Lone workers are those who work alone without close or direct supervision. Employers of lone workers are responsible for ensuring that lone working employees are at no greater risk than other employees.


TWIG personal safety alarms are dedicated devices designed for multiple lone working situations.

Lone Working Characteristics

Lone working employees are not automatically exposed to higher risks and hazards than other employees but the fact of being in a risk situation alone increases the vulnerability. Moreover, this vulnerability will depend on the type of situation in which the lone work is being carried out.

One worker in fixed establishment

Mobile worker away from colleagues

Stationary lone worker is the only person in fixed place e.g. in kiosks, petrol stations and shops. Small businesses often use lone workers, e.g. a shop might be staffed by just one worker at any given time.

People working isolated from their colleagues e.g. home care nurses, maintenance workers, cleaners, rent collectors, postal staff, social workers, home helps.

Working outside normal hours

Cleaners, security, retail service workers, maintenance or repair staff, agricultural and forestry workers etc. are examples of occupations requiring working in the evenings and at night.

Lone worker risk assessment

Lone worker risk management begins with assessment of the risks faced, such as accidents or violence. Solutions to address those risks can then be developed and deployed. At the lowest risk level, a normal smart phone may be sufficient to call for help. A safety phone with alarm button, doubling as mobile phone, is often suited for moderate risk scenarios. A dedicated lone worker alarm may be required in high-risk situations, for best quality safety functions as well as to reduce multitasking risks in the device itself.

TWIG Advantages for Lone Worker Safety

A Variety of LVP Functionalities

A variety of lone worker protection (LVP) functionalities: GPS, ManDown alarm, 2G/3G, SRDs (short range devices), ATEX, Amber alert, indoor positioning, high-power speaker, compatible accessories...

Compatible Devices

TWIG Devices are compatible with a large number of existing ARC systems and with ever new ones using TWIG Integrator Kit. New TWIG devices are also backwards compatible with prior ARC integrations.

Reliable Durability

The durable, waterproof and easy to use TWIG personal alarms with long-lasting battery ensure the lone worker safety in emergency situations.

TWIG Personal Alarm Devices for Lone Worker Safety

TWIG Protector Pro

The powerful 3G/GSM/GNSS personal alarm device designed to protect lone workers in demanding environments.

TWIG Protector Ex

The intrinsically safe 3G/GSM/GSSN personal alarm device designed to protect lone workers in explosive hazardous areas.

TWIG Embody

The wearable 3G/GSM/GNSS personal alarm device with removable belt clip.

TWIG Product Offer - More Than a Device


Chargers, batteries, wearables, and car solutions - all compatible with TWIG personal alarms.


Datasheets, Quick Guides, Configuration Guides and Declarations of Conformity


Extended warranty, custom sales box configuration, custom device settings, customer SIM-card provisioning, device mid-life upgrades, central station service provider –model...


TWIG personal alarms are remotely and locally configurable with selected settings. Read more about device configuration.


Visit our Support site to find answers to your questions and contact information to ask further questions.


TWIG personal alarms can be complemented with short range devices, a turn-key central station and AGPS feed. TWIG Integrator Kit enables integrating TWIG devices with alarm receiving centre.

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