Looking for range finder with upto 5km

I am looking for a range finder that can sense ranges up to 2-5km. I have seen some in Alibaba but those are combined with the camera. I am looking for a stand-alone option.

I have found one from ultisense.safran-vectronix Model- LRF 3013 –
Laser Rangefinder but not able to find any buying leads.

Please suggest something if you guys have any leads regarding this.