@VigII posted:Did you find the bubble level setting in the app? I fooled it to interpret that the sensor was a close to level as I could. That setting is what I attribute the accuracy at higher levels. I don't know the sensor's ultrasound cone angle is but setting a "level" baseline made a difference in my installation since my sensor is mounted on a sloped pat of the tank.
Yes I did find the bubble level. However, I did not try to adjust it. Since that helped your installation calibration, being on a slope tank wall, sounds like I should give that a try. Cheers!