【Size】 115mm (height) × 81mm (width) × 45mm (thick) 

[Power supply] 1 5 batteries 

【Material】 metal housing 

[Color] Silver Copper 

[Package] white carton 

[Function] 

1， clear and concise Arabic numerals; 

2， the alarm ringing， guaranteed to wake you up; 

3， you can open the backlight， yellow; 

4 seconds to scan， there is no sound.