Like everything there are positives and negatives.
On the plus side as long as it is located properly on the bottom of the tank it gives you a very good reading of the propane in the tank.
On the negative side the battery life is not very good. If you are full time and having to refill often then just remember to change the battery every 6 or 8 months and you will be good. I am not full time and use very little propane so the battery life is shorter than the time it takes me to use the cylinder of propane. I have rectified this problem by making a remote battery system that uses AA batteries mounted where they can be changed without removing the cylinder.
The sensor is thick enough that the tank has to be elevated slightly to prevent crushing it. They provide feet to do this but I am not impressed with them and made my own.
I also had one of the sensors lost the contact pad when I took it to be filled. Mopeka tells me it is not repairable but I will have to replace it as it is long past warranty.
