1 display mode： 2-digit LED display(optionally)
2 power supply：90-220V
3 working voltage：12V ，working current：<1.5A ， measurement range from：1-99km/h
LED size is 70x36 cm, frame size is 90x70x24 cm.
4 speed limit display：display for the green Numbers within safe speed and red Numbers
if speed limit is exceeded.
5 application：urban rapid road，highway，Suburban cables，speed limit road such as
Authority & universities.
6 for three or four lanes at the same time.。
LED display feature：
LED：5mm diameter，lifetime: one hundred thousand hours
LED color：red & green，the brightness of single red lamp: 6000-8000mcd , angle 25°
the brightness of single green lamp: 13000-15000mcd，angle 35°
Display uses 7 yards of paragraphs, each stroke period of red and green leds 30, high brightness which can be clearly seen from 1000 meters.