timer is useful only when it sits inside an agreed procedure. The interval should reflect the task risk, and the person expected to respond must know what to do.
Record the worker, site, exact area, task, expected duration, hazards, and responsible contact.
Confirm safety at the agreed interval. Higher-risk or changing work may need closer supervision or a different control.
A site name, work area, access point, route, and fresh GPS fix can help a responder know where to look. GPS accuracy varies and may fail indoors.
Allow the agreed grace period, try the worker through approved channels, then follow the workplace emergency plan. Do not assume silence proves an emergency—or that it is harmless.
Who is working, where they are, what they are doing, when they should finish, the check-in schedule, how to reach them, the backup contact, and the exact trigger for escalating. A personal contact should not be given responsibilities they have not accepted or been prepared to carry out.
Where check-ins can support the plan
The task and risk assessment decide whether lone work is suitable. These examples show where an agreed check-in can add a useful record.
Inspection, testing and planned work in substations, plant rooms and remote cabinets.
Roof plant, mechanical rooms and scheduled equipment servicing.
Isolated areas, early or late shifts, snagging and site inspections.
Pump stations, treatment assets, meter locations and distributed infrastructure.
Call-outs, vacant properties, service corridors and plant inspections.
Scheduled rounds across large, quiet or remote premises.
Environmental, engineering and property checks away from close supervision.
Remote cabinets, towers and distributed network sites.
Yards, cold stores, remote bays and out-of-hours operations.
Fences, pumps, machinery checks and work across large properties.
Practical pre-work checklist
This list is general guidance. Adapt it to the task, site rules, risk assessment, and emergency arrangements.
Assess the task and decide whether it is suitable for lone work.
Tell a responsible contact the site, exact work area, task, and expected finish time.
Agree the check-in interval, grace period, and what a missed check-in means.
Confirm who will respond, who is the backup, and when emergency procedures begin.
Check battery level, mobile or radio coverage, GPS permission, and an alternative communication method.
Confirm access, exit, first-aid, isolation, permit, PPE, and site-specific emergency arrangements.
Make sure the emergency contact understands the plan and has useful location information.
Stop and reassess if conditions, task scope, health, or communications change.
Shared responsibilities
Responsibilities differ by jurisdiction and employment arrangement. In general, organizations should assess and control risk, consult workers, provide suitable training and supervision, and establish workable emergency procedures. Workers should follow the agreed system, use equipment correctly, report hazards or failures, and stop or seek advice when conditions change.
For management-system context, see ISO 45001’s official overview. SafeSignal does not claim ISO certification or compliance.
Product and safety boundaries
A browser check-in can support a procedure. It cannot make an unsuitable lone task safe or guarantee that help will arrive.
Start with enough battery for the task. Charging, cold, heat, weak signal, and GPS use can change battery life.
Confirm coverage and a backup method. A loaded page can keep local time, but a closed browser is not remote monitoring.
Test location before work. Indoor or obstructed fixes may be inaccurate, delayed, denied, or unavailable.
Operating systems can suspend background tabs and suppress sound, vibration, or notifications. Reopen the page to review the saved deadline.
Worker, site, task, contact, notes, timestamps, and optional coordinates remain in this browser. Clear data before leaving a shared device.
Do not rely on SafeSignal alone where lone work is prohibited, rapid rescue is essential, communications are unreliable, or the risk assessment requires supervised or specialist controls.
A check-in tool records an expected response and makes a missed confirmation visible. Emergency dispatch requires a monitored receiver, verified alarm delivery, trained decision-makers, current location information, escalation authority, and a tested route to responders. SafeSignal provides the first function on the local device; it does not provide the second.
Frequently asked questions
No. SafeSignal does not call emergency services. Use the approved workplace or local emergency procedure if help is needed.
No. The contact is stored with the session and shown during an overdue state, but this build sends no SMS, call, email, or push message.
Yes. You can start and complete a session without location. Check-ins are recorded with location marked unavailable. A response plan may still require another reliable way to identify your work area.
Once the page is loaded, the timer and local records use browser storage and do not depend on a server connection. Reloading the site, downloading new code, or using external services may require connectivity.
The active session and deadline remain in local browser storage and can be restored when you reopen the same browser and site. While the browser is closed, SafeSignal cannot guarantee sound, vibration, notifications, or monitoring.
On this device in this browser’s local storage. Records can include worker, site, task, emergency-contact details, timestamps, safety notes, and optional GPS coordinates. They are not currently uploaded by SafeSignal.
No. SafeSignal does not provide continuous tracking. It requests a location when you test GPS or make a check-in. The supervisor dashboard uses labelled sample workers, not live employee locations.
The device enters a grace period, then an overdue state if you do not respond. It may provide a local sound, vibration, or browser notification when supported and permitted. No remote person is notified.
Yes. Completed sessions can be downloaded as a plain-text record, and the check-in completion screen can copy the report.
No. It does not replace risk assessment, supervision, permits, training, communication equipment, rescue arrangements, emergency procedures, or controls required by an employer or regulator.
No. Team workers and incidents are sample data. Real sessions completed on the current device appear separately as local records.
The interface is designed for current mobile and desktop browsers. Actual GPS, notification, vibration, storage, background behavior, and battery use vary by device, browser, operating system, and permission settings.
Official guidance
These sources provide general occupational-safety context. They do not determine the law or required controls in every country, industry, or workplace.
SafeSignal provides a browser-based planning and check-in aid. It is not professional safety advice, a rescue service, an emergency communication system, or evidence that a task is safe to perform alone. Organizations and workers remain responsible for applicable laws, risk assessment, competent supervision, training, permits, communication, rescue, and emergency arrangements. If there is immediate danger, follow the approved emergency procedure and contact the appropriate local emergency service.
Use the current product
Test the local worker flow, or review the explicitly labelled sample supervisor dashboard.