The HPI Temp Gun is a non-contact infrared thermometer for measuring temperature, perfect for RC nitro and electric racers. Our team drivers use it as a serious diagnostic tool to tune their nitro engines and electric motors for maximum performance. It can also be used to optimize the handling of race cars by checking tire and track surface temperatures. The result: Faster lap times and extended engine life! Features include an easy to read large LCD readout, ergonomic gun shaped design, quick point-and-click temperature detection, auto-shut-off mode for long battery life, and instant Fahrenheit to Celsius conversion for extra versatility.