Engine coolant temperature sensor, what is a temperature, Resistance temperature - tatanh1983/conchodom GitHub Wiki

MLX90614 Series 5.5 V 13.5 mA Single and Dual Zone Infra Red Thermometer - TO-39

https://www.futureelectronics.com/p/semiconductors--analog--sensors--temperature/mlx90614esf-acf-000-tu-melexis-4099248