Traxxas Temperature Sensor Vehicle Auto-detectable temperature sensor Requires #6550 telemetry expander (will not work with receiver alone) Provides real-time temperature telemetry to your smartphone when using the #6511 wireless module and Traxxas TQi radio This product is made from high quality materials and designed for long-lasting performance LiPo batteries max out the potential of 1/10 scale vehicles like Slash, E-Revo, Summit, Spartan, and M41 with powerful acceleration and long run times