Sunpro CP7994 Triple Gauge Kit Designed for negative ground systems Blue-line styling with black 2-in face and white digits Includes gauge, mounting hardware, and 72-in capillary tubing with 5/8-in national pipe thread and 1/4-in, 3/8-in, and 1/2-in adaptors Monitors battery and charging circuit operation systems Kit includes an electrical voltmeter, mechanical oil pressure gauge, and mechanical oil/water temperature gauge