离岸价格
获取最新报价( Negotiable )
|Minimum Order
位置:
China
最小订单价格:
-
最小订单:
100 Piece
包装细节:
1set/carton
交货时间:
7days
供应能力:
500 Piece per Day
付款方式:
T/T, Western Union
联系人 Mr. Kolovi
ShaJin, BaoAn, Shenzhen, Guangdong
There are a variety of security cameras available on the market today. They vary with tech-nology, style, and features. Lower priced CCTV cameras often use a CMOS (Complementary Metal Oxide Semiconductor) chip whereas higher quality cameras use CCD (Charge Couple Device) chips. Cameras using CMOS technology have less light sensitivity and overall produce a much poorer image compared to cameras using CCD technology. To distinguish between CCD chips manufacturers refer to the size of the chip. You will generally see these noted as 1/4” or 1/3” and sometimes 1/2”. Typically a larger chip will produce a higher quality image. However, as technology is evolving, smaller, more affordable chips are being manufactured that produce high image quality. The style of a camera is refers to the shape and mounting options of a CCTV camera. The most common camera styles are dome, bullet, box, PTZ, and covert.
Dome cameras are becoming increasingly popular due to their ability to blend in with
their surroundings. These cameras are used in residential applications as well as public
places such as convenience stores, offices, and lobbies. Though they can be mounted to
a wall, they are usually mounted on the ceiling.
Bullet cameras are encased in cylindrical usually weather resistant housings. Their size,
cost and integrated design make them a great choice for home and outdoor installations.
Box cameras can be used with or without a housing. In most instances, they are used
with a housing and bracket unit for outdoor areas such as parking lots and entry gates.
Lenses are purchased separately offering greater flexibility.
PTZ cameras are more expensive but offer the operator more control with remote pan/
tilt/zoom. These cameras are used primarily when an operator is actively monitoring an
area and needs to manipulate the camera. They are popular in department stores,
casinos and government buildings.
Covert or Spy cameras are designed for discreet installations. They are commonly
referred to as a nanny cam. Used frequently by private investigators, they effectively
capture video without others being aware.