SSI TECHNOLOGIES MG-9V Series Media Gauge Digital Pressure Gauge Sensor with LCD Display, 5000psig Operating Pressure, 9V, 0.25% Accuracy, 1/4-18 NPT Male Process Connector Type Chemical Compatibilities: Any gas or liquid compatible with 304L and 316L stainless steel. For example, Motor Oil, Diesel, Hydraulic fluid. Brake Fluid, Water*, Waste Water. Hydrogen, Nitrogen, and Air. LCD Display Battery Saver Mode MG-9V automatically powers down after 5 minutes The MediaGauge models differ in accuracy, media isolation, user functions and output capabilities A MediaGauge digital pressure gauge is ideal for use in many applications such as Refrigeration, Process Control, Fuel Cells, Pumps, Hydraulics, Pneumatics, Compressors and Agriculture