Help and advice Personal Safety & Lone Working Tools Lone Worker Devices Lone worker devices Lone worker devices and apps can play a useful part of a person or organisation’s overall personal safety strategy. Suzy Lamplugh Trust does not endorse one device or app over another as the best app for one organisation may not be the right one for another. Some of the products listed below are certified against British Standards (BS8484). For more information on British Standards or advice, please visit BS8484.com. Please note: Inclusion in this list does not indicate any form of endorsement by Suzy Lamplugh Trust. The Directory simply provides information regarding some of the safety devices that are available on the market, listed in alphabetical order. We do not endorse any of these devices, therefore we can’t and won’t accept any responsibility or legal liability for their reliability or effectiveness. Please use our downloadable Lone Worker device form to assist in assessing which device may be best for your organisation.