Running Current <80mA. Monitoring battery & electrical system. Current Range depend on the size of shunt [1]. Size of mounting hole 76mm(L)×39.5mm(W). [1] For example, shunt size 100A, current range -100A~+100A.
I was a bit skeptical when I placed the order for this item coming from China and all. The Meter arrived in very good time and works very well. I needed to monitor the DC current to and from a solar powered battery, both plus and minus flow. This meter does exactly that with a nice bright display. You have to also order the separate power adapter and the meter must mount in a exact sized rectangular opening in some kind of thin material panel. I made one from aluminum with a nibbling tool and added some mounting holes to install it in a larger panel. Download and print the wiring diagram when you place your order because the unit will probably not include one. If you can deal with these issues, this is a fine meter.