bayiteVolt Amp Meter, DC 5-100V 100A Dual Display Current Voltage Meter, Digital Mini Ammeter Voltmeter Gauge with Hall Effect Sensor Current Transformer

Amazing device. I bought one to test, then bought six more. I attached one per battery in my battery bank so I can easily tell if a terminal fuse is blown and I can see if the amp pull from each battery shows the bank is balanced. I was expecting the accuracy to be just ok, but I was wrong. It is almost perfect. Every battery shows the same voltage value - which they should since they are interconnected, but that shows each device is calibrated correctly at the factory. The current readings are close to what my Victron BMV reports. It's hard to find a device like this that works for DC and up to 100 amps. I'm going to buy an eight to show the current being pulled from the alternator. Build quality is excellent. The devices look nice and they include an extension for the current clamp. I just wish there was a circular version that fit in the standard 1" hole.

Only had it installed for a day now on my lawnmower to find out why my battery is always dead. Very easy to install and wire. I had to reverse the amp pickup on the battery cable, it was showing negative amps, the marking on the pickup was marked wrong. Not a big deal. It works very well. The red volt display is a little hard to read but I'm sure it wasn't designed to be used outside in bright sunlight.

Meter has bright and clear display, but no directions on polarity of ammeter function. Test before installation. You will get a second decimal point on display if polarity is reversed.

Work as in description. Easy to connect.

Haven’t really used it yet because I was unsure about the instructions. After communicating with a support person (who responded immediately and was quite knowledgeable) I now understand the instructions much better.

Replaced a shunt-type meter with this unit. Very satisfied (automotive application). Maybe just a little bright when on the open road at night, but otherwise nicely visible day and night in well-lit surroundings. Buying another for second car.

Wife and I went on a camping trip, first day was for "self contained" / no hookups. Disaster struck, the "Coach" DC power was lost, it appeared as tho the batteries had completely died, we were up the river without a paddle so to speak. The following day we moved to full hookup site and everything OK. When I got home, tried to solve the problem of what is wrong with the DC power? I pulled the batteries out thinking they needed replacement (after less than 2 years), thought about buying a new converter / inverter. I tried to charge the batteries outside of the camper and they seemed to take it. Next morning, I installed this monitor, re-installed the batteries, and tried to start things up. The monitor was showing I had 13 volts, yet nothing was getting to the devices (lights, etc) and the camper monitor was dead / no LEDs for anything. I had my wife cycle the "COACH:" connect / disconnect switch and we could hear it, I followed the sound to the engine compartment (Class A Motorhome) and located the sound, as well as a small metal 'box' with a black button sticking out the right side of it, I pushed it in and that apparently reset a breaker, which then enable DC power to ALL devices. Problem solved! Bottom line, I NEEDED this device so I can more accurately diagnose problems with my system, it at least told me I had voltage at the batteries when nothing else in the camper could tell me that. AND, it monitors current, and I now can tell whether or not it is being charged, and what load is on it. Thinking ok buying one of these for my motorcycle too.3 pics: 1st one shows overall installation, battery was just switched "ON" and is being charged by the converter, 2nd pic is closeup of 1st pic, 3rd is battery disconnected / not being charged OR discharged

I don't like the current reading in reverse (adding a dot is confusing)