The Dragino worked perfectly for my application. It has a tremendous feature set for a door sensor. I was not expecting configurable door open alarms or door open/close statistics that included a door open duration timer, door open counts, etc. Thanks to their documentation, I had the Dragino LDS02 connected to TTN and a great Datacakes dashboard built in minutes. The one drawback was that it is slightly larger than most door sensors I install.
