VACUUM MANOMETER (PRESSURE INDICATORS); PRESSURE RANGE: 0-210 B AR; THREAD DIAMETER: NPT 1/4 IN; CASE DIAMETER: 2-1/2 IN; CONNECTION TYPE: LOWER; HERMETIC MANOMETER, SUITABLE FOR OUTDOOR USE WITH A REINFORCED MECHANISM, COMPLETELY MANUFACTURED IN AISI 304 OR 316 STAINLESS STEEL. BOURDON SYSTEM, IN GLYCERINE BATH. COMBINED SCALE, GRADUATED IN KGF/CM2 AND LBF/IN2, GLASS OR PLEXIGLAS VIEWER. ERR