The readings are really good except the ones dealing with all the specs of the controller (went from 40 amp to a 60 amp) seem to be greyed out. I thought one could use this product via bluetooth and adjust the controller numbers. To recapture the monitor of the PV system (volts, amps, watts) I have to delete the previous session controller image and recapture it again. What does show on the phone display that is not greyed out is really a good contrast and a great image.
I like being able to see my system output in detail. It is very limited in connectivity though. If I try to connect more than one device or even one app on the same device, it can’t handle it. I have to force close the app it is communicating with to use another app or device with it ie. my wife can’t check it while I’m connected to it.
I added this to my solar battery backup system for my home. It is easy to use with the phone app. The range is only about 25 feet, not 80 feet as advertised. That's my only complaint, otherwise would have given it 5 stars.
I like it I would probably love it if I understood the basis of solar and the technical side of solar and batteries. I probably give it a 100% positive feedback if I understood. A little bit I do know I like that part of it.
I used the original and now this updated BT module. The range us much better. It is so easy to control battery parameters and charge controller settings with this app. You have to enter Admin password to make changes & it wasn't easy to find the password. 135790123 and you can change the password to your choosing.