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Index Temperature Sensors

Index Heavy-Duty Temperature Sensors are a leading manufacturer of switches, sensors, and controls for the commercial truck, engine, agricultural, off-road, and industrial equipment markets. Our products monitor, control, and protect some of the world's toughest equipment.


Index Sensors manufacturing facility & headquarters are located in Arlington, Washington 45 miles north of Seattle on the I-5 corridor. The facility was designed to support Index’s advanced engineering, quality labs, world-class manufacturing processes, and flexible layout.

Quality USA Made Products


Index Sensors - Catalog