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Equipped with precision current transformer
This AC voltmeter is equipped with a precision current transformer, you don't need to purchase it separately. The large-diameter current transformer can measure 100A current, and the current can be accurately measured without going through the meter. This voltmeter can be flexibly installed anywhere.
raymond carmichael
Reviewed in the United States on January 30, 2025
great meter
glovester
Reviewed in the United States on January 25, 2025
Made a meter to monitor output of an old generator
Linda
Reviewed in the United States on January 18, 2025
I have a couple of UPS devices in the house that are pretty fussy when it comes to the 60hz frequency. From time-to-time, the UPS would not switch to the generator power because the frequency would be off a couple of cycles.I purchased this counter and installed it. I am now able to adjust the frequency if it gets out of whack. Doesn't happen often, but it's sure handy to have when I need to fine-tune things!
Robert Eastman
Reviewed in the United States on January 10, 2025
I bought this unit to see how well Texas' now-notorious electrical grid is keeping up with demand during this arctic weather we are having here at the moment. Line voltage and line frequency both 'sag' when generators are struggling to keep up with demand, but so far so good (fingers crossed). I have also been monitoring the U.S. Grid via FNET's website which shows the instantaneous frequency in various U.S. regions, and this little meter is accurately tracking these changes (to one decimal place) as they occur in Texas' grid.Technical note: this meter truncates the frequency measurement at the first decimal. It does not round the value, and so if the line frequency is, say, 59.999... Hz, it displays 59.9 Hz, not 60.0 Hz. This is preferable because otherwise the frequency would always display 60.0 Hz except in cases of a serious grid fault. Line frequency typically varies less than 0.01% under normal conditions.Very nice little meter. Accurate, looks well made and has a nice, bright display, all at a great price. A solid five stars for this product.
Michael Richardson
Reviewed in the United States on August 7, 2024
It works and is fairly accurate. A must have if you have a portable generator that you intend to run appliances, tools, or electronics. I cut the cord off a 120 volt device that I threw away and wired it in. Then plug into a receptacle.
FlyboyTR
Reviewed in the United States on November 25, 2024
The media could not be loaded.
D. Gibbens
Reviewed in the United States on January 1, 2024
I added one of these meters to an electrical sub panel in my workshop to monitor current usage and voltage when I'm running my power tools. This meter works very well, was easy to install, and is easy to read from across the room. I haven't verified its accuracy with my multimeter but it gives consistent and reasonable readings.
jack maltby
Reviewed in Canada on December 16, 2023
Not happy
T. R.
Reviewed in Canada on March 4, 2022
The voltmeter and Frequency counter was very easy to install and worked great.
Amy Jo Martinez
Reviewed in the United States on October 19, 2020
The product works as advertised. Very easy to read and simple installation. Beware that the wired to the Amp donut and the voltage wires are very short!! I don’t I stand why they can’t make them longer and the end user can trim to length. Easy to trim than to stretch a wire...
Baudilio Rozas Alvarez
Reviewed in Spain on June 26, 2018
Llegó bastante antes de lo previsto y eso es ya algo bueno. Me sorprendió que es mas grande y robusto de lo que me esperaba, por lo demas ya esta funcionando y va percecto, ahora solo hace falta que dure. Y eso, muy bueno para llevar un control aproximado del consumo en el hogar, en un negocio o en cualquier otro sitio. Gracias
Charles S.
Reviewed in the United Kingdom on December 10, 2018
I use this on the output from my variac to show the output voltage and current drawn. Checked against calibrated meters and it’s within 1/2% m. Excellent
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