TL; DR: Both are easy to use, have good features, are quite small and seem like very accurate options) Cons: no prediction mode works Cons: no power wattmeter Comparison of two power monitors that have features that others don't I'll talk only about the ones I consider relevant. PN has a really basic interface like the P3, but with the backlight on and off, I have to vote for PN on the interfaces. Finally, the only other real difference would be the measurements. In short, the P3 has very few modes, it's a bit bigger, more expensive and looks a bit dated, but a really good prediction mode. If you are mainly interested in the cost of your device and overall l the amount consumed per (month/year/day/etc.) without having to do any mathematical operations other than looking at the screen, this is the device for you. In short, PN is smaller, looks more modern and has many more features. With a backlight and metering mode for just about any energy monitoring you need, this is what you need. If prediction mode was added to PN, FARRR would be the #1 winner. I'm leaving it 4 stars only for the lack of that mode.
Electricity Monitor Voltage Overload Protection
8 Review
๐ Interlock Kit for Generators with Cover and QOM2 Frame Size Main Breaker Interlock Kit
8 Review
๐ก Professional Generator Interlock Kit: Compatible with Square D QO or Homeline 150/200 Amp Panels, 1 3/8" Spacing Between Main and Generator Breaker
7 Review
P3 P4400 Electricity Usage Monitor
9 Review
๐ก Hydrofarm Quantum QT400 Dimmable Ballast for 400W Grow Lights
5 Review
๐ก Electronic FL Ballast ICN-4P32-N (Formerly ICN-4P32-SC) for 3-4 F32T8 F40T8 F17T8 Lamps, 120V/277V Compatibility
5 Review
Robertson Worldwide ISL432T8HEMV AH 3P20160 120-277V 50-60Hz High Power Factor 4 F32T8 Linear Lamp Fluorescent eBallast
6 Review
๐ก High-Quality Advance ICN-4P32-SC Electronic Fluorescent Ballast: Ideal for 4 Lamps, 32W T8, 120/277V
3 Review