A battery backed solar powered unit would be ideal for installation where power is not readily available. Scheduled WiFi or the addition of LoRa would also be a benefit. Nice project.
I am planning to put the AirGradient (not sure which model yet) into the yet-to-be-built van with a camping setup. Powering it independent of the van's electrical system is a consideration.
Came here to ask that: Any chance for battery powered LoRaWAN version?