This is the Traxxas On-Board Temperature Gauge.  Great for monitoring engine temperature during operation, which could easily pay itself off in longer engine life.  This will also help you get more performance out of your engine.

FEATURES:
Loop probe end which can be used on most any engine
Large LCD screen
On/Off button for longer battery life
Reads in Celsius and Fahrenheit
RECALL button for highest temperature
Clear splashguard for protection

INCLUDES:
One On-Board Temperature Gauge
One clear splashguard
One small piece of double-sided mounting tape
One instruction sheet
One small decal sheet

SPECS:
Case Length:  46mm  (1.8")
Case Width: 22mm  (.86")
Case Height: 11mm  (.45")
Probe Wire Lead Length: 229mm   (9")