Review on 🔌 DROK Digital Multimeter DC Power Monitor, 6.5-100V 20A Voltage Amperage Power Energy Meter with Built-in Shunt, LCD Digital Display Volt Amp Tester Gauge by Zachary Cha

The meter works as advertised and for the price it is excellent value. Note that the ammeter is on the negative side between DC IN- and Load-. This is important if, like me, you're using a switch to reverse the polarity of the meter between charging and discharging the battery. The electricity meter does not work in reverse. In other words, the count only increases when positive current flows in the direction of DC IN+ to Load+. The current flows in the other direction, but the power and current meters do not show negative values, and the watt-hour meter does not decrease. To use the meter to control the power from the solar panel to the battery, I connect the solar panel to the DC IN + and DC IN - terminals, and the battery itself to the Load + and Load - terminals. When the battery is discharged into the intended load, I reconnect the meter (with a switch) to its usual connector topology. Since the ammeter is on the negative side, DC IN+ and Load+ are connected together in the block. In other words, they are the same knot. The device mounts in a square hole in 0.032 inch thick stock. I used a thin layer of silicone glue around the bezel to reinforce this mechanical connection. can be confusing and cause damage if you're not careful. They are stuck, so to connect the cable, first loosen the clamp by turning the screw counter-clockwise a few turns, insert the cable into the newly opened gap, and then tighten the screw clockwise I Make sure Make sure the terminal block accepts 12 gauge wire.