Q.Succulent Moisture % If Using A Sensor
You mention in an article that you can use a moisture meter or sensor. What is not mentioned is what would be considered an appropriate % for succulents. In essence, is 25% moisture 2 inches deep considered dry, medium or wet. At what point is it too dry and at what point is it too wet. I found a great set of inexpensive sensors from Ecowitt and have 16 zones of information, but can’t seem to find any guidance on the dry, good, wet spectrum for %

Certified GKH Gardening Expert
Ecowitt should provide that information with their sensors. If not, I would contact the company. I don't find a standard set of measurements for soil sensors.
Here is a good article about how and when to water succulents:
https://www.gardeningknowhow.com/ornamental/cacti-succulents/scgen/watering-succulent-plants.htm