AEM's Air Inlet Temperature Sensor Kits (AIT) senses the air temperature on the inlet side of the engine. 30-2014: Air Temp Sensor with 1/8" NPT Male Thread, High Performance DTM-Style Connector, Aluminum Bung, Connector & Pins30-2010: Air Temp Sensor with 3/8' NPT Male Thread, Aluminum Bung, Connector & Pins Features: Weatherproof connector Includes mating connector & pins Senses the air temperature on the inlet side of the engine 30-2014 - Air Temp Sensor Kit Accuracy: < 1.5°C / 2.7°F Operating Temp: -20C to 150C / -4F to 302F Resistive Range (Ω): See Instructions Thermal Time Constant: < 15 sec. The time required for the sensor to achieve 63.2% of its steady state value when subjected to a step change in ambient temperature [Tc=(Tf-Ti)*63.2%+Ti]. Test medium: silicone oil Sensor Body Material: Brass Thread: 1/8" NPT Hex Size: 1/2" Installation Torque: 13.5Nm / 10 ft-lbs Weight: 10g Electrical Termination: Weatherproof High Performance DTM-Style connector. Includes Mating Connector, Pins & Wire Seals Includes: Air Temp Sensor High Performance DTM-Style, 1/8" NPT Alumium Bung, Mating Connector, Pins & Wire Seals 30-2010 - Air Temp Sensor Kit Accuracy: < 1.5°C / 2.7°F Operating Temp: -40C to 135C / -40F to 275F Resistive Range (Ω): See Table Thermal Time Constant: < 15 sec. The time required for the sensor to achieve 63.2% of its steady state value when subjected to a step change in ambient temperature [Tc=(Tf-Ti)*63.2%+Ti]. Test medium: silicone oil Sensor Body Material: Brass Thread: 3/8" NPT Hex Size: 3/4" Installation Torque: 20Nm / 15 ft-lbs Weight: 33.3g Electrical Termination: Weatherproof connector. Includes Mating Connector, Pins & Wire Seals Includes: Air Temp Sensor, 3/8" NPT Alumium Bung, Mating Connector, Pins & Wire Seals