ZSE80, 2-Color Display Digital Pressure Switch for Vacuum; This product is being discontinued and will be replaced by ZSE20 series.; Stainless steel construction.; New pressure ranges have been added from 0 to -101 kPa.; 2-colour display LCD (red and green).; Low leakage type available as an option.; Rear and bottom piping available as standard options.; Water hammer protection provided.; Analogue current output option added.; Rated Pressure Range: 80F (-100 to 100 kPa); Piping: N02L (NPT1/4, M5 Female, Bottom Ported); Input/Output: A (NPN Open Collector 2 Outputs); Option 1: W/Unit Display Switching Function; Option 2: A (w/Bracket Rear or Bottom Ported); Option 3: Operating Manual Booklet; X Options: None