I have just bought a digital scale that shows either grams or ounces.
My Exo3 93 is 345g strung, which seems about right if you factor a standard 15g for strings onto the 330g unstrung weight. And my old Prince Pro 110 is a hefty 372g. That one will sit in my collection of vintage rackets.
All I would say is, go digital. But it doesnt need to be anything state of the art.
"Tennis is just chess with balls."
Prince Classic Graphite 100, Prince Exo3 Graphite 93...who knows...who cares.