Easy to install, worked perfectly out of the box, great looking LED display, bright and sharp, very easy to read from a distance. Very pleased, recommended!

This is a great meter. It is bright, and easy to read. The only con is it only shows amps in one direction. Other DCA meters I have show a + number for charging the connected battery, and a - number for discharge. When connected, this device will show battery discharge accurately, but to get a charge reading you have to swap the sensor wires across the shunt. It is really a great device. I recommend it. It is also a great value for a big super easy to read display. Easily read from across the room, unlike most others.

Works as advertised. Installation was easy, but a slightly wider mounting bezel would be an improvement.

You can't beat the value of this meter. Comes with the shunt, Simple three wire hookup. I bench tested it, and it works great and is accurate. I will be building this into a test box for checking trailer wiring. I've used these products before and found them reliable.

Great digital volt amp meter handles up to 50-amp electrical loads.

I use them in my solar system set up. They work very well.

Perfect for my needs. I installed two to monitor and compare each phase of my generator output when it is running and one of the phases is L1 of my main line input when the generator is offline. This monitor is on constantly so I will be reviewing the life of this device later. I bought two extra for future replacements.

I tested with a 12v spotlight and the current read 2A. I adjusted the pot on the back of the meter to where it correctly read 2.2A, but then when I tested with 2 spotlights, it read 4.8A instead of the correct 4.3A reading, so the meter is adjustable but non-linear.The same tests with a bayite DC 5-120V 100A Hall Effect ammeter from Amazon were accurate or only off by 0.1A! I returned this and will try the bayite V/A Hall effect meter. It costs a little more, but is easier to connect and I would rather have an accurate reading!

bien élégant !

Muy buen acabado y exelente bisivilidad del display

So in my fifth wheel, I got tired of parasitic draw killing my batteries. I had added a small 50W solar panel (also from Amazon) and connected that into the system. It was granting me about 3A mid-day, which should be more than enough to keep the batteries from dying. However they kept dying over and over. I wanted to get to the bottom of it. I had spent months trying to figure this out.So I asked the question on here, on whether or not this meter handles negative current (i.e. solar charging). The response from someone was that it did. So I purchased it. I liked this meter because it came with a shunt which allows you to sample any current reading (small to large) while hooked in to a larger current circuit.So what's a shunt? Well it's quite clever. A shunt is a low resistance band that allows large current to flow. It's basically a resistor, with a very well known resistance. It looks just like a chunk of metal, but it's more than that. As current flows through it, you can calculate the drop in voltage from the resistance. Since you are measuring Voltage (V) and you have a known resistance (R), you can easily calculate current (I) with Ohm's law. Neat right?So when you hook up this thing, you gotta do it right. The instructions are technically correct, but are hard to port into your installation. So I'll explain it. The shunt has to be placed in SERIES right before the NEGATIVE terminal on your battery. So after all your RV stuff has been powered, cut the cable return going to the - terminal on your battery and stick this in series. As others have said if you put this on the positive side, it won't work. I don't know the science of it, but I tried it and it didn't work. So negative side only. Use the same gauge cable as your RV. In my case it was 10 gauge, which was supporting up to 20A. Then, you wire the meter in to the shunt with lower gauge cable. You can see in my pic. Then you also need to run a pure battery + line to power the meter. I just stole this off my CO detector. Then the meter works!Once connected, I verified by sticking a multimeter/ammeter in line instead of the fuse at my battery (this is an easy way to test current flow). I verified that both current and voltage were slightly off. They can be adjusted using the set screws inside the meter. These were very small and hard to adjust, but I did it. It seemed as voltage changed, the current reading would also change. So for example, if my solar panel was active, or my AC/Dc charger was active, it would throw off the reading. As others have said, I'm not sure this thing responds in a linear fashion. So you can optimize it to be correct at the low end, middle range, or high end. But it's not going to be perfect. Since I was looking for parasitic losses, I calibrated it to the low end. Voltage was also hard to adjust and seemed to bounce a bit too much. Just having the screwdriver on the screw seemed to change the reading. You'd pull it away and lose 0.5V. Not sure why, but it was annoying.Once it was all setup, I cut a hole for it in the cabinet and wired everything for final. The meter looks amazing, and gives me a lot more knowledge about what systems in the RV are taking power. If you dry camp a lot like me, it gives you a lot of confidence about where your amps are going. I ended up finding two incadescent bulbs left on in the trailer (one in the storage compartment and the other the outdoor lamp which was invisible in day light). So I found my parasitic losses. I also confirmed my radio and CO detector were taking about 200mA.Once the sun came up, the parasitic drains went to 0.0. So I know solar is working. Howver it does NOT read negative current. So whoever responded and said it does was either wrong, or has a different version than I do. It was depressing to see that. However I know when it's reading 0, it's likely in a charge state. So that is annoying, but still useable.I'll leave the RV parked for a bit and learn more about it. But overall happy with this purchase. It takes time to install and understand, and we'll see how long it lasts, but it is easily worth it for the price.UPDATE:After using this for two camping seasons, I can say I still love it. My batteries are no longer draining when I don't want them to be. I park the RV over winter (oriented towards the sun) and the little 50W solar provides what I need. I did end up disconnecting this circuit over winter as the CO detector and this gauge itself provided enough draw as to draw the batteries bit by bit. However in the summer it can more than compensate.

Pour une lecture d’Ampérage sur une GénératriceÇa fonctionne vraiment bien 👍🏼

Very reliable, precise, good reading, easy to install,