The Compact 3G/GSM/GNSS Personal Alarm Device for Lone Worker Protection

TWIG Protector


Scalable by Mobile Network and Optional Functions:
  • Mobile network
  • GNSS options (satellite positioning)
  • ManDown options
  • SRD3 compatibility options
  • Mains charger adapter type

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TWIG Protector - Specifications

Compatibility and Communication

TWIG Protector can communicate with all systems using MPTP (Mobile Phone Telematics Protocol) both SMS and GPRS. Tracking and alert messages include information on GPS / TWIG Beacon location, speed, heading and battery charge.

Provisioning and Security

  • Remote or local configuration
  • Authorization of remote and local access


  • Waterproof (IP67)
  • Shock resistant

Ease of Use

  • Dedicated ergonomic SOS key
  • LCD display with guiding symbols
  • Pre-programmable Quick dial / status keys
  • Amber alert key
  • ManDown control key
  • Answer / End call
  • Power On / Off

Key Telematics Functionality

  • Alert through SOS key
  • Automatic ManDown alarm (tilt angle or non-movement)
  • ManDown+ (two independent alert triggers, device orientation and non-movement)
  • Amber alert (timer alert, local + server-based)
  • Two-way GSM voice with speaker option
  • Device and user status messages
  • Interactive on-screen messages
  • GPS / TWIG Beacon SRD tracking*
  • Geofence*

Brief Technical Specification

  • Dimensions: 18 mm x 45 mm x 94 mm
  • Weight: 89 g including battery
  • Quad-band GSM (850/900/1800/1900MHz)
  • 5-band 3G (800/850/900/1900/2100MHz)*
  • Built-in GSM and GPS antennas
  • Operating temperature -20°C..+50°C

Operating Time

  • Rechargeable 1350 mAh Li-ion battery
  • Typical operating times, GPS/GPRS reporting**
  • 9 days (1 GPS report / hr)
  • 5 days (1 GPS report / 10 min)
  • 33 hours (1 GPS report / min)
  • 10 hours (1 GPS report / 5 sec)
  • Up to 25 days (GSM standby only)
  • Recharging time*** < 4 hrs for 95 %


  • High performance 48-channel receiver
  • Time to first fix: Hot start 1 s; cold start < 35 s
  • AGPS feed: Extended ephemeris over GPRS
  • Configurable opt-out and roaming block
  • Extended ephemeris on-board generation
  • Motion based GNSS control*

TWIG Point Services

  • Remote Configurator: turn-key service to manage all device settings over the air
  • Netloc: turn-key cellular location service
  • AGPS: turn-key service to speed up GPS

Sales Package Consists of:

  • TWIG Protector GNSS*/GSM unit with integral battery
  • Charger of choice (mains / car)
  • Quick user guide


  • ManDown alarm
  • TWIG short range devices (SRD) transceiver
  • Non-GPS version
  • ATEX-approved version *****
    • II 2 G Ex ib IIC T4 Gb
    • Zone 1 Category II Gas intrinsically safe temperature class 4


  • Charging station
  • TWIG Beacon SRD indoor/outdoor locating device*
  • TWIG Remote Button of SRD category 2*
  • TWIG Tag SRD RF identifier*
  • Leather carrying case
  • Car charger + car holder
  • USB programming cable

Communication is only possible within GSM network coverage. GNSS location requires sufficient signal, typically only available outdoors.

*Some product versions only.

**Operating times may vary substantially depending on environment.

***Charging only above 0°C and below 40°C.

****Requires appropriate central station implementation.

Alert triggers include alarm button, automatic ManDown function, Amber alert and optional TWIG Button wireless alarm. Predefined emergency protocol transmits last known user position and opens two-way voice connection to alarms receiving centre (ARC).

High-performance GNSS receiver with turn-key AGPS feed is complemented with TWIG Beacon indoor location.

Excellent operating times even in continuous GNSS monitoring are achieved through advanced technology and large-capacity battery.

Fully remotely configurable, the TWIG safety alarm is fast to deploy and flexible to operate. Also USB programmable, either manually or using saved file.

TWIG Integrator Kit resources enable integrating TWIG devices with alarm receiving centre. Optionally the TWIG WebFinder SP software provides a turn-key solution for testing or deployment. Or receive alarms and reports on your smartphone as SMS with web link, opening up Google Maps view.

The TWIG personal safety alarm including a short range devices (SRD) transceiver can receive alarms from several TWIG Button wireless alarms, determine its position from nearby TWIG Beacon locating devices also when GPS signal is not available, register attendance by swiping TWIG Tag RF identifiers, and register comings and goings with to the door frame attached TWIG Door Sensor.

TWIG Protector Advantages

4 Speed Dial Buttons
LCD Display with Guiding Symbols
LCD Display with Guiding Symbols
Multifunctional Personal Alarm

Like in a normal phone, the dial buttons enable calls to predefined numbers even along the emergency cycle.

Interactive on-screen messages make the communication easier and faster.

Adequate benefits for personal protection, attendance monitoring and telecare.

TWIG Product Offer - More Than a Device


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


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.

Usage Areas