2 Pieces AC Power Meter AC 80-260V 100A Crs-022b LCD Digital Voltage and Current Monitor Meter Power Voltmeter Ammeter with 100A Current Split Core Transformer CT

Installed easily. Unit must be mounted in an enclosure or protected since the connection screws are exposed on the back. Two units installed. One in a 120 volt heater circuit and the other in a 240 volt water pump circuit. both seem to be doing well.

I used this for a small apartment’s panel still fed from a 30 amp 240 V main. Commenters had said the CT wires were short and would need to solder additional lengths. That was true even though I put them right above the panel. You’re on your own as far as what you use to mount the meters into. I used stiff plastic with little windows cut out, then covered it with a pretty wrapper.It works well. You can set an alarm setpoint on each meter where it will flash rapidly. I set 25A and saw it once with coffee maker and microwave running on the same circuit. Just like in an RV, you can run anything but just not all at the same time. This is my second set ordered for a different (100 amp) panel.

I was hoping it would work on my 200A panel (assuming I was using less than 100A at a time). But the clamps weren't large enough to fit over the 2/0 aluminum wire.

Amazing item for the price I hooked them to my generator input wires so I can monitor the draw on it while power is being used and I did not have a single issue with operation. I do how ever wish a wire size for the power was noted in instructions as well as better instructions on the install.

These meters are installed easily, look and work great. I installed both meter digital displays in a 4x4-inch Cantex PVC junction box. Mounted the box just below the outside of my electrical panel and ran the wires through a knockout on the bottom of the panel and in a hole I drilled in the back of the junction box. Now I can accurately monitor the usage of this electrical sub-panel.

Seems to be as advertised. Easy to install. Have only used it a few hours so I don't know about durability.

I like this power monitor mainly for the price. I was going to get one on Amazon that costs $165 but looking through the reviews of that one, I notice people were saying that the unit would not work unless attached to the cloud, meaning your data transferring over the internet! Because of that I purchased this one. You will only be able to monitor 1 to 2 power legs with this unit but that's enough to figure out how much power each breaker is drawing. Getting the unit reset was not easy, even after reading through the other reviews. Here is the KEY to resetting it. When you hold the button down to reset the unit, continue holding the button down until the unit displays the power reset message. The first message is NOT the power reset. Continue holding the button! Then once you release the button press again and the data is cleared.

The accuracy is very good for my use, testing a small ice maker. It is basically just a small upright freezer with a refrigerator style ice maker. It draws a couple of amps 120V ac making ice ~150W with the power factor. I am not sure how cost effective it is because it only stores about 6lbs of ice. The biggest down side to the meter is the one button set-up a few more buttons would make it a lot easier to setup and use.