N9440-G100, 4400 Series Event Output Board

These boards are compatible with the older N series controls and indicators.  The Classic N series instruments have model numbers that start with a N.  These boards can be used to change or add functionality.  Installation instructions are included in the manual for your particular control  Most manuals can be found at: http://instrumentation-central.com/pages/temperature.htm   

 

These boards cannot be used with the newer P series controls.  For P Series compatible boards: http://www.iseincstore.com/Plus_Series_Option_Boards.aspx