Compliance standards

TWIG personal safety alarms are, where indicated, compliant with BS8484 Part 5 lone-worker alarm system requirements. Our marketing, product development and production fulfil ISO9001:2015 and Ex (ATEX) quality management system (QMS) requirements. Our manufacturing fulfils the requirements of REACH, RoHS and WEEE. We manufacture in our own low-energy factory and follow the conventions of ILO (International Labour Organization) covering fundamental principles and rights at work. Twig Com Oy (Twig Com Ltd.) is a private company domiciled in Salo, Finland, EU, complying with State of Finland accounting, tax, corporate governance and labour codes.

IECEx/ATEX compliance

TWIG Ex intrinsically safe models are approved to both ATEX and IECEx Australian/NZ standards for use in a potentially explosive atmosphere.

  • 2G Ex ib IIC T4 Gb
  • 2D Ex ib IIC T130°C Db
  • VTT 16 ATEX 040X/IECEx VTT 16.0009X


TWIG Ex (ATEX) products are type approved by qualified notified body and manufactured pursuant to an ATEX quality management system certified by qualified notified body. The notified body is VTT Expert Services (Technical Research Institute Finland).


TWIG personal safety alarms, where indicated, are compliant with the requirements of the section 5 of BS8484:2009 when implemented in a compliant alarm receiving centre.

Radio Protection Systems

TWIG personal alarms, where indicated, are compliant to standards concerning product and test requirements for radio staff protection systems for lone-workers and Product and test requirements using public telecommunications networks.


TWIG personal alarm devices of device types TUP91EU, TUP92EU and later are compliant to European Union’s Radio Equipment Directive RED 2014/53/EU.