This is the Spektrum Nitro Sensor Package for the Spektrum telemetry systems.  This includes all of the sensors for the nitro vehicle setup.  If you need the on-board module as well, they are available separately.

Items Included:

• 1 - SPM1450 Head Temperature Sensor (1)
  
• 1 - SPM1452 RPM Sensor
  
• 1 - SPM1453 Lap Counter Sensor
  
• 1 - SPM1501 Sensor Mount Hardware (.21-.26)
  
• 1 - SPM1502 Sensor Mount Hardware (.12-.15)