Case study

Wearable fall detection aid

  • Wrist-worn fall detector/personal alarm for vulnerable people.
  • 10mm coin vibration motor used in the wristband.
  • A robust vibration motor used to detect a fall, and connect the wearer to their emergency contacts.
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  • Our customer approached us seeking a powerful and robust coin vibration motor, to integrate into their wearable fall detection aid.
  • Low energy drain on the battery was vital along with a long motor lifetime as the device was designed to be worn 24/7 including in the bath/shower.
  • They were unable to get any support from an Asian factory due to the small volumes they were looking to purchase.


  • Our UK engineers reviewed their device specification, and discussed their requirements so they understood the needs of the customer.
  • Our Hong Kong engineering team evaluated our selection of in-production coin vibration motors to choose the most suitable one.
  • We were able to help spec in custom wire sets, as this would speed up the assembly process on the customer’s production line.


  • There has been a consistent demand for their wearable fall detection aid since it launched over 10 years ago.
  • We have ramped up supply as their demand has increased over the years. They now have a consistent annual order.
  • We are now working with them to develop an electronic ankle-worn security tag, that uses the same 10mm coin vibration motor.

Project scope

Wrist-worn fall detection aid for vulnerable people with a risk or history of falling

Our customer approached us while they were designing a new wrist-worn fall detection device that would enable vulnerable people to continue living independently, and with a reduced fear of falling. The device was designed to automatically detect a fall, along with having a push button that the wearer could press. It’s designed to provide the wearer’s family and friends with peace-of-mind as they or the Emergency Monitoring Centre would be instantly notified when a fall occurred.

The device was designed to be worn 24 hours a day, 7 days a week including in the bath/shower. This meant it needed to have a long-lasting and robust motor. The motor also needed to have a low drain on the battery as they wanted to reduce the number of times it needed to be removed for charging.

The customer was struggling to find a motor manufacturer who would supply them with the small volume of motors they were looking to purchase in the begining. They were ideally looking to work with a UK based company as they pride themselves on their ability to design and assembling all their products in the UK.

We worked with the customer and were able to support them with both the motor volume they needed and designed to their specification, a custom wire set. The customisation simplified the production line and reduced the amount of assembly time needed.

We have been supporting this customer for over 10 years, and have seen a steady increase in their annual order volumes. They also asked us for support with the design and specification of a new electronic ankle-worn security tag. This uses the same 10mm coin vibration motor that they use in their fall aid, due to the quality and price.

Wearable fall detection aid


Designing for application

  • Our customer’s design required a low-energy drain on the battery, along with a long motor lifetime as the device was designed to be worn 24/7 including in the bath/shower.
  • The device needed to be as slim and as light as possible. Market research had identified that users didn’t want to wear a bulky item.


Manufacturing and testing

  • Our team designed a custom wire set that helped reduce the amount of assembly time they needed on the customer’s production line.
  • The device was fully tested, to ensure that it would be easy for a vulnerable person to use in the case of an emergency.


Results and relationship

  • Since the product launch, our customer has been purchasing from us for over 10 years and has gradually increased the volume of motors they are buying.
  • Due to the quality of the coin vibration motor, they are now using the same motor solution in a new ankle tag product.


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Industries we serve

At Precision Microdrives we design and manufacture customised electric motors and mechanisms across a number of industries.

Precision Microdrives

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