Categories
Surveillance Equipment 
- Apple Accessories
- Notebook & Tablet PC
- Mobile Phones
- Consumer Electronics
- Cars Accessories
- Office Supplies
- Home Appliances
- Health Lifestyle
- Electronic Gadgets
- Solar Energy Products
- Digital Photo Frames
- Memory Cards
- Computer Accessories
- USB Hubs
- Mini Projectors
- Pen Pointers
- Computer Speakers
- Router
- Wireless USB Adapter
- CPU Fan
- Memory
- DVD-ROM
- Graphics Card
- Motherboard
- Flat Panel Display
- USB Microphones
- 3G USB Modem
- Blank Media
- Mobile Hard Drive
- Laptop Charger
- Laptop Hand Bag
- Stereo Earphone
- Web Camera
- HDD Enclosures
- Bluetooth Dongle
- Digital TV Receiver
- Cool Parts
- PC & Notebook Accessories
- USB Flash Disk
- VOIP Skype Phone
- Wifi
- Keyboard & Mouse
- Portable Media Players
- Telescopes
- Security Equipment
- Spy Devices
- Data Cables
- Video Games
- Toys / Gifts
Information
Digital Video Recorder - CCTV Camera DVR - DVR Systems - DVR Security Camera Systems Wholesale
- Wholesale Digital Video Recorders direct from China manufacturers. For sample or small order, please purchase online. For large order, please contact us.
| Page 1 of 2 First | Prior | 1 2 | Next | Last |
- Photo
- New Wholesale Products
| Page 1 of 2 First | Prior | 1 2 | Next | Last |
A digital video recorder (DVR) or personal video recorder (PVR) is a device that records video in a digital format to a disk drive or other memory medium within a device. The term includes stand-alone set-top boxes, portable media players (PMP) and software for personal computers which enables video capture and playback to and from disk. Some consumer electronic manufacturers have started to offer televisions with DVR hardware and software built in to the television itself. It has also become the main way for CCTV companies to record their surveillance, as it provides far longer recording times than the previously used VCRs.
Digital video recorders configured for physical security applications record video signals from closed circuit television cameras(CCTV Surveillance Cameras) for detection and documentation purposes. Many are designed to record audio as well. DVRs have evolved into devices that are feature rich and provide services that exceed the simple recording of video images that was previously done through VCRs. A DVR CCTV system provides a multitude of advanced functions over VCR technology including video searches by event, time, date and camera. There is also much more control over quality and frame rate allowing disk space usage to be optimized and the DVR can also be set to overwrite the oldest security footage should the disk become full. In some DVR security systems remote access to security footage using a PC can also be achieved by connecting the DVR Spy System to a LAN network or the internet.
Security DVRs may be categorized as being either PC based or embedded. A PC based DVR's architecture is a classical personal computer with video capture cards designed to capture video images. An embedded type DVR Cards is specifically designed as a digital video recorder with its operating system and application software contained in firmware or read only memory.
Wholesale DVR Card and Wireless DVR System from China
Related Categories: Car Audio Stereo
Live Chat
Recent Orders
Subscription
Top Dropship
| |
