4-in-1 Multimeter

DROK Digital Multimeter - Great product! I have a RELIANCE transfer switch with two analog Amp meter. I connect this transfer switch to my home electrical panel and to transfer 6 specific circuits to me generator when the power goes out. One of the Reliance Amp meter was not working well so I ourchased these two DROK Multimeter to replace them. The wiring was clear enough (both on the back of the unit and on the notice). there was some comments on previous reviews on the length of the wires included with the package. I found them long enough if you intend to set your Multimeter next to the transfer switch box. Set up took less than 20 min and the meters are working perfectly - showing both voltage and amps. I would recommend this product to anyone who would like to have a measure of the amp and voltage coming out of your generator.

Amazing product, cheap and reliable. The energy counter does not reset to zero after an outage. It simply resumes working. I am now waiting for the outdoor version. This only should be installed indoors.

I bought this to monitor the load on a 6kW Onan diesel generator I use to recharge my home battery backup system in emergencies. Inexpensive, but works just fine. I used CAT5 cable for the connections, doubling up the 8 wires to make 4 pairs. As others have commented, the leads on the CT transformer are short, but in many applications they'd likely need to be lengthened anyway, so I don't know what factory length might be considered useful. Note: If you are also buying a box to mount this in, I'd recommend a metal one (or one with a metal front panel like this one: Electronics Enclosure Plastic Project Box 5.25" x 3.25" x 1.562" ) as the tabs that secure the unit don't allow quite enough clearance for the thicker wall of the plastic box I had on hand. However, I was able to shave a tiny bit off the tabs to accomodate this.

Worked good for the first 4 hours. Then the readings were all over the place for about a hour then the screen went blank just lights up no read out. This is number two first one did last a hour.

I purchased this meter to check the current being used by various appliances that I plan to use in my trailer. I installed it in some sort of plastic electrical box I found at a big box home improvement store. I didn't want to use a larger double gang box and found this one for less than $2 including the cover plate. I had hoped to install this in the cover plate but it wasn't big enough so I cut out the side of the box with a rotary cutter in a dremel tool and it made for a pretty neat installation. I bought a cheap appliance (14 gauge) extension cord to run in and out of the box. My finished product is like an extension cord with the meter in the middle. Plug whatever you want to measure into the end of the cord and plug the other end of the cord into an outlet and instant current and voltage measuring capability. With the box being so small and the cord very thick it was a really tight fit and I would have been better off with a bigger box but it worked out OK. The meter does most of what I want. It was easy to install but the instructions for setting the display are lacking. Some people complain about the locking tabs only being able to fit on a very thin faceplate. I was able to overcome this by using a cutoff wheel in a dremel tool and very slightly shortening the end of the locking tabs. Go easy here if you try this as the plastic pretty much instantly melted when touched with the spinning cutoff wheel. For less than $20 this is a pretty neat meter. I hope it lasts a long time.

A+

Not sure how the picture will show on line as it kept laying it on it's side no matter what I tried. I wanted a way to monitor the power coming in on both phases of the 50amp into to our RV because I have had a lot of problems with faulty campground power boxes because of corrosion usually, faulty breakers where one half of the dual 50 amp breaker was bad and many other conditions usually a result of poor maintenance of the facilities. I Made the box shown so that both phases are shown, A on top and B below. The multimeters monitor voltage and current and of course with those the math for instant power readings and kilowatt hours consumed. Now I can see phase balance and or power input problems, ie. the voltages should be the same or at least with a couple of volts depending on the park wiring loads. The wiring shown has since been covered. The little volt meter on the bottom in red is the DC voltage coming straight out of the converter that runs your DC power while plugged in and battery power when not. I will be purchasing additional units as the price is right for the function and quality. The install did require cutting the locking tabs to fit the thickness of the plexiglass panel I mounted them on.

I have bought 10 of them over the last 2 year,I have 2 working perfectly and 1 that works does not light up any more,the rest are dead. This could be a great product if they would only last more than 6 months or so.

I bought for my RV project. I added two car batteries for my old van to use as power source when I camping in the Van. I connected this meter to monitor the battery levels while I use them, but also watched for charge level after use. I works fine, so I bought a second one for my garage backup battery pack. I don't know how accurate I can be, but the reading is make sense (very similar) when cross check with my hand multiple mater.

Lo instale en el centro de carga de la casa y esta funcionando muy bien, completamente recomendado para llevar un control interno.

It's very good product I'm using 2hp borwell motor it's showing acquired amps and voltage over current alerts can set it's working good back light blue colour display it's very good design I like and I recommend to others it's worth full product costs also rusonble thanks

Perfecto era lo q buscaba

Good value for the money. Seems to be giving accurate results: my furnace is 20kW and the reading is exactly 20kW. It’s scary to see how every 3 minutes 1kWhr is consumed! The direction of the writing on the back is misleading: if you install the device so that the writing is in the correct direction then the display will be upside down. The diagram is correct and you have to follow the indicated wire connection. Just make sure that the button is to the right of the display and the display will be fine.