This product is a genuine Traxxas temperature and voltage sensor designed to work with the Traxxas telemetry system for real-time monitoring of vehicle electronics. It allows users to track both operating temperature and battery voltage to help prevent overheating and over-discharge during use. The sensor provides accurate data for improved performance tuning and protection of critical components. It is compatible with telemetry-enabled Traxxas models including Slash 4x4 VXL, Rustler 4x4 VXL, Stampede 4x4 VXL, Hoss 4x4, and E-Revo VXL 2.0 when used with the appropriate telemetry receiver. It is an ideal replacement or upgrade for restoring full telemetry functionality.