SMi™ Stepper motor techometers use a small electric motor to drive the pointer. It is more precise than the more common 'aircore' instruments whose accuracy can be affected by the windings. Many professional race teams - NASCAR™, etc. are switching to this style of tach for the improved accuracy and response (see the in-car TV cameras).
Maximum RPM recall - Just push the Recall button
High RPM Warning light - 2 stage - First warning can be set for just over your normal maximum RPM, the second stage at the redline. You get a warning of too many revs before you blow an engine. Can also be used as a 2 stage shift light.
LED back light - Back light shows through the dial face PLUS the pointer is LED illuminated to make this the easiest tach to read - and super sharp looking too
Stepper motor precision tach at an affordable price
**NOTE: This electronic tachometer is not intended to be waterproof. Cover the tach if the car interior is to be washed down.** Pit Stop USA offers Longacre SMI Tach Warning LT and LED BKLT 4-1/2in at low everyday prices. Be sure to check out all of our products from Longacre Racing Products including Longacre Racing Products Analog Gauges. Product Description:Tachometer, AccuTech SMi, 10000 RPM, Analog, 4-1/2 in Diameter, Black Face, Warning Light, Each Product Description: Tachometer, AccuTech SMi, 10000 RPM, Analog, 4-1/2" Diameter, Black Face, Warning Light , Gauges and Accessories, Individual Gauges, Analog Gauges