Case: shockproof ABS  (M50RP M50PP) or  AISI 304 stainless steel (M50SM M50FM).
Glass: shatterproof methacrylate.
Fitting: brass.
Standard thread: 1/8" G (BSP) - 1/8" GC (BSPT) - 1/8" NPT - 1/4" G (BSP) - 1/4" GC (BSPT) - 1/4" NPT. Different threads on request.
Pressure-sensitive component: copper alloy C-shaped Bourdon spring for pressures up to 40 bars; phosphor bronze spiral from 60 bars upwards.
Mechanism: high-sensitivity made of timepiece brass.
Solder joints: tin alloy up to 40 bars; silver alloy from 60 bars upwards.
Dial: screen-printed on stove-enamelled aluminium. Special screen-printing on request.
Accuracy: class 1,6 - 2,5.

STANDARD SCALES: -1/0 - 0/1 - 0/1.6 - 0/2.5 - 0/4 - 0/6 - 0/10 - 0/16 - 0/25 and also, for models M50SM and M50FM only, 0/40 - 0/60 - 0/100 - 0/160 - 0/250 - 0/400. Other scales on request.