Ig, the only functional difference that I'm aware of is that the data output
signals on the digital China models is different from the output of the
Mitutoyo caliper models.

Nick Meuller? developed an interface, YADRO, to connect the China data
output signals to a PC/laptop for use as a DRO display.
There are other devices that have digital LED or LCD remote displays for the
China scales, so the operator can see the displayed position without looking
at the display on the scale.

FWIW, the output signals of the most common types of lathe/mill DRO linear
encoder scales (not the ones that look like digital calipers) are TTL
squarewaves.

Many rotary encoders have the same TTL squarewave output signals.

But some manufacturers of linear and rotary encoders use output signals that
are not compatible with TTL DRO display circuitry.
Some manufacturers use magnetic properties to produce the output signals of
their encoders.

WB
..........
metalworking projects
www.kwagmire.com/metal_proj.html


"Ignoramus28941" wrote in message
...
Ed, would you, per chance, know if there is any meaningful difference
between a Mitutoyo caliper, and a Harbor Freight caliper, as far as
construction goes?