motion sensitive RFID bike alarm system by dennis siegel motion sensitive RFID bike alarm system by dennis siegel
feb 16, 2014

motion sensitive RFID bike alarm system by dennis siegel

motion sensitive RFID bike alarm system by dennis siegel
all images courtesy dennis siegel




conceived by german designer dennis siegel, the ‘RFID bikealarm’ is a motion sensitive electronic alarm system that is attached to the rails of a bike saddle. the device features omnidirectional movement sensors that detect tiny fluctuations an acceleration, emitting a 120db siren that scares away potential thieves. the internal micro controller is able to distinguish between theft and harmless vibrations, for instance a passing tram or regular pedestrian traffic. to mobilize the alarm system, the interaction is quite simple; users hold the unique radio-frequency identification tag close to the security enclosure to activate or dis-activate the ‘RFID bikealarm’.



motion sensitive RFID bike alarm system by dennis siegel

 the system complements mechanical bicycle locks by extending the range of protection with only a few components

motion sensitive RFID bike alarm system by dennis siegel

 the low-cost, durable and easy to use accessory features an internal battery that can be charged by USB

motion sensitive RFID bike alarm system by dennis siegel
detail of the alarm system



designboom has received this project from our ‘DIY submissions‘ feature, where we welcome our readers to submit their own work for publication. see more project submissions from our readers here.

  • Nice DIY submission indeed. Congrats Denis!

    Vlad says:
  • nice idea. perhaps a rear light could be incorporated as well to add extra functionality?

    bigshape says:
  • nice device. smooth design, simple and very discreet.
    where/when can I buy it?

    David says:
  • 4mm or 5mm allen wrench, loosen seat clamp, pull out seat with post (makes noise), drop on ground and walk away with whole bike. Average wanabe thief will run but someone wants it they will get it. just saying

    rich says:
  • Oh my God: car alarms don’t work, they just infuriate the neighbors, destroy the peace and quiet of babies, writers, people on the phone, the bed-ridden, the dying. What works is automatic locking of the steering wheel. Do the same for bikes.

    Mort d'Urban says:
  • How about a automobile approaching from the rear alarm that would give advance warning to allow a glance to the rear to possibly avoid being run over.

    Duncan Kelley says:
  • This is great! Ok… so now how do I buy one of these?

    Jeana says:
  • Where can I buy this? France/Paris?

    If you lock your bike properly to a fence plus this it would be a heck of job to steal this in a busy street without attraction of attention. Perhaps it won’t stop EVERY thief but already a lot with the extra noise making peeper… Need one!!!


    Mauce says:

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