Construction is a high-risk industry with a high percentage of fatal errors and major injuries. In addition to falls, slips and trips, construction workers are often exposed to noise, vibration and dangerous substances.

Duty of care requires employers to give lone-workers a means to alert help. TWIG is a dedicated personal alarm with essential features to protect construction employees and secure an employer’s duty.

Lone-working risks in construction industry

Falls, slips

Falls from heights are the most common cause of injury and death.

Being struck or crushed

Workers are crushed by falling objects and are stuck by lifting heavy loads or because of manual handling.

Exposure to loud noise

Communication between co-workers is difficult due to loud noise and hearing protection gear.


Cold or wet circumstances can reduce concentration and make manual tasks more difficult and put the lone worker in danger.

TWIG advantages for lone-worker safety

Amber alert

When entering a risky situation, the amber alert timer can be adjusted to trigger an alert at predefined time intervals.

Power for noisy environments

The integrated high-power speakerphone boosts two-way voice communications. A powerful vibrating alarm and alarm tones help alert you to pre-alarms and incoming communications.

ManDown alarm

The automatic ManDown function can trigger an alarm if the user is unconscious or unable to alert help.

TWIG personal safety devices for construction workers


  • Fully functioned yet with simple user interface.
  • One button action with four Man-Down triggers.
  • Fully waterproof.


  • Optimised for heavy duty operation in noisy environments.
  • Choice of four Man-Down triggers including slip and fall.
  • Fully waterproof. 


  • Intrinsically safe personal alarm device optimised for lone worker protection in potentially explosive environments.