La description

Product features:  
 
(1). Function: limiting speed.  
(2). Speed range: *0 to **0km/h.  
(3) .Speed limit deviation:   1km/h.
(4). The operating voltage range of the products: ***8V.
(5). Application temperature:**5  to *0 .
(6). Rated power consumption 2W.
(7). Apply to all kind of vehicle
  
2.Technical parameters
 
1.Application temperature:**5  to **0 , relative humidity is not more than *0%  
   should be able to work properly.  
2.Speed range: *0 to **0km/h.  
3.Speed limit deviation:   1km/h  
4.The operating voltage range of the products: ***8V
5.Low temperature resistance:**0
6.Temperature resistance: + *5
7.Vibration-resistance performance indicators: frequency ****0HZ acceleration 1g  
8.Electromagnetic compatibility: the Group of impulse voltage ***0V  
9.Rated power consumption 2W
If the driver drived the car over- speed, so many traffic accident can be happened.
So, choose NXS*3 vehicle speed limiter is your b