DROK AC Multimeter - Voltage, Current, Power Factor, Frequency, and Electric Energy Monitor, 40-300V 100A 110V/220V

Scott: Works Great. Came right up and gives me all the information I need. I would recommend this meter.

United States on Oct 14, 2023

Michael M.: I especially like the different colors for the different current, voltage, instantaneous kilowatt, and kilowatt hour measurements.

United States on Oct 14, 2023

Amazon Customer: I bought two and put them on my shop power distribution panel to monitor usage, they work great.

United States on Oct 12, 2023

Elvis moraElvis mora: Everything is good about it I will recommend it easy to install
Great results

Canada on Jul 12, 2023

VeeDubVeeDub: Love how it looks, the easy installation and easy to read layout. Have it set up on my Tesla charger and the readings are extremely accurate.

Have seen other reviews where it wasn’t reading 240v but have determined that is due to improper installation. Mine is reading accurate voltage and current.

Only negatives are the placement of the temperature connection and non standard size. The temp sensor is on the bottom at the very front that prevents installation prior to mounting the meter. It just makes it a little tricky to plug in but not a big deal.

I installed the meter using a 4”x4” surface mount junction box set 9” above charger. This allowed for the sensor to be contained in the box and temp probe reaches the charger.

I custom designed and printed a box cover/faceplate to mount the meter and make for a really clean display. A printed 7mm mounting spacer for the junction box placed the box exactly in line with the charger.

I am very happy with the end result. Feel free to look me up if you’d like your own custom faceplate mount.

United States on Jun 12, 2023

Stephen A Rowland: I love this meter. I installed one on my wife's pottery kiln. Shows voltage, current and power as well as total power consumed. The line frequency display is not useful to me but others may need it.

Canada on Mar 12, 2023

Amazon Customer: Lots of 'information' small space and costs a fraction of separately pieced together instruments to get these measurements.

Canada on Feb 17, 2023

GKP: I bought two (KWS-AC301 50v-300v/100A Pro+) of these to do a load study while planning my solar power system. This unit shows 8 values including Power Factor and Temperature. I connected both to 100 watt lamp to validate the accuracy. Voltage and current readings on both units were within 1% of my Klein professional meter. Power Factor displayed 1.0 which is correct since it was a pure resistive load, and Kwh calculated correctly over time. So the good news is they passed the bench test with flying colors.

I've had them connected to my 240v well pump. I take daily readings at the same time each day to determine daily usage. Current flow is 8.2A, right in line with the pump manufacturer's specs. The run time feature makes it really easy to determine how long the pump actually runs each day and the kwh consumption.

A couple of comments regarding using this data correctly and comments from others regarding inaccurate or confusing information:
1. There are several comments about kw not calculating the same as volts multiplied by amps. This is most likely NOT an error in the meter because this is AC power, not DC power. Unless the load is purely resistive, (most are...

United States on Nov 28, 2022

Client d'Amazon: Schéma simplifier. En réalité les deux bornes coté vert c’est pour alimenter l’appareil. Donc pour 120 volts mettre le neutre fil blanc sur une vis et vivant fil noir sur l’autre vis, déjà là tout les chiffres apparaissent, reste ensuite à passer à travers le CT sois la rondelles le fil vivant pour l’appareil que vous voulez lire la consommation. Pour le 240 volts connecter les deux fil vivant noir et rouge sur chaque vis et déja là tout les chiffres apparaissent mais avec lecture 240 volts, maintenant reste à passer un des deux fil soit le noir ou rouge à travers le CT. Note pour ceux qui ont 3 fil de couleurs ( pour certain appareil qui ont besoin aussi de 120 pour lumière ou ventilateur) en 240 ne pas utiliser le neutre fil blanc, car blanc et noir = 120 volts, blanc et rouge = 120 volts. En réalité le 240 au Canada et (aussi au Etat-Unis je crois) pour faire simple c’est du 240 séparer par le transformer dans le poteau en 2 phase de 120 volt noir et rouge 120 volt sur chaque fil. Si ça peut en aider tant mieux.

Canada on Nov 21, 2019

Daniel Sauvageau: I bought this meter to keep tabs on the output voltage and current from a VARIAC. Voltage is within 1V of my TRMS meter and current is within one count for the light loads I have tried so far, so I'm fairly satisfied accuracy-wise.

What is it losing one star to? The display gets noticeably dimmer and shimmery below 120VAC (it does not look completely 'solid' until about 200VAC). At around 60VAC, the micro-controller running the measurements shuts down, which leaves the controller running the LCD displaying frozen values. When it comes out of reset, it often reads half-scale of what the input actually is, which means having to cycle the input off-on or quickly bring the variac up through the 0-60VAC range to reset/skip the glitch range. I'm contemplating hacking it to separate the volt-metering and power circuits to make it usable all the way to 0V if that is possible. Also, as others have already mentioned, the current-sensing transformer wires could really have used an extra 12" or so.

Canada on Jan 30, 2018