Features:
Dimensions: 4” x 3”
Activates nitrous or any other device needed at a preset RPM from an on-board user programmable switch
Programmable tachometer display that can be set to 1, 2, 4, 6, 8, 10, and 12-cylinder engines. 
Note: Diesel engines will require a separate tach adapter to get correct readings.
Max RPM of 9,999
Three (3) Switch Modes 
Mode 1: User sets one RPM limit. When RPM reaches set limit, switch activates. When RPM drops below set limit, switch deactivates. 
Mode 2: User sets a low and a high RPM limit. If vehicle’s RPM is within those limits, switch activates. If vehicle’s RPM is outside set limits, switch deactivates. 
Mode 3: Same as mode 2, except once vehicle’s RPM goes over the high limit the switch will not reset until the RPMs fall below the set low limit. 
Can use as a normally open (off) or a normally closed (on) switch 
Auto Night Dim.