I've been using this app for well over a year now together with my Brultech GEM device. I hooked up all my breakers to the GEM, and also some pulse and temperature inputs. This app gives me all the measurements I need. Plus I've created notifications based on my breakers (ie/ Stove turned on, dryer turns off, etc.). Great app and both the manufacturer at Brultech and the author of this app 'guessed' are very responsive and helpful. My next step is to link my doorbell into the GEM to receive notifications from that! Definitely recommend!