CASE: Stainless steel.
RING: Crimped Stainless steel.
LENS: Acrylic.
DIAL: Aluminum, white finished with black markings.
POINTER: Aluminum, black, non-adjustable.
MOVEMENT: Brass with precision-milled teeth.
TUBE: Brass.
SOCKET: Brass.
CONNECTION: See below table.
ACCURACY: ±3-2-3% (ASME B40.100 Grade B)
PROCESS TEMPERATURE: 0 to 140°F (-18 to 60°C).
AMBIENT TEMPERATURE: 0 to 140°F (-18 to 60°C)