A really interesting device – at it can be used as a edge device running at very little power, and still use WiFi for communications.
The price point is not bad – I will have to buy one and try. It will not work for all of my sensors, as some of them needs to warm up by applying a constant current for a significant time to produce accurate results.
All from https://www.thingsonedge.com/product-page/wifi-cricket
It even supports MQTT – but again this will require a bit of power at regular intervals.