Lone Worker Tracking, Real-Time Safety Monitoring That Meets Your Duty of Care

PETRAN protects your lone workers with SOS, silent duress, man-down detection, timed check-ins, geofencing, and satellite fallback - delivering immutable audit evidence that satisfies your legal duty of care under the Health and Safety at Work Act 1974 and Management of Health and Safety at Work Regulations 1999.

What Is Lone Worker Tracking?

PETRAN Lone Worker Tracking helps organizations protect employees working alone by monitoring their real-time location, detecting emergencies, enabling faster response, and maintaining compliance-ready audit records.

-Real-Time Worker Safety Monitoring: Tracks lone workers using GPS/GNSS for outdoor locations and BLE-based tracking for indoor or site-specific zones.
-Automatic Emergency Detection & Escalation: Supports SOS alerts, man-down detection, fall alerts, prolonged inactivity alerts, missed welfare check-ins, and geofence-based warnings.
-Duty-of-Care Compliance Evidence: Maintains immutable, timestamped audit records to help organizations demonstrate that lone worker safety responsibilities have been managed effectively.

See how it works

124

Workers killed in work-related accidents in Great Britain 2024/25

UK HSE Statistics 2024/25

680K

Workers sustained non-fatal injuries at work 2024/25

UK HSE Statistics 2024/25 (Labour Force Survey)

642K

Workplace violence incidents recorded in England & Wales 2023/24

Crime Survey for England & Wales (CSEW) 2023/24

£22.9bn

Estimated annual cost of workplace injuries and ill health

UK HSE Statistics 2024/25

40.1M

Working days lost to work-related illness and injury in UK 2024/25

UK HSE 2024/25

Construction fatalities 2024/25 - fatal injury rate 4.8× all-industry average

UK HSE 2024/25

$125K+

Cost per hour of unplanned industrial incident

ABB industrial downtime research - before legal/reputational consequences

How PETRAN Protects Lone Workers - 8 Core Capabilities

Instant SOS & Silent Duress

Enables immediate or emergency alerts with live location and response confirmation.

-One-tap SOS with GPS and incident context.
-Silent duress PIN for discreet alerts.
-Timestamped audit trail for every event.

Man-Down Detection

Detects falls or inactivity and auto-escalates when the worker cannot respond.

-Uses mobile sensors to detect fall events.
-Provides a short grace period to confirm safety.
-Triggers SOS if no response is received.

Location & Geofencing

Tracks worker location indoors and outdoors for faster emergency response.

-GPS/GNSS for outdoor tracking.
-BLE for indoor positioning.
-Geofences, no-go zones, and breadcrumb trails.

Check-Ins & Playbooks

Automates welfare checks and escalation workflows.

-Role-based check-in schedules.
-Missed check-in escalation.
-No-code response playbooks.

Resilient Connectivity

Maintains safety coverage even in low-network or remote areas.

-LTE/5G for normal coverage.
-LTE-M, NB-IoT, or satellite for remote areas.
-Offline event storage and sync.

Security & Privacy

Protects worker data with secure, policy-based tracking.

-On-duty tracking only.
-Role-based location access.
-SSO, MDM, encryption, and data retention controls.

Two-Way Communications

Enables fast worker-supervisor communication during incidents.

-In-app chat and auto-dial.
-Predefined emergency responses.
-Incident timeline and webhook integration.

Analytics & Compliance

Provides visibility into safety performance and compliance.

-Device health monitoring.
-Response SLA tracking.
-Dashboards for missed check-ins, false alarms, and coverage gaps.

Hardware, Any Device, Any Environment, One Lone Worker Platform

Mobile Application

A rugged iOS and Android app that turns any smartphone into a lone worker safety device. It supports SOS alerts, man-down detection, check-ins, GPS/geofencing, chat, offline operation, and fast deployment through MDM platforms.

BLE Panic Badges & Beacons

Wearable panic badges allow workers to trigger emergency alerts instantly without unlocking their phones. Fixed BLE beacons also enable indoor location tracking in areas where GPS is unavailable.

RFID / NFC Worker IDs

RFID and NFC cards provide simple tap-based presence verification at gates, checkpoints, plant rooms, or vehicle handover points. Each tap creates a timestamped record for patrols, entry/exit logs, and audit evidence.

Satellite Communicators

Satellite devices provide emergency SOS and location tracking for workers operating outside cellular coverage. PETRAN combines satellite and cellular location data to give supervisors a continuous worker movement trail.

Standards Compliance, Built for the Regulations That Govern Lone Worker Safety

BS 8484:2022 - Provision of Lone Worker Device Services

British Standard defining the requirements for lone worker device services and Alarm Receiving Centre (ARC) integration. PETRAN is designed for alignment with BS 8484 requirements including response time standards, evidence capture requirements, and device capability specifications. Ask Ombrulla about BS 8484-aligned deployment configurations including ARC integration options.

ISO 45001 - Occupational Health & Safety

ISO 45001 Clause 8.1.3 (Elimination of Hazards) requires documented controls for worker activities in remote or isolated environments. PETRAN’s immutable check-in logs, SOS records, and escalation audit trails provide the objective evidence required for ISO 45001 surveillance and certification audits.

Health and Safety at Work Act 1974 / MHSWR 1999

PETRAN directly supports compliance with both the primary duty (HSW Act 1974) and the risk assessment requirement (MHSWR 1999) by providing automated monitoring, emergency response capability, and a timestamped evidence trail demonstrating that the employer has maintained the monitoring arrangements required for lone worker risk mitigation.

ATEX Directive / IECEx

For lone workers in hazardous area classifications (Oil & Gas Zone 1/2, chemical plants), PETRAN supports integration with ATEX/IECEx certified wearable devices. The platform’s device-agnostic architecture means ATEX-certified hardware connects to PETRAN through the unified device ingestion layer without custom development.

RIDDOR 2013

When an incident occurs involving a lone worker, PETRAN’s automatically generated incident record provides the complete timeline, location data, and contextual information required for RIDDOR reporting - reducing investigation time from days to hours and ensuring reporting deadlines are met.

CDM 2015 (Construction)

Under CDM 2015, principal contractors are responsible for the safety of all workers on site, including lone workers and contractors. PETRAN’s CDM 2015 deployment provides worker induction verification, zone access control, lone worker check-in monitoring, and CDM competency evidence for handover documentation.

How PETRAN Compares, Lone Worker App vs GPS Tracker vs Dedicated Device

How PETRAN Compares, Lone Worker App vs GPS Tracker vs Dedicated Device
Capability	Basic GPS Tracker	Dedicated Lone Worker Device	PETRAN Lone Worker Platform
SOS / Panic button	None - GPS trackers do not have emergency alerting	Manual SOS button - basic alert; no covert duress option	One-tap SOS + silent duress PIN · two-way confirmation · satellite fallback
Man-down / fall detection	None - passive location only	IMU-based on dedicated device - single sensor	Sensor fusion (accelerometer + gyroscope + barometer) with adaptive thresholds and confidence scoring
Geofencing & zone control	Basic polygon geofences - entry/exit only	Limited - no dwell timers or nested zones	Polygonal / nested geofences · dwell timers · high-risk zone enforcement · no-go zones
Indoor positioning	None - GPS only	BLE on some dedicated devices	BLE proximity indoors · RFID/NFC checkpoint tap-ins · seamless outdoor/indoor handoff
Satellite connectivity	None - cellular only	Optional on premium dedicated devices	Iridium / Globalstar integration · PETRAN merges satellite + cellular trails seamlessly
Offline / store-and-forward	None - events lost if cellular fails	Limited buffer on dedicated device	Full offline-first: all events cached locally, synchronised on connectivity restore - no event loss
Enterprise CMMS/EHS integration	None - closed platform	None - proprietary cloud dashboard only	IBM Maximo HSE · SAP EHS · ServiceNow · Jira · Teams · Webhooks
Legal audit trail (BS 8484/ISO 45001)	Basic location log only	Check-in logs · SOS records	Immutable timestamped trail: location + check-ins + SOS + duress + escalation actions + comms
Gas monitoring convergence	None	None - separate standalone device	PETRAN platform: lone worker safety + gas exposure monitoring unified in same dashboard
Agentic AI workflow automation	None	None	PETRAN agentic AI: missed check-in → auto-escalation → CMMS work order → response crew dispatch - automated

Industry Applications

Ombrulla's AI mobile inspection platform is deployed across six primary industry verticals. Each application area aligns to specific regulatory frameworks, use cases, and AI detection categories most relevant to senior executives in those sectors.

AI inspection in oil and gas to detect pipeline corrosion, leaks, dents, and monitor flare stack stability for safer operations.

Oil & Gas

PETRAN protects lone workers in hazardous and remote oil & gas environments with real-time tracking, emergency alerts, gas-monitoring integration, permit-to-work validation, and satellite fallback connectivity.

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Construction

PETRAN helps construction companies monitor lone workers across dynamic sites with check-ins, man-down alerts, geofencing, patrol evidence, and CDM-aligned safety records.

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Maritime

PETRAN enables reliable lone worker safety in vessels, dockyards, and below-deck areas using BLE indoor positioning, SOS alerts, muster verification, and satellite or LTE-M connectivity.

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Utilities

PETRAN supports field crews working alone across substations, power lines, water sites, and customer premises with offline-first tracking, geofenced access, silent duress, and storm-mode escalation.

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Lone Worker Tracking 8-Step Implementation on PETRAN

Assessment & Risk Classification
- Identify all lone worker roles, locations, shifts, hazards, and escalation requirements to create a documented risk profile before PETRAN deployment.
- This phase ensures the solution is designed around real operational risks, site-specific hazards, and compliance obligations rather than a generic safety workflow.
-Map all lone worker roles, working hours, site zones, and operating conditions.
-Classify each role into standard, elevated, or high-risk categories based on exposure and emergency response needs.
-Document escalation contacts, risk controls, and compliance requirements as part of the formal lone worker risk assessment.
Duty-of-Care Framework
- Define the lone worker safety policy and create clear escalation playbooks that PETRAN will automatically execute during emergencies.
- This phase converts the organization’s duty-of-care responsibilities into measurable rules, response timelines, and automated escalation actions.
-Define check-in intervals, grace periods, response SLAs, and escalation rules for each risk level.
-Create step-by-step emergency response playbooks for SOS, missed check-ins, man-down, and duress alerts.
-Align PETRAN workflows with the customer’s existing emergency response and HSE procedures.
Device & Coverage Planning
- Select the right combination of mobile apps, BLE badges, RFID/NFC checkpoints, wearables, and satellite devices based on worker roles and site conditions.
- This phase ensures every worker has the most suitable tracking, alerting, and communication method for their environment, risk level, and connectivity limitations.
-Assess connectivity, indoor/outdoor movement, hazardous zones, and worker mobility requirements.
-Recommend the appropriate device mix for each worker group and environment.
-Identify ATEX-certified or rugged hardware requirements for oil & gas, chemical, remote, or harsh environments.
Platform Configuration
- Configure PETRAN according to the approved risk profile, safety policy, site layout, worker roles, and compliance requirements.
- This phase transforms the agreed safety design into a working system with geofences, alerts, check-ins, escalation rules, privacy controls, and reporting settings.
-Create geofences for high-risk zones, no-go areas, attendance zones, and restricted locations.
-Configure check-in schedules, man-down thresholds, alert rules, roster groups, and escalation workflows.
-Set privacy controls, on-duty tracking windows, role-based access, and data retention policies.
Validation & Training
- Run a controlled pilot with selected workers, supervisors, and site teams to validate the solution before full-scale rollout.
- This phase verifies that PETRAN performs reliably in real working conditions and that users clearly understand how to respond during emergency scenarios.
-Deploy PETRAN for one site, one shift, or one worker group to test real-world performance.
-Conduct emergency drills for SOS, missed check-in, man-down, duress, and escalation scenarios.
-Train workers, supervisors, and safety teams on app usage, dashboard monitoring, and response protocols.
Enterprise Integration
- Connect PETRAN with enterprise systems to enable seamless incident management, workforce synchronization, and operational visibility.
- This phase reduces manual effort by ensuring safety alerts, worker data, incident records, and response communications flow across existing business systems.
-Integrate with CMMS/EAM systems such as IBM Maximo or SAP for incident-triggered work orders.
-Connect with EHS, HRIS, MDM, and communication platforms for incident records, worker identity, app deployment, and alerts.
-Validate data flow, notification channels, and escalation workflows across integrated systems.
Deployment & Governance
- Expand PETRAN across multiple sites, teams, and regions using standardized templates and governance controls.
- This phase ensures consistent lone worker safety practices across the organization while still allowing site-level flexibility where required.
-Roll out the approved configuration templates from the pilot to additional sites and worker groups.
-Implement role-based access control for site managers, regional managers, HSE teams, and leadership.
-Establish governance reviews for SLA performance, false alarms, policy changes, and compliance reporting.
Continuous Optimisation
- Use PETRAN analytics and field data to continuously improve worker safety, response efficiency, and compliance performance.
- This phase helps organizations move from basic monitoring to proactive risk reduction by identifying patterns, gaps, and improvement opportunities.
-Analyze missed check-ins, false alarms, delayed escalations, and high-risk activity patterns.
-Identify coverage gaps, threshold issues, training gaps, and playbook improvement opportunities.
-Refine policies, device settings, escalation rules, and site configurations based on operational data.

Assessment & Risk Classification

Identify all lone worker roles, locations, shifts, hazards, and escalation requirements to create a documented risk profile before PETRAN deployment.
This phase ensures the solution is designed around real operational risks, site-specific hazards, and compliance obligations rather than a generic safety workflow.

- -Map all lone worker roles, working hours, site zones, and operating conditions.
- -Classify each role into standard, elevated, or high-risk categories based on exposure and emergency response needs.
- -Document escalation contacts, risk controls, and compliance requirements as part of the formal lone worker risk assessment.

Frequently Asked Questions

What is a lone worker tracking app?

A lone worker tracking app is a worker safety application that uses real-time location monitoring, automated emergency detection, and structured welfare check-ins to protect employees who work without direct supervision - and to provide employers with the documented evidence they need to demonstrate legal duty-of-care compliance. Under UK law (HSW Act 1974 and MHSWR 1999), employers must manage the risks to lone workers, which requires monitoring systems that include regular contact at pre-agreed intervals and a means for the worker to signal for help. A lone worker tracking app discharges these duties through GPS location, SOS/panic, man-down detection, timed check-ins with auto-escalation, and immutable audit trails. PETRAN is Ombrulla’s industrial-grade lone worker tracking platform, deployed across Oil & Gas, Construction, Maritime, Utilities, Manufacturing, and Facilities Management.

How does a lone worker safety app improve worker protection?

A lone worker safety app improves worker protection through three mechanisms: faster emergency detection, faster response, and better evidence. Detection includes SOS, silent duress, man-down detection, and missed check-in escalation. Response transmits GPS location, battery level, and context via redundant channels with acknowledgement. Evidence logs every event in an immutable audit trail for compliance and investigation.

What features should I look for in a lone worker app?

Key features include SOS and silent duress, sensor-based man-down detection, timed check-ins with escalation, live GPS tracking with geofencing, offline capability, satellite fallback, audit trails aligned to ISO 45001, enterprise integrations, privacy controls, and no-code workflow configuration.

Does the lone worker tracking app work offline or in low signal?

Yes. PETRAN uses an offline-first design that stores events locally and syncs when connectivity returns. LTE-M and NB-IoT support low-signal environments, while satellite fallback enables coverage in remote or offshore locations.

How does SOS and silent duress work in a lone worker app?

SOS is triggered via app or wearable and sends GPS, battery, and context to responders through redundant networks with acknowledgement. Silent duress uses a covert PIN to trigger alerts without visible indication, ensuring safety in confrontational situations.

Can the app detect falls or inactivity (man-down)?

Yes. PETRAN uses sensor fusion (accelerometer, gyroscope, barometer) to detect falls with high accuracy. After detection, a grace period allows user confirmation before auto-escalation. Inactivity monitoring also triggers alerts if movement stops beyond a defined threshold.

What is geofencing in a worker safety app?

Geofencing creates virtual boundaries that trigger alerts when workers enter, exit, or dwell in zones. It enables restricted area control, time-in-zone tracking, and proactive risk mitigation in hazardous environments.

How is worker privacy handled in lone worker tracking?

PETRAN ensures privacy through on-duty tracking only, role-based access control, configurable data retention, worker transparency, and regional data residency to comply with GDPR requirements.

Which devices and hardware are supported?

Supported devices include iOS/Android smartphones, BLE panic badges, RFID/NFC checkpoints, and satellite communicators. PETRAN unifies all device data into a single dashboard.

Can we integrate the lone worker tracking app with our systems?

Yes. PETRAN integrates with CMMS/EAM, EHS platforms, HRIS, MDM, and messaging tools using APIs and webhooks, enabling automated workflows and synchronized data across systems.

How does the system reduce false alarms?

False alarms are reduced through adaptive thresholds, grace periods, confirmation prompts, and analytics-driven tuning, ensuring accuracy without compromising response speed.

Will lone worker tracking drain battery on worker phones?

No. PETRAN uses adaptive GPS sampling and smart data sync to minimize battery usage, typically consuming only 5–10% per shift.

What industries benefit most from a lone worker safety app?

Industries include Oil & Gas, Construction, Maritime, Utilities, Manufacturing, Facilities Management, Healthcare, Logistics, Mining, and Agriculture-where lone worker risk is highest.

How fast can we deploy a lone worker app?

A pilot can go live in 1–3 days for mobile-only setups. Full enterprise rollout typically takes 4–12 weeks depending on scale and hardware requirements.

Is the solution compliant and audit-ready?

Yes. PETRAN provides a complete audit trail of all safety events, meeting requirements for HSW Act, MHSWR, RIDDOR, and ISO 45001 compliance.

How is lone worker tracking data secured?

Security includes TLS encryption, AES-256 storage, SSO integration, MDM enforcement, MFA access, and regional data residency to meet enterprise and regulatory standards.

Can supervisors communicate with lone workers through the app?

Yes. PETRAN supports chat, auto-dial calls, and templated responses, all logged within the incident timeline for full traceability.

What is the difference between a worker safety app and a GPS tracker?

A GPS tracker only shows location. A worker safety app adds SOS, man-down detection, check-ins, communication, and audit trails-providing complete duty-of-care compliance.

What is a lone worker tracking app?

How does a lone worker safety app improve worker protection?

What features should I look for in a lone worker app?

Does the lone worker tracking app work offline or in low signal?

How does SOS and silent duress work in a lone worker app?

Can the app detect falls or inactivity (man-down)?

What is geofencing in a worker safety app?

How is worker privacy handled in lone worker tracking?

PETRAN ensures privacy through on-duty tracking only, role-based access control, configurable data retention, worker transparency, and regional data residency to comply with GDPR requirements.

Which devices and hardware are supported?

Supported devices include iOS/Android smartphones, BLE panic badges, RFID/NFC checkpoints, and satellite communicators. PETRAN unifies all device data into a single dashboard.

Can we integrate the lone worker tracking app with our systems?

Yes. PETRAN integrates with CMMS/EAM, EHS platforms, HRIS, MDM, and messaging tools using APIs and webhooks, enabling automated workflows and synchronized data across systems.

How does the system reduce false alarms?

False alarms are reduced through adaptive thresholds, grace periods, confirmation prompts, and analytics-driven tuning, ensuring accuracy without compromising response speed.

Will lone worker tracking drain battery on worker phones?

No. PETRAN uses adaptive GPS sampling and smart data sync to minimize battery usage, typically consuming only 5–10% per shift.

What industries benefit most from a lone worker safety app?

Industries include Oil & Gas, Construction, Maritime, Utilities, Manufacturing, Facilities Management, Healthcare, Logistics, Mining, and Agriculture-where lone worker risk is highest.

How fast can we deploy a lone worker app?

A pilot can go live in 1–3 days for mobile-only setups. Full enterprise rollout typically takes 4–12 weeks depending on scale and hardware requirements.

Is the solution compliant and audit-ready?

Yes. PETRAN provides a complete audit trail of all safety events, meeting requirements for HSW Act, MHSWR, RIDDOR, and ISO 45001 compliance.

How is lone worker tracking data secured?

Security includes TLS encryption, AES-256 storage, SSO integration, MDM enforcement, MFA access, and regional data residency to meet enterprise and regulatory standards.

Can supervisors communicate with lone workers through the app?

Yes. PETRAN supports chat, auto-dial calls, and templated responses, all logged within the incident timeline for full traceability.

What is the difference between a worker safety app and a GPS tracker?

A GPS tracker only shows location. A worker safety app adds SOS, man-down detection, check-ins, communication, and audit trails-providing complete duty-of-care compliance.