Origin	China
Brand Name	DONAR

Speed Display Sign from Ningbo Donar Technology Co., Ltd. is a kind of monomeric radar speed instrument with excellent performance and comprehensive function.

Speed Display Sign can measure and show the radial speed for the ground movable targets on the basis of “DOPPLER” theory. It can show the measure results to the drivers automatically and advise them not to overspeed when the vehicles are passing through. It can advise the drivers to control speed and drive safely to put speed display sign where the accident happens often and speed limit needed.

We have two kinds of speed display sign with simple assembly and easy operation: general type and portable type, both of them can be used on road, railway, airport, mine, enterprise, school and hospital, etc.

Speed Display Sign’s radar works in pulse way, the advantages for pulse way are: low radiancy, low power consumption and anti-radar prevention, as well, radar’s susceptivity can be adjusted according to road and vehicle’s situation.

Speed Display Sign can tell the close and distant of moving targets when it is still, it can show the fastest or the closest speed, you can choose one above mentioned.

Our speed display sign have built-in calendar, time and circuit. You can turn on or turn off speed display sign’s radar and set maximum or minimum speed according to time. There are many outer external for speed display sign, such as extended yellow flash joint. You can choose GSM or GPRS to realize remote distance control.

Our speed display sign owns strong software, easy operation and excellent performance, the quality meets or exceeds 3M-DFS700, etc from abroad.