Pressure gauges which have been calibrated to display the pressure over a negative and positive measurement range.
DS200P Sanitary Low Range Pressure Gauge, Switch and Sensor
LEX1 (Ei) High Accuracy Digital Pressure Gauge
LEO3 Current or Digital Output Pressure Gauge
LEO1 (Ei) Digital Pressure Gauge
LEO 2 (Ei) Digital Manometer
DS200 Combined Pressure Switch, Gauge and Sensor
ECO1 / ECO 1 Ei / ECO 2 Low Cost Digital Manometer