THESE SPECIALTY ENGINE OVERHEAT WATER TEMPERATURE SENSORS ARE MADE FROM PREMIUM MATERIALS AND ARE USED IN HIGH PERFORMANCE APPLICATIONS. NORMALLY OPEN & GROUNDS WHEN ENGINE APPROACHED DANGEROUS TEMPERATURES. CONNECT TO DASH LIGHT–AUDIBLE BUZZER OR OTHER. STANDARD OEM SENSORS ARE AVAILABLE UPON REQUEST. PLEASE CALL FOR MORE INFO. 805-376-6077 M-F 9-4 PST.