We have two of those, as good as they are I wouldn't trust them on an external door[0]. The locking mechanism has to be fairly light weight due to being driven

We have two of those, as good as they are I wouldn't trust them on an external door[0]. The locking mechanism has to be fairly light weight due to being driven by an actuator and a battery operated one at that, which means instead of a deadbolt-like configuration it is a traditional spring Latch, which could make it susceptible to bumping or even a strong rare earth magnet. Plus the key is pretty simple. [0] https://www.youtube.com/watch?v=X038GMKwHNw https://www.youtube.com/watch?v=X038GMKwHNw