Electric Water Temperature Gauge;100 - 260 Deg. F;8 ft. Tubing Or Wiring Harness; California Residents: WARNING Engines do not like high water temperatures, Heat is the enemy of performance and reliability. Keep tabs on your temps with the most accurate, quickest responding water temperature gauge on the market. Auto Meters advanced 1/8 inch NPT temperature transducer is included as well as a direct plug in wiring harness for ease of installation.