Picture a utility worker finishing an inspection in a remote facility at the end of a night shift — the kind of job that gets done alone because it’s straightforward, familiar, and doesn’t seem to warrant a second person on site, until something goes wrong.
If a gas leak develops, the worker slips, or a sudden medical event occurs, they may be incapacitated before they can call for help. With no one else on site, nobody can notice, respond, or determine how long it takes to discover the issue.
Lone worker safety technology addresses this risk. While it cannot eliminate the hazards of working alone, it sends an alert immediately and automatically if an incident occurs, without relying on the worker to initiate it.
What Is a Lone Worker Monitor?
A lone worker monitor is a wearable or portable device that tracks a worker’s safety in real time and automatically triggers an alert if an incident occurs, without requiring the worker to request assistance.
This feature distinguishes a dedicated lone worker monitor from a check-in app or a mobile phone. Phone-based systems require the worker to be conscious and able to act, while a lone worker monitor does not. If a worker falls and cannot get up, the device detects it automatically. If gas levels rise and the worker is incapacitated, the device keeps transmitting. The alert is sent regardless of the worker’s ability to respond.
This distinction is critical in high-hazard environments, where incidents such as gas exposure, falls, or sudden medical events are likely and can prevent a worker from calling for help.
Why Lone Worker Safety Technology Matters
In industrial safety, a lone worker is anyone who is isolated by location, time of day, or task, such that no one is immediately available to notice or respond to an incident.
Lone workers are present in nearly every industrial sector, including utility field technicians, oil and gas operators, water and wastewater facility workers, overnight security personnel, mining crews separated from the main team, transportation and logistics drivers, and manufacturing maintenance staff on off-hours shifts.
The primary risk is clear: if an incident occurs and no one is present to respond, the delay in assistance can worsen the outcome.
In Canada, most provincial occupational health and safety legislation includes general duty provisions that require employers to protect workers from workplace hazards, including the hazard of working alone or in isolation. Several provinces, including British Columbia, Alberta, and Ontario, have specific lone worker or working alone provisions that require employers to establish check-in procedures or monitoring systems for workers in these conditions. Requirements vary by province, so verify them against current legislation in your jurisdiction.
How Blackline Monitors Work
Blackline Safety develops connected safety devices that integrate gas detection with lone worker monitoring. Concept Controls has offered the G6, G7, and EXO 8 for years as part of our gas detection and connected systems portfolio. Below is an overview of each device and its intended use.
Blackline G6: Single-Gas, Cloud-Connected
The G6 is a compact, wearable single-gas detector with integrated lone worker monitoring. It tracks one gas (CO, H₂S, O₂, or SO₂), automatically detects falls and no-motion events, features an SOS button for manual alerts, and connects to Blackline Live through LTE-M and NB-IoT networks.
The G6 is ideal for environments where a single gas is the primary hazard and lone worker monitoring is required. Its lightweight, clip-on design and battery life of up to 12 months, depending on configuration and service plan, make it a low-maintenance solution for organizations with many workers.
Blackline G7: Multi-Gas Detection and Full Lone Worker Monitoring
The G7 is the most versatile device in the Blackline lineup. It combines multi-gas detection, monitoring up to four gases simultaneously with a swappable cartridge, and comprehensive lone worker monitoring features.
Core capabilities include:
- Automatic fall detection and no-motion alerts
- Manual SOS with two-way voice communication
- Real-time GPS location tracking
- Cellular connectivity (2G/3G/4G LTE) with optional satellite via the G7 Bridge for remote areas beyond cellular coverage
- Real-time data streaming to Blackline Live, with alerts delivered to safety coordinators and optional 24/7 live monitoring
For workers exposed to gas hazards and working alone or in isolation, the G7 consolidates both functions into a single device. It is especially well-suited for oil and gas, utilities, confined-space programs, and remote field operations.
Blackline EXO 8: Portable Area Monitor
The EXO 8 is a portable area monitor designed for deployment at specific locations, such as confined-space entry points, perimeter zones, temporary worksites, or fencelines, rather than for individual use.
It monitors up to eight gases simultaneously with a swappable cartridge system and optional gas expansion module, and can also detect gamma radiation. The battery lasts up to 100 days, and it connects to Blackline Live via 4G LTE, with an optional satellite module for remote locations.
The EXO 8 is not a personal monitor and does not replace the G6 or G7 for individual protection. It provides area-level coverage, monitoring zones for early warning of gas events or radiation changes. For safety programs that require both personal and site-level monitoring, the G7 and EXO 8 integrate via Blackline Live, providing safety coordinators with a unified dashboard for worker status and atmospheric conditions.
Choosing the Right Device for Your Team
Selecting the right device depends on your operation’s hazards, environment, and coverage needs. Consider the following questions to guide your decision:
What is the main risk: gas exposure, physical hazards such as falls or no-motion, or both?
Both quantitative and qualitative fit testing methods are accepted under OSHA’s Respiratory Protection Standard, but they differ significantly in accuracy, application, and reliability.
Does the work happen outside cellular coverage?
Standard cellular connectivity is sufficient for most urban and industrial areas. For remote operations, pipeline inspections, or work in isolated locations, the G7 with optional satellite connectivity ensures coverage beyond cellular networks. Evaluate this need before selecting a device, especially for oil, gas, and utility field work.
Do you need coverage per worker, per site, or both?
Personal monitors (G6, G7) protect individual workers, while area monitors (EXO 8) provide continuous coverage for specific zones. For example, a confined space entry program may assign a G7 to each entrant and place an EXO 8 at the entry point for atmospheric monitoring. Most safety programs benefit from using both types of monitors.
How many workers need coverage?
For large fleets, administrative efficiency is as important as device selection. The G7 Dock automates bump testing and calibration for multiple devices, logging records directly to Blackline Live. This automation significantly reduces compliance efforts for organizations managing many devices across multiple crews.
Buy, Rent, or Service? How to Get Started
Lone worker monitors do not require a significant upfront investment. Concept Controls provides multiple options tailored to your organization’s needs:
- Purchase: For organizations developing a long-term connected safety program, buying devices with a Blackline service plan is the most cost-effective solution. The service plan enables connectivity, monitoring, and Blackline Live access.
- Rental: For project-based work, seasonal operations, turnarounds, or organizations evaluating the technology before a fleet purchase, Concept Controls offers short- and long-term rentals. Rental is also ideal for temporary coverage without expanding your permanent fleet.
- Calibration and service: If your organization already uses Blackline devices, Concept Controls offers calibration, bump testing, and service support to ensure compliance and optimal performance. Devices not calibrated on schedule may fail to alarm correctly, which is especially critical when the device serves as a worker’s emergency alert system.
Close the Gap Before an Incident Opens It
A lone worker monitor automatically reduces the time between an incident and the arrival of help, without requiring the worker to initiate a response. For organizations with workers isolated by location, time, or task, this is becoming a regulatory expectation rather than just a best practice.
The Blackline G6, G7, and EXO 8 offer solutions from basic single-gas personal monitoring to advanced multi-gas detection with satellite coverage and area-level monitoring. Selecting the appropriate device for your hazard profile and workforce requires careful consideration.
Our team at Concept Controls can guide you through the available options, help assess your coverage requirements, and recommend the right device, whether you need to purchase, rent, or service existing equipment. Browse our full Blackline Safety lineup or contact us to get started.
Explore Our Safety Solutions
At Concept Controls, our specialists can help you assess your environment and match the right device to your needs. Contact us today. We are happy to answer questions, compare products, or arrange a demo.