Vacuum Gauge -30*Hg & -1/0 Bar 40mm Dial 1/8 BSPT back connection. 2.5%
Brass Connection 1/8 BSPT Back (approx. Range 0/-30"Hg Dual Scaled 0/-1 Bar. VACUUM GAUGE. Accuracy Class (2.5) on Dial. Block Screwed to case (not glued). Maximum Process Temperature 60 C. Full Technical Support. ).