I am terribly disappointed with your response.
Your technical description borders on false advertising, as you claim that your nodes last for 10 years, they have ranges of 2 km, and that they perform mesh network services. You fail to mention that you can’t have both at the same time, and that the range is 10 x lower in an urban environment.
You never say that in order to have a mesh the nodes have to be always awake, and that will deplete the batteries.
In fact, these devices have proven to be an outright disappointment in every aspect, from the cheap switch that breaks at the first use, to the performances which are far, far away from the advertised.