PR10-E US15A Power Meter Plug/Home Power metering Socket/watt Meter/2.4 inch TFT Color LCD/0.5FS(New)

I had this meter measuring my inverter A/C unit, never seeing more than 10 amps, and after 3 weeks it shut down (the green dot in the lower right of the display turns red). The manual states it has an "auto restart" feature that I did not turn on. I tested it in the "ON" state and it does indeed restart in one minute or less (it appears to have a cool down sensor as well as a timer). I then tested the "launch overload" feature. "It has an output protection function and can be set to cut off the power supply when the voltage, current, power, or temperature exceeds the output protection value. The “Launch overload” mode can be set when the current is 2A or above. No current and power are detected whether exceeds the setting or not within 15 seconds when the “Launch overload” is checked. " Translated: "the meter will not monitor or enforce the current and power protection limits you have set. During this period, even if the current or power exceeds your protection thresholds, the meter will not cut off the output" This is false: I set the protect to 150 volts, 15 amps, 1750 watts, with both "launch overload" and "auto reset" on. Then I plugged in a 15 amp saw and turned it on. The meter flashed high current and shut down the power instantly. So it does not ignore inrush current for 15 seconds. I retested several times, same result every time. It is also extremely difficult to program, the instructions are bad, and the interface is extremely cumbersome. For example if you want to check the "auto rest" box you have to step through all 26 boxes every time just to set one. It is a very powerful meter, but maddeningly difficult to use.

Pros: Big easy to read color display that is backlit, and it "just works". I took it apart and was relatively impressed with the build quality too. Cons: It does run a little warm and it isn't UL listed so you have to use it at your own risk. My fridge seems to run the compressor way more often even after cleaning the coils and I was worried about how much this was costing me. This unit shows the all the stats (watts, amps, cost per day and cost total) so just leaving it in for a week showed me it was less than 70 cents a day which is OK I guess. I'll have to compare that with my next utility bill but I've got no reason to think it's inaccurate. It does have a lot of other features that I don't use. It has temperature, voltage, and current alarms which I turned off but if you lived in an area where you'd be concerned about power spikes or something that could be useful. The unit runs a little warm and I suspect that's mostly from the enormous relay inside it. I wish it had vents for cooling on the top instead of being completely sealed, ventilation might resolve that warming up issue entirely. It's easy to take apart but you do need those triangle-head security bits -- it doesn't standard Phillips or slotted head screws. However somewhat conveniently the internal CR2032 battery IS socketed so it's trivial to replace it when the battery dies some day. I hear these things shouldn't be used near their maximum rating so I wouldn't use it with any kind of heating device. Inside the wire is of a large gauge but soldered in place instead of using pin and socket connection so in a real bad situation I suppose wires could come loose and touch things. But for fridge, it's perfect. No problems!

Works really good. The screen has a lot of colors that makes it easy to see and there are a lot of alarms and timers. Customer service from Zhurui-tec is great!

I use mine in the workshop to help me avoid inadvertently overloading circuits. Overall, it couldn't be much simpler - just plug it into a standard 15A outlet and you're good to go. The display is reasonably large and easy to read, and you can tell at a glance what your power consumption is. I like that you can set an alarm threshold and it will alert you if you get near to overloading a circuit. There are a few things I'm not thrilled about. First is that the unit is large enough that it obstructs the second receptacle in the outlet it's plugged into. I use an adapter that gives me three outlets out of the power meter, but that's not a great workaround. Second issue is that I wish the meter reported both the current and the maximum power observed over time. When I run (say) a large table saw, there's an initial surge as the tool spins up, but I don't see that number unless I'm staring at the power meter while starting the tool...I'd much rather have a way to see the current/peak/average consumption. Third, I'd like to see an option for a version of this power meter that can be used on a 20A circuit. Seems to me that if you have higher-power appliances/tools/whatever, this might be what you'd want to measure. Fourth isn't really a shortcoming, but it would be nice to see the manufacturer invest in some type of app or connectivity, whether Bluetooth/BLE, WiFi or even something like Zigbee or Z-Wave. It would be nice to have the option to integrate the metrics from the power meter with things like home automation systems. Still, this one is just a "wish list" item - the vendor is clear that they don't offer this sort of feature. Shortcomings aside, I do think this power meter is of good quality and works as advertised. It's easy to use, accurate and definitely helps me to better understand my power consumption without costing an arm and a leg.

I was a bit hesitant to order one of these tools at the price, but it did look like it was easier to read than some of the less expensive models. It arrived well packed and was preprogrammed with the cost per kilowatt hour so it was extra easy to immediately tell how much I was spending on any given device I plugged into it. It is just the right size and seems well made. It helps with reading more than just line voltage and kilowatt hours. It shows wattage draw and even a few other measurements I am not familiar with. Overall a great product! Recommended!

Many options on menu - but very small. Bulky design. Essentially covers both outlets—maybe that is important for accuracy. It does seem to monitor well and it is good device if you need to monitor a small device.

I bought one of these back in November 2020, and my entire homelab's UPS is plugged into it... upside-down, because that's how it was designed, as some previous reviews have stated. I've used many P3, Kill-a-Watt, Watts-up meters in the past, and while they're great, they have a habit of going out of calibration and can't be fixed. Also, those two companies are no longer producing watt meters, so we're left with these options. I bought another this week and it came in today. I was preparing to have to disassemble it and resolder it into the correct orientation, but to my surprise, it was correctly oriented, right-side-up, right out of the box! They have listened to the feedback from their customers and addressed the single biggest complaint about the ergonomics of the adapter. Great work, ZHURUI! In addition to that, I noticed that the screen was much more responsive, snappier UI, and a touch more 'crisp', brighter, than the other one I bought, even set to the same brightness level. My only (minor) nitpick, is that you can't go to 5 or 6 digits when calibrating the per-kWh costs of your consumption. My power is $xx.yyy, but you can only go to 4 places total, which is not enough to get an accurate measurement of power to the thousandth place, like my utility company bills. Other than that, it's a fantastic device! Now if they can add an API or a way to datalog from the device straight into Prometheus or Grafana, I'd be even happier! (yes, I already do this with my Sonoff S31 + Tasmota custom firmware, but no display on those). Keep up the great work, evolving and listening to your customers!

Don’t buy this item. It broke within a week. Chinese junk.

work well and easy to read

Very cool, love the display.. so easy to view the readings. This new version of the meter is in the correct orientation as is depicted in the product photo's. One reviewer mentioned that "in order to get to the "auto rest" box you have to step through all 26 boxes every time just to set one", well perhaps that was the case before, however not anymore as it now only takes two "2" button presses to get to that same setting.. super easy! I was a bit sceptical after reading some of the reviews, however, since I won't be leaving it plugged unattended (as a precautionary step since it doesn't appear to be registered with any safety regulatory body in the US/CAN.. so use at own risk) I decided to try it anyway and I'm very pleased with the purchase thus far!

Works great and can handle more watts than most.

Nice and easy to read as in colour and gives multiple pages of readouts. So far has been on for a couple months.

Not sure if I got a lemon or if they are all the same. Worked great for a day or so, then the screen went white. Nothing seems to fix it.