AHD PTZ Bullet Camera: This BY-AHD720PTZVF4 is a 720P AHD PTZ bullet camera,Website:http://www.byvisiontech. ... RS-485 controller joystick, or a Hybrid HD DVR. PTZ Security Cameras, in general, are a beneficial solution for surveillance of any location ... , trains stations, Bridges , Car dealerships, Municipal ,Garages, Construction sites, Factories ,Schools etc. 1.720P 4X Zoom Lens 2.Night Vision: 4pcs ...