Sentinel

your bike's digital bodyguard

Screenshots

Hunter's comment

If you love traveling and on the same time you love cycling then you must need a perfect lock. As this is a technological era so you will prefer an advanced technological stuff. Here is Sentinal. It has some superb features which makes it really unique:

Sentinel is the toughest, smartest bicycle lock available. It truly is your bikes digital bodyguard.

$136

Link

https://www.indiegogo.com/projects/sentinel-your-bike-s-digital-bodyguard#/