GPS car Speed limit warning device (round)

-The best under servant when you drive a car, it is a speed camera location warning device that uses satellite GPS technology to pin point your speed and location, and compare it with its onboard database of fixed site speed cameras.
It warns you via its LED display as you are approaching a speed camera or if you are over the speed limit in that particular location.
It is designed to raise your awareness of dangerous traffic zones and encourage caution, so helping you to be a safer rider
It''s not a radar detector and is legal to use.

GPS receiver: SiRF, 12 channels capable of tracking 12 satellites simultaneously.
Average acquisition time*: Initialization: ~3 mn, 38 s when cold and 8 s after warming up.
Update time: 1.1 seconds.
Accuracy: Position 10 meters (10.9 yards) RMS speed < 1 Km/h (0.62 mph).
Processor: RISC 32 bits ARM7 at 50MHz.
Memory: Processor 128Kb RAMS 8Mb.
Antenna: Active internal with connector for optional active external.
Alarms: Audible and visual.
Power supply: Cigar lighter adapter: Input: 12/24V DC, Output:
5V DC 850 mA.
Dimensions: Net: 70mm diameter x 22mm high.
Weight: Net: 200 grammas.
Quality Certificate：CE，EMARK
contact:lorry.xie at