Pressure indicators from Clippard is suitable to be used with only air. The input pressure that is allowed in the device can be between the range 1 - 10 bar. Minimum - actuation pressure associated with the device is approximately 15 psig. The device can take approximately 10 milliseconds as response time at 50 psig. Filtration of the device can be 40 microns. The panel of the device is mounted in hole along with lockwasher and nut.