DROK AC Multimeter, 50-300V 0-100A with Open Transformer 110V 220V Voltage Current Power Electric Energy Monitor, Ampmeter Voltmeter LCD Screen for Home-use

Neat little practical AC power meter for level 1 EV charger
I bought the HD (better display) version of the 40-300V AC 100A 6 displays meter to monitor my electric car’s level 1 home charging. Only the second day since installing, it works really well, accurate voltage, current is as expected and kWh charge agrees as to what my Leaf says. The display is readable from all angles and bright enough for all day use in my garage. I plan to reset the display on my electric bill reading date to compute my monthly fuel cost for my EV. To install tap across the garage supply after the switch, and feed the black wire through the toroid…..straight forward, though electrical knowledge and following safety rules is required – or please ask an electrician to install. In my case a slightly larger unit and display would be preferred – though I can see the size advantage of fitting into a standard dual size power box as a nice tool for electrical work, as others have done…. probably I will get myself a second unit for the same use.

Awesome, high contrast screen, works GREAT!
What can I say, I am more than happy with this product. Considering it’s approachable price tag I wanted to get one. I was a bit confused with the color display as I have not see this style/tech before. I don’t know how new it is, but I like it. It appears to be a revers version of a standard calculator LCD, but with a color filter over specified areas and a back light to give this appearance. (if this is how it’s done, then it’s a winner design). I have attached a few pictures of what I did with my product; Since I was not sure if the CT would be affected by a metal outlet box I bought a plastic one. I bought a faceplate with two long rectangle slots to fit the standard size outlets and switches for it. I bought a (slim design) GROUNDED fault circuit interrupter outtlet/switch for one of the rectangle holes and the other rectangle hole I would modify the DROK to fit in as if it was made for this plate. I wired the outlet switch to the outlet on the to turn the outlet on or off. It is between the switch wiring and the outlet that I applied the CT to. This way, when I plug in my contraption with the switch in the off mode, it will only be showing me the voltage (I find this convenient) When I turn the outlet switch to the on position, the fault light will turn on green (next to the ground of the outlet) and once I plug something in the outlet I start getting readings for the current and wattage. This has been such a great product. My outlet is rated for 15 amps, my heavy duty cord to the plastic box is rated for 20 amps (more heavy duty for give it longer wear and tear life).I have written to DROK a few times and asked him if they plan to redesign this product to have a face design to work in this type of face plate. I told him that this would be a bigger hit if they could do this. I also hope they come out with a “True RMS” version of this device as trms is far more critical with measuring amperage in sign wave/AC currents.To modify the DROK to fit into the second rectangle hole, I had to cut off the clips, fine two pieces of plastic parts with a hole just big enough for the outlet cover screws to fit into, and apply a bolt on the underside to get this to fit and work properly. If you ask me, it actually looks like it was designed to be used in this set up, and I’m very happy how well it came out!

I got this for measuring the power draw and kWh usage for my car charger and it works great. It is about the size of a 1 gang switch and was fairly easily adaptable to a 4 inch square electrical box in this case. The display fits nicely behind a 1 gang Decora style wall plate opening and you can easily access the reset button.

Low quality product,during work it stays 0 .totally useless.Dont buy it.just a waste of money & time.