AutoMeter Accessories Electronic Snubber Noise Filter (P13149)

Electric noise filter for Spek-Pro tachometers.

Features:

• Limits voltage spikes above +16 VDC and all negative voltage below (-) ground caused by inductive loads such as battery changeover switch, starter solenoids, fan motors, etc
• Negative counter (EMF spikes) will be filtered to ground
• Provides over voltage protection circuit for automotive load dump