ECO-WORTHY Upgraded 200A Touchable Display Battery Monitor with Hall Sensor, 0-100V Meter Program, Auto Detection,for 12V/24V/36V/48V Li-ion/LiFePO4/AGM/Gel in RV/Solar System

The screen is bright and easy to read even with the sun shining in through the window, and it was easy to set the display to stay on all the time. The display provides at a glance info on the state of charge, a charge/discharge status and remaining run time at the current discharge rate. All the finer details of the power activity are also easy to display in both real time and graphed. The full color, touch screen, bitmapped display makes this feel very modern and high tech and the color choices are high contrast and easy to read even across the room.The setup process was very easy. I have a terminal block with my charge controller, inverter and battery bank connected. I passed the positive lead from the terminal block to the battery bank through the hall sensor in the direction indicated by the printed arrow, connected the display and hall sensor to power and everything fired up. I had no trouble passing my 0 gauge battery cable with the crimped on ring terminal connector through the hall sensor. Following the included directions, I set my AH capacity and full charge voltage and that was it. Ready to go.Accuracy is spot on. Across the board, everything I have equipment to separately measure lines up exactly with the readings displayed by this meter.This was not my first Eco-Worthy purchase. I also have two 24v 100ah lifepo4 batteries, their 3000w 24v inverter and several of their 12v 20ah lifepo4 batteries I use for HAM radio equipment. Since starting my off grid setup I have only needed to contact their support once and they were responsive and helpful getting me back up and running.I don’t see it mentioned in the product description, but the hall sensor and the display use rs-485 to communicate. I have had my 3000w inverter hooked up to both its included display and a raspberry pi using rs-485 for some time to record and monitor its activity. I’m looking forward to doing the same with the hall sensor once I have an adapter to get it connected.

Using this on my 24v solar system with 500w panels. Setup was somewhat difficult due to confusing instructions and balky touch screen. Access to parameter settings screen requires extra passcode entry touches every time. Not all of the settings the instructions says are adjustable can actually be changed and changes are not saved correctly. In operation, the battery “full” reading is reset to 100% automatically when changing starts and the AmpHour reading is not a cumulative total of charge/discharge cycles. The current “IN/OUT” readings are inaccurate below 5 amps and it displays “0” until the input or output current is almost one amp.On the plus side it is a pretty colorful display, was easy to install, and may be more accurate in higher current applications.

I have several Eco Worthy products I love, so I thought this would be a home run. It's going into the scrap pile.I had a low cost meter for my portable solar system. It worked great and was very accurate but could only read discharge, not charge and lacked some other features I wanted so I tried this: Big mistake. It's basically worthless.The pro side is that the screen looks fantastic and the Hall sensor means I can pass multiple wires though and don't have to cut them. that is the only good things. I wish this worked, but it will be either returned or sold at a ham fest.1) While the voltage side is fairly accurate the current side is over 10% off. I verified it with other clamp meters and in line meters and a Fluke 289 meter which were all in agreement. The EcoWorthy was >10% off. The "correction" adjustments in the screen did not work and just made an offset, not a correction. Below 5 amps draw it seems to not really work at all.2) The resolution is poor. Only 100mV and 200mA resolution making it hard to use for low current times. My other low cost unit is 10mV and 10mA resolution or 10-20x better resolution.3) The manual is very confusing, incomplete and not all features or buttons are explained. In addition i found many errors. The measurements for the window are too far off to use (measure the opening, don't use the manual spec). The quiescent current (about 60mA draw and 5mA off) did not match the 0.5mm off and 110mA on the manual stated. Several buttons on the config menu that are not explained in the manual and I have no idea what they do.4) It keeps losing its configuration settings. Yes I hit save, but I keep coming back and it has erases itself. Especially after a power down. It may be that you have to hit save for a long time to work as the last time I held the save button for 10 seconds and it seems to have survived a power cycle this time.5) No W/H usage log. Even my $15 cheap unit has this,6) the percent full graph is not even in the ball park. 13.7V on my LiFEPo4 battery and it says 3%7) no way to clear or change setting like the options password or anything it has logged.to the person complaining about 2 voltage wires. This is needed to make the voltage reading accurate. One set of wires is to power the unit, the other to sense the voltage. If you try to read the voltage down the power wire you will get error. So no a better design won't have less wires. This is probably why the voltage sense is actually fairly accurate.

The best feature is the large, easy-to-read display. I have two batteries I need to monitor so I purchased two of these. I ended up returning one because it just did not work properly.Positives:1) Large Easy-to-read display.2) Looks nice.Negatives:1) Difficult to program. The interface for setting parameters is very buggy and not ready for prime time. Plus, it requires a password, which cannot be changed, every time you want to access the parameters. This makes it a tedious process to make adjustments.2) Limited parameters. There is no feature to adjust for losses in charging and discharging. The meter is simply a coulomb counter. It will indicate the battery is fully charged before it actually reaches full change due to losses, however small, in the charging cycle.3) Poor design. Both the hall sensor and the meter must be wired to battery power, with separate cables. This requires two cables going from the sensor to the display, one for power and one for data. A properly designed unit would have the power in the data cable, eliminating the need for two cables.