- Model: EC30<br>- Test temperature inside or outside of car<br>- Screen color: backlit orange or blue (selectable with the switch on the left side)<br>- Clock display: 12 or 24 hour<br>- Indoor temperature range: -20＜C - +70＜C<br>- Outdoor temperature range: -50＜C - +70＜C<br>- Inspect and display real time automobile storage battery voltage<br>- Clock、 temperature display powered by one AG13 batteries (included)<br>- Alarm voice and lamp will turn on as voltage icon shows excessive or too low<br>- Has back stand and Velcro strip for choice of attachment<br>- 12V / 24V input<br>- Backlight、 Voltage display powered by cigarette lighter charger (included、 length: 140cm)<br>                                                                                                                                Dimensions: 5.31 in x 1.34 in x 0.87 in (13.5 cm x 3.4 cm x 2.2 cm)<br />Weight: 6.38 oz (181 g)