In 2008, Monaco must have moved the tank sensor monitors out of the Aladdin system and into it's own panel. Our friends who had a 2007 Dynasty had the tank monitors in the Aladdin so they always kept the system on showing the levels.
Our monitor panel is above the thermostat that shows propane (we have none), fresh, black and gray water. You hit the button for the tank that you want to check and a string of red lights will light up 'zero, 1/3, 2/3 or full. We have had no problems with those sensors in 7 yrs.
Now the Tecma toilet is another issue. It has it's own level monitor that also works with the above panel. In the bathroom we have the two button system, small flush or big flush. The light on that panel will stay green until the black tank is half full then it will turn yellow then red when approaching full. You can still flush when it's red but there is a 6 second delay while holding the button.
Sometimes, the toilet will show red when empty. I have to conduct a 'super back-flush' to clean out the tank which usually works fine. The last time it didn't help the sensor. So, I went to the black tank and found the sensor taped to the side of the tank and found it a little loose. I put a piece of gorilla tape on it to secure the sensor to the tank and it has work fine now for a month. And, I'm not sure if it was the 'system' sensor or the Tecma sensor but all is good with the earth now.
MM.