Longacre Accutech SMI Water Temperature Gauge

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Stepper-Motor style Water Temperature gauge reads from 100°-280° F.


Longacre's innovative Accutech SMi gauge is a 2-5/8" Stepper-Motor-style gauge that uses a small electronic motor that turns a fraction of a rotation to drive the pointer. Much more precise then traditional mechanical gauges, many pro-racing teams are switching to Stepper-Motor gauges to improve accuracy. The gauges include ultra bright LED warning lights that are easily set by the user and include 2 total set-points to make sure you notice problems before they become disastrous. The kit includes everything necessary for installation - heavily insulated wiring, soldered/heat-shrinked terminals, lights, and senders. Water Temperature gauge reads from 100°-280° F.

Watch a short video from Longacre on this gauge:

Technical Information

Part Number: LONG46545
Manufacturer: 46545

• 2-5/8" gauge withmolded polycarbonate/ABS case
• Included electronic sensor drives the gauge - no oil or fuel in the driver’s compartment for safety.
• Easy-to-Read thru-the-dial LED backlights and an illuminated pointer
• Self testing - Pointers swing full scale and all LEDs light up when car is started
• Can be used with 12 & 16 Volt negative ground systems

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Longacre Accutech SMI Water Temperature Gauge

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Availability: In stock