Air Temp Sensor 37880-RE1-Z01 - Overview. The Honda Air Temp Sensor 37880-RE1-Z01 is an essential component in Honda marine engine systems. This sensor measures the ambient air temperature, a critical factor for the engine's control system to optimize fuel combustion and emissions. By monitoring air temperature accurately, the sensor supports optimal engine performance, fuel efficiency, and reduced emissions, ensuring your engine runs smoothly in various marine conditions. Engineered to integrat