Yes, VERNIERS is a Scrabble word!

Letter values in Scrabble US: V 4, E 1, R 1, N 1, I 1, E 1, R 1, S 1.

Is it a valid word?

VERNIERS is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

French mathematician who described the vernier scale (1580-1637)
a small movable scale that slides along a main scale; the small scale is calibrated to indicate fractional divisions of the main scale

Also: paul vernier, vernier scale.