A low power 7 segment LED thermometer for use between -50°C and 115°C.
 
These low-cost thermometers are very easy to install by simply cutting an appropriate sized opening, connecting the power wire to 12V, and placing the supplied thermocouple right where you want to measure temperature. 
 
500ms refresh rate
 
Multiple colour options available:
Red:  P2200
Blue:  P2304