Review on 📊 Enhanced Accuracy and Convenience: Efergy True Power Meter with Voltage and Phase Measurement, No Wi-Fi Needed by Jeff Payne

I am an EE and installed this on my panel (live) with no problems. If you don't know anything about electricity, find someone who does. FOR: Works instantly. Since I only have one tariff, I switched all tariffs to this tariff. This is the hardest part to set up. I use it on a large chain to see how much it consumes over time. I'll switch it to other main circuits once I have the basic info. I need for the 1st which may take a few weeks. Moving the current transformers is easy and there is no need to move the power connection. The TT cables are a bit short. If you actually have several different plans for the time of day or day of the week, I think this would be very useful for keeping track of your spending. Since I don't do that (yet), this function doesn't make much sense to me. This version is not connected to a computer or the Internet. I consider this a plus. CONS: If you want to monitor your entire house and don't have different tariffs for the duration of your usage, you can skip this gadget and just periodically read the meter and enter the numbers into a spreadsheet, or even do that. arithmetic by hand. This device could do a lot more (at least for techies), but it doesn't. It supposedly monitors the phase angle VI and thus determines the active power. Most consumer monitors don't do this (which is why I bought it). This basically means it is more accurate esp for motors, compressors, electronics etc. BUT it doesn't show a power factor, it doesn't show apparent power (volt-amps) or reactive power. The much cheaper Kill A Watt Meter does this (but only for a 120 volt circuit). You just have to trust the TPM to do the calculations correctly. It also doesn't show peak power (I'd like to know how much this compressor drew when it turned on, eg: starting current). In fact, it's only a meter. It shows you the average for the last day, week or month and how much your usage is costing you (if you have set up your plans correctly). There is no explanation for use on a 120 volt circuit. If I want to do that, I have to experiment. The manual implies that somehow this works. There is no obvious way to use 2 CTS to monitor 2 different 120 volt signals simultaneously (would be nice). Because it's a single-channel device, it can only control your entire home. or one chain at a time. Spring. I think you could run some wires through the CTs, but it would be better if you put the right set of wires through each CT in the right direction and you may have to rewire some cables. I understand that the Internet-connected version can do more things, save a longer history and display beautiful pictures, but it still seems to be a single-channel device, if you can't combine multiple devices maybe, but it will be expensive in a hurry. OVERVIEW: If you're struggling to find usage rates that fit the overall scheme of this device, this can be very useful for tracking your spend in real-time. Otherwise it is only one meter. However, it can be connected to each individual circuit on the panel to isolate the use of that circuit. This was my device app and it looks like it will get the job done. This version/package has no computer or internet interface.