1. Black/White or Colour?
Colour cameras used to be very expensive however with the advances in technology, colour cameras is now the de facto standards. B/W cameras yields better resolution particular in the dark and would be better for applications with low lights condition.
2. What basic equipment is needed?
Cameras, Digital Video Recorder (DVR), RG59U coaxial cables, BNC connectors, 12Vdc Power adaptors
3. What kind of cameras do I need?
Depending on your application, there is a wide range of cameras that you can consider. Dome cameras are ideal for indoor use and normally mounted on the ceiling. Infra Red, normally for outdoor, though may be used for indoor particularly when you want to be able to view and record even in pitch dark. Hence it is commonly used for warehouse and store rooms. Box body cameras with lens can be used both for outdoor and indoor. Commonly used to view car park and perimeter, the day/night version allows visibility under low light condition. Indoor use tend to be over cashier counters as the lens can be adjusted to zoom in the cashier register.
4. Should I use Hidden Cameras?
Only under exceptional conditions. One of the advantage of having a CCTV System is that it is a good crime deterrent. With a hidden camera, there can be no deterrent and even if you catch the culprit red handed complete with the video evidence, there is the issue of privacy infringement and the loss of morale, particularly among other employees.
5. Are wireless cameras good?
Wireless cameras should be considered only as a last resort where it is not possible to run a video cable to the Digital Video Recorder. Wireless transmission is often affected by external environmental factors including the weather that it can prove unreliable and frustrating.
6. When should I use Infra-Red Cameras?
For indoor application where there is no or very low light but you want to be able to view or record. Thus it is often used for warehouses, store rooms, server rooms where the lights are turned off. For outdoor, at car porches, veranda, corridor, passage ways and balconies.
7. What is the ideal angle for a lens to cover?
As cameras are normally installed at corners,the ideal angle should be 90 degrees. Most cameras come with a 3.6 mm lens which gives you close to 90 degrees coverage. Of course if you need wider coverage, you can select 2.5 mm lens which should give you 100 degrees viewing angle.
8. What about vari-focal lens?
Varifocal lens are normally used with box body cameras. This lens have a range of focal len which you can manually adjust to zoom in or zoom out. Typical lens are 28 to 8, 2.8 to 12, 2.8 to 50 mm.
9. When do I use Pan/Tilt/Zoom cameras?
Pan/Tilt/Zoom cameras are much more expensive and hence not commonly used for office or home application. Typically used for perimeter surveillance, it is part of the arsenal used by security guards to help protect the facilities.
10. Do I need to use CCTV Monitor? Can I just use my TV?
CCTV monitors are specifically designed for 24 hours round the clock operations and thus are more rugged and typically used with 24 hour surveillance application. For normal home and office usage where you do not have people monitoring the screen 24 hours a day, a normal TV will do.
11. Can I just link a camera to my TV?
You can link a camera directly to the video input of your TV directly if you want to only monitor without recording.
12. How do I record the videos?
To record, you will need to connect your cameras to either video recorder or a Digital Video Recorder.
13. What is a Digital Video Recorder (DVR)?
A digital video recorder records the videos on a hard disk. This is the de facto method, fast replacing the old video recorders that uses the video tapes.
14. Which is better? An embedded DVR or a PC-based DVR?
Both embedded DVR and PC-Based DVR has its unique advantages. The key to selection depends on you. If you are looking at installing a system that you can once setup forget about it, the embedded DVR is the way to go as it is easy to operate and like your DVD player, once set up, you can forget about it. THe PC-Based DVR while more powerful and hence more expensive, require you to be more computer literate and to perform routine maintenance such as disk de fragmentation.
15. How do I view on my computer?
To view the DVR on your computer or laptop, you will need to connect the DVR to your router. Once in, you can view using your internet browser by typing http://192.168.1.10. This is the default IP address we set for the DVR. Your IP address for the DVR may be different.
16. Can I view over the internet?
Yes. Once you link the DVR to your internet router/modem, you can access your DVR remotely over the internet.
17. What do I need if I want to view over the internet?
You will need to subscribe to an unlimited broadband plan from a local internet provider like Singnet or Starhub. With a suitable router/modem (we recommend a Linksys router) and a free ddns account from http://www.dyndns.org, you are all set to view remotely.
18. Would the cabling be messy?
Cables are inevitable but mess is not. Where possible, we hide the cables above ceiling or search out routes that minimise the exposure.
19. How much would it cost?
For 4 cameras, a DVR and installation, the cost can vary from $1600 - $1980. Check out our Promotions.
20. Would it be an infringement of privacy?
Generally no unless you are installing in toilets or bedrooms.