Automobile Electronic Voltage Thermometer 1. LED clock, voltage of automotive battery ,temperature are displayed on the same screen 2. Temperature measuring Scope: -30 -80 Celsius degree 3. Temperature displaying resolution : 1 Celsius degree 4. Sample period for temperature measuring : 1 Celsius degree 5. Testing scope of the voltage of automotice battery: DC9-30V,apply to automobile type DC 12V24V 6. USB charging port is provided ,output voltage DC 5.0V, maximum output current 2.1A Button Operation: 1.Hour button: press Hour button for 2 seconds, the figure representing hour blinks, then press UP or Down Button to adjust hours, then press Hour button to finish hour setting and exit. 2. Min Button: Press Min button for 2 seconds,the figure representing minute blinks, the press UP or DOWN button to adjust minutes, then press Min button to finish minute setting and exit. 3. UP button: Up-regulation button, operated with hour and minute button. 4. DOWN Button:Down-regulation button , operated with hour and minter button