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MicroSOS – the world’s smallest personal safety alarm with 24 hour backup and response at the touch of a button

SBD Oval No background resizeThe world’s smallest, most discreet and easy to use personal safety device featuring A-GPS, GPRS and mandown technologies

Certified to the highest industry standards, (BS 8484:2016, Secured by Design and IP67), MicroSOS is the smallest and lightest device available in the world. It provides lone workers and vulnerable individuals a simple yet effective way to call for help in any emergency situation.

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The world’s smallest device, simple operation and quality features of MicroSOS makes it suitable for a wide range of applications.

Simple Alarm Activation

  The alarm is activated by simply holding down the central "SOS" button for a few seconds. To indicate when an SOS alarm is initiated, the device will vibrate discretely and again to confirm it has connected to the IMC.

24 Hour Emergency Response

  Using palm-sized personal safety alarms, specifically and exclusively developed by Skyguard, fitted with the latest mobile phone and A-GPS technology, a call for help is just one button away. Each of our alarms is fully certified and audited to BS 8484:2016 (code of practice for the provision of lone worker devices) and accredited to the Association of Chief Police Officer’s (ACPO) coveted ‘Secured by Design’ accolade.

Position Reports

  On-demand position request allows the device’s map location to be summoned from a mobile phone via a simple SMS message. The user’s location can be viewed on an online map at Skyguard’s secure Customer Service Centre portal.

Compact Design

  Weighing just 27 grams, the MicroSOS is the most compact and lightweight personal safety device on the market. It can easily be worn around the neck as a pendant, attached to keys, work on a belt or even via an identity badge holder.

Voice Memo (Amber Alert)

  Voice memo feature allows the user to leave a message, providing the Controller with useful additional information in an emergency.


  All calls and actions are digitally recorded on secure servers within our IMC, should they be needed as legal evidence. Skyguard’s audio recordings have led to numerous successful prosecutions.

Secured by Design Certification

  The MicroSOS is one of the few devices in the industry to be certified by “Secured by Design”; an initiative which guarantees national police approval of a product through meeting the highest security standards in its design.

Customer Service Centre

  Our online Customer Service Centre (CSC) portal allows the user or client administrator to update their personal details in real-time, 24/7. This information is immediately available to Controllers during an alarm.

Inclusive Emergency Calls

  All airtime and data usage, including emergency alarm calls to Skyguard’s IMC are included in your service subscription*

Mandown Alarm

  Enables the device to automatically send an alarm to the IMC in the event of a fall or sudden impact. The feature is vital if the user slips, trips or is knocked unconscious and is unable to raise an alarm manually. Mandown can be permanently enabled or switched on/off when required.

One or Two-Way Audio

  The MicroSOS personal safety device comes equipped with two-way audio, which allows the Controller to talk to and reassure the user when the alarm is activated, if safe to do so. The microphone is sensitive up to 2 metres and the loudspeaker is audible up to 2 metres.

Water and Dust Proof

  IP67 rated which means the device is fully protected against dust and is waterproof (down to 1 metre, for 30 minutes).


  Assisted Global Positioning System (A-GPS) significantly improves the start-up acquisition of GPS positioning.

Alarm Transmission

  On activating the SOS alarm button, the MicroSOS personal alarm sends its location to Skyguard’s IMC. An UPLOX chipset, accurate to less than 10 metres in ideal conditions is used so our Controllers will know exactly where the alarm is coming from. A two-way voice call is then initiated* with the Skyguard Controller who will follow the personalised emergency procedures you provided us, and if appropriate, they will summon the emergency services or our own National Response Service and contact your employer. *Our Controllers will listen in to find out what is happening in the user’s vicinity. If it’s safe to speak, they’ll do so. If it’s not safe to speak, don’t worry… you don’t need to say a word – we’ll send assistance if appropriate.

BS 8484:2016 Certification

  The MicroSOS is fully BS 8484:2016 compliant and certified by external audit through the National Security Inspectorate (NSI).

Status LEDs

  The Status LEDs display information showing you exactly what the device is doing. Indicators include GPS availability, GSM connection and signal strength. The device will bleep when the battery is low and the battery LED will triple flash as an indication.

Exclusively Designed in Britain

  The MicroSOS personal safety device has been exclusively developed by Skyguard. It was designed in Britain and is the result of 18 years of extensive market research and technological development.

Operate in Areas with Little Mobile Signal? No Problem

By fitting your MicroSOS device with an optional Roaming SIM card, you can utilise the strongest signal from any of the 3 major UK mobile networks and significantly decrease the chance of losing signal in areas of weak network coverage. Why risk not having a signal when you need it most? Talk to us today about our Roaming options.

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Why not try the MicroSOS personal alarm for yourself? It's free!

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