The Intrinsically Safe Lone Worker Alarm for ATEX areas


Product Code:
Not available in United States and Canada.
  • Mobile network options
  • GNSS options (satellite positioning)
  • ManDown options
  • SRD3 compatibility options
  • NFC reader options
  • Mains charger adapter type

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        Lone worker protection features and benefits

        ManDown alarm

        ManDown alarm function triggers alert automatically by detection of device orientation, non-movement, impact or free fall. 

        Indoor location

        Paired with TWIG SRD, BLE or Wi-Fi beacons TWIG One can be located when GNSS signal is not available.

        Easy Integration

        TWIG Integrator Kit resources enable integrating TWIG devices with alarm receiving center.

        SRD compatibility

        High-performance GNSS receiver with turn-key AGNSS feed can be complemented with TWIG SRD, Bluetooth Low Energy and Wi-Fi beacons.

        Configurable UI and keypad

        The pre-programmable device keypad and soft key functions extend device usability.

        Compatible accessories

        Charging and programming stations, carrying case, belt clip, alterable SOS key colour...

        Power for communication

        On-screen messages with alert tone and vibration, preprogrammed one-touch status messages and voice calls.

        Attendance monitoring

        TWIG One Ex equipped with NFC reader registers attendance by reading NFC tags. TWIG One Ex is not compatible with TWIG SRD tags!

        Approved for gas and dust

        Approved for gas (II 2 G Ex ib IIc T4 GB) and for dust (II 2 D Ex ib IIIC TT130°C Db)

        Examples of lone worker jobs

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        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.