American Volt 104-230'F digital adjustable automotive engine electric radiator fan thermostat switch wire kit. 1/8, 1/4, 3/8, 1/2 inch NPT threaded temperature sensor for any port. 40 amp relay harness with 14AWG wire powers up to 2 electric fans. This fan switch kit is compatible with either 12 or 24 volt applications. Maximum 30 amp continuous draw with 30 amp in-line fuse per fan. A/C override or manual toggle switch wire built directly into harness. Optional second fan starts 10 seconds after first fan begins cooling. Installation instructions, wiring diagram and components included.