Help with HV divider

[Finn Hammer]

Common ground is fine for voltage and current, where you can tailor the output towards full scale. But with 65mA in the gound led, it will build up a measurement error at the end of a cable extension, for example to a remote operating station, where 1.5 ohm will shift the reading with 0.1 volts.
In the case that the metering part of PM-1029A is indeed floating, this makes it particularly attractive for monitoring a Baratron, and the analogue output from a 901P, because the high led display current will have its own ground return path, separate from the metering connections.
I would have expected the LCD version to draw less current, but the datasheet quotes 65mA for that as well.

Edit: my error, the LCD version indeed only draws 1mA, and has 100M input resistance, fabulous!

The high input resistance, the ability to read negative, and to place the decial dot where it is desired, places this panel meter i a class of its own, and separates it from the current offerings on Ebay.