Application
The contractor's gauge is designed for a wide variety of industrial applications, but is especially suited for heating and air conditioning systems. Rugged gauge case is made of stainless steel to provide the protection needed in corrosive atmospheres.
Size
4.5"
Accuracy
±2.5% of Span (Grade B ANSI B40.1)
Ranges
30"Hg and above 15psi up to 3000psi
Or other equivalent units of pressure or vacuum range.
Operating Temperature
Ambient:  -4℉ to 140℉ (-20℃ to 60℃)
Media:  Max. 158℉ (+70℃)

Connection
Material: Copper Alloy
Lower mount (LM)
Bourdon Tube
Material: Copper alloy
Movement
Brass
Dial
Gavalume steel, white background with black markings
Pointer
Aluminum, black finish
Case
Drawn stainless steel 
Window
Flat polycarbonate

Specification Chart1