Vandalprooof IR Dome Camera SONYSUPER HAD CCD Ⅱ 420TVL SONY3142DSP+643CCD

Ref Price:: $20.70 / pc

Loading Port:: Shenzhen

Payment Terms:: TT

Min Order Qty:: 5 Pcs pc

Supply Capability:: 20000 Pcs Per Month pc/month

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Vandalprooof IR Dome Camera S-70
1/4"SONY SUPER HAD CCD Ⅱ 420TVL Sony 3142DSP+643CCD IR

Distance：30M
1pcs 850nm Ⅲ Smart Leds
Size:140mm*110mm
Lens：4、6、8、12、16MM
Dual Glass

Q: Buy monitor camera attention to what: The two contrast, so in the past we generally will be 480 lines of the camera called high-definition camera. In recent years, with the improvement of production technology, DSP processing can achieve 7MH high-pass filter, so that the level of resolution to 520 lines or so, therefore, there is a further high-definition camera products, that is 520 lines or 540 lines. But in fact the image clarity in the camera to achieve, in addition to the use of CCD technical indicators, the back-end signal processing technology such as hook circuit, contrast, color reproduction, signal to noise ratio, the installation of the lens and focus is accurate And so on factors, can affect the image clarity. The same product, the business line to 520 called high-definition camera products

Q: Monitor the camera from the appearance of how to distinguish is not infrared: Many users in the purchase of infrared surveillance cameras will encounter how to distinguish between the infrared function of this problem. Here, we provide a way for everyone, hoping to help you solve this problem.

Q: Wireless micro-surveillance camera how to see what to shoot: First of all to distinguish between which type of wireless micro-surveillance camera, is with memory or no memory.

Q: 20 meters away with the number of mm monitor camera lens appropriate?: 1/4 "CCD lens in the line of sight with 1/3" CCD no difference, but the angle will be more narrow, while the shooting of the object will appear taller.

Q: What is the maximum visual range of a video surveillance camera?: Camera monitoring to its monitoring range is no dead!

Q: Outdoor surveillance camera what brand good ah: Sony, Hikvision, Dahua, heaven and earth Albert, Rongtian as, Ya, as Xin, and so on. Each brand has high-end and low-end products, different applications, the corresponding products are also different.

Q: What is the effective range of infrared surveillance cameras?: Infrared probe about 3 meters to 12 meters between ~ ~ some special except to see the main object of the strong degree of reflex is not strong.

Q: Monitor the camera often flashing why: Video head problems, poor contact performance. The video head to try again.

Q: Infrared surveillance camera at night (no light) no picture and flash is how the matter: Check the time, pick the evening when people come close to the camera from the place to see if the infrared light is not activated, if the start, the infrared light will have a very weak red visible light is always bright. If there is no red visible light or not always bright, it can be basically the problem of infrared light. Of course, you also need to check whether the power is normal, if the voltage is low or the current is too small, it may cause the infrared light does not work.

Q: I would like to ask how the video surveillance camera is powered?: You are right, video surveillance cameras used to make a signal with a coaxial line, and then another line when the power supply, but the two lines can also be a line to achieve. That is to use control Because the control line is a double core, with a shield, we can put the video ground, and the power of the negative line, together, sharing a line, that is, the control line of the shield, and then Inside the two core, one when the video signal is positive, one when the power is positive. This can, but if the distance is very long, it is recommended not to do so, because of this, the signal shielding will be a little interference.

We are specializing in the manufacture of cctv cameras,color ccd cameras,B/W ccd cameras,color Dome cameras,B/W Dome cameras,Mini ccd cameras,Day/night ccd cameras,high speed cameras, Flying Sauce Cameras,wireless CMOS cameras,DVR ,DVR Board ,all-in-one camera,IP camera and lens and other safety protection video products

1. Manufacturer Overview

Location	Shenzhen,China
Year Established	1993
Annual Output Value
Main Markets	China; Mid East；Western Europe
Company Certifications

2. Manufacturer Certificates

a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability

a) Trade Capacity
Nearest Port	Shenzhen
Export Percentage
No.of Employees in Trade Department	50 People
Language Spoken:	Chinese
b) Factory Information
Factory Size:	About 5,000 square meters
No. of Production Lines	About 20
Contract Manufacturing	OEM Service Offered；Design Service Offered
Product Price Range	Cheap， professional