differential pressure manometer; body AISI 316L/AISI 316Ti; measuring unit, motion work AISI 316Ti; front glass laminated safety glass; ambient temperature -20...+60°C; medium temperature max. +100°C; parallel connection 1/2"NPT below; class 1,6; diameter 160mm; indicating range 0-1 bar; area: Gas zone 1 / dust area 21 (II 2G Ex h IIC T6 ... T1 Gb X / II 2D Ex h IIIC T85 °C … T450°C Db X)