Analog panel meters are not as blingy as LEDs but they add a touch of elegance and are easier to read quickly.This one is fairly large and is easy to open up the front with two screws and replace the gauge. There's a 'zero adjust' as well. The back has four 3mm (4-40) screws, 6.5cm apart, so its easy to attach to a box or enclosureSize: 3.125" (8 cm) square, 1.25" thick (the panel is 0.5", the coil sticks out another 0.75")Measures: This panel is 0-50uA which means it can be used with any kind of power...