The NF indicators provide a two color visual indication of the presence or absence of air pressure in a system. The indicators are available in a variety of color choices as noted in the "How to Order" section. The NF series indicators are field programmable for two modes of operation. By moving a mode adjustment clip in the bottom of the unit you can set the indicator to spring return to either color or by placing in the middle position the unit is detented. In the detented mode you apply pressure to one port, the color changes, and stays in that position until the other port is pressurized and returns the indicator back to its original position.

These indicators are designed for oil tight panel applications. The rounded lens configuration provide for 180° view of indicator status. These units are easily panel mounted using the same mounting holes as standard electrical pilot lights.