How to choose the most suitable and cost-effective indoor outdoor security cameras? Please refer to the experience of buying surveillance cameras below that Genkz shares to choose the best for you.
Depending on the location and installation environment, the camera will have different shapes and features to suit the purpose of use as well as the environment at the installation location, such as installing cameras for families, doors, offices, factories, etc. If you know your observation needs well and make the right choices, you will be able to make the best observations with the lowest economy.
1. Clearly define the purpose of installing security cameras?
The price and quality of cameras on the market are extremely diverse, some of which are only a few dozen dollars, some are up to several hundred dollars, so you need to clearly define your observation needs to make the right choice.
- If you install a camera for your family and only need to observe in front of the house or in the room of small children or elderly parents, you only need to install a camera with a mid-range price to be able to observe.
- If you want the image to be sharp and detailed, then you need to buy high-priced products with better image quality for installation. With such high requirements, you should note that you should choose genuine camera models such as Hikvision, Dahua, Axis. To ensure the best quality and warranty policy.
2. Identify the environment to be observed:
This is also very important, you need to know where you install the CCTV camera to make the right choice.
Indoor observation needs: You should use the doom indoor security camera model because this is a surveillance camera model designed to be installed indoors with a wide angle to help you observe better, suitable for installation in the office, in house.
Outdoor observation needs: For outdoor observation, you need to use a bullet camera model, this is a special design that helps you observe further, but the viewing angle is narrower than the indoor camera model. Besides, the outdoor camera is also equipped with a cover and many high-end models can be equipped with waterproof features so that they can observe well in rainy climates.
For example, if you want to install a camera to be able to monitor license plates entering and exiting a building, watching the working activities of employees, you need the highest definition cameras and these types on the market are expensive.
If you want to observe people coming in and out from the door, observing the car outside the small shop, you should put the camera in the upper corner because that angle will have a fairly wide viewing angle and help you see more.
3. Choosing a focal length for surveillance camera:
Focal length is the distance from the optical center to the focal point of an object to be observed, with everyday cameras, the focal length is measured in mm. Commonly used focal lengths are 2.8mm, 3.6mm, 6mm, 8mm, 12mm.
Choosing a focal length is an important part of your observation, if you install it in a small area such as an office or a shop with a moderate area, you do not need to be too concerned about the focal length. However, if you want to observe far, observe close to see details with only 1 camera, you need to immediately think of the appropriate focal length.
How to choose camera focal length: The smaller the camera focal length, the wider the viewing angle, but only close observations (eg 2.8, 3.6mm lens …). The larger the lens, the better it is to see far, but the viewing angle is quite narrow, suitable for outdoor security camera models. Therefore, installing cameras for families often choose cameras with as small focal length as possible, for factories and warehouses, they often choose a type with a large focal length to see further.
4. Select night vision camera:
Most current camera models are equipped with night vision features because they are equipped with an infrared light system. However, many older camera models will not be available, you should choose the camera models equipped with infrared for better night vision.
5. Choose a wired or wireless camera:
Wireless camera models often have higher technology than wired cameras, but these devices depend on the internet quite a lot and can be quite noisy by phone devices. However, the wireless camera model is not too cumbersome because of the wiring and brings high efficiency when used.
Wired cameras:
Wired camera system includes main camera eyes and video recorder system. In particular, the image quality obtained will depend on the high or low resolution of the camera. The recorder has the effect of storing data and managing the cameras. How long the camera can be stored will depend on the capacity of the hard drive in the receiver. Currently, most camera recorders are equipped with features to view via phones and PCs, so it is also very convenient to be able to observe remotely easily.
Wired camera systems are highly stable, but need a rather sophisticated power and signal wiring.
Wireless cameras:
The IP camera (Internet Protocol Camera) series does not need a recorder system like wired cameras, wireless cameras store data with a memory card built into the camera. The storage of the camera also depends on whether the memory card capacity is high or low.
Today’s wifi IP camera models are often easy to install, do not affect aesthetics, and have many smart features such as 2-way talk or camera that can record sound, so they are used by many families. However, genuine IP camera models are often quite expensive, you should consider using them.
6. Select suitable surveillance camera technology:
Many people are not interested in surveillance camera technology, but good technology will help better image quality, storage capacity is significantly reduced. Let’s take a look at the technologies available on today’s cameras.
Analog technology: This is the first type of CCTV camera that can be called (because the previous generations no longer exist) this type of camera has a relative definition, the highest TVline unit is 1000Tvline.
SDI technology: Due to the need to observe higher definition, analog camera technology does not meet the needs of some businesses such as banks and jewelry stores. Therefore, SDI technology was born with the highest resolution at that time, 2.0MP with FULL HD 1080P standard and this was also the revolution of the CCTV industry.
IP Camera: Not long after SDI technology was born, IP cameras immediately replaced and can be said to have almost wiped out SDI technology because of its relatively high cost compared to analog cameras. IP camera has very popular advantages, the highlight of IP camera is high definition FULL HD 1080P, easy to upgrade with a large system compared to SDI technology because or dynamically according to the Lan network system.
HD-CVI technology: HD-CVI (short for High Definition Transport Video Interface ) is a technology that provides a method of transmitting high-definition video signals over coaxial cables. Provides 2 standard HD video formats, 1280H (1280×720 resolution) and 1920H (1920×1080 resolution). Gives a much higher picture quality than previous standard definition video formats. Compared with other high-definition transmission technologies via coaxial cable such as: SDI technology, HDTVI technology, AHD technology, etc., almost HD-CVI technology has no disadvantages and is completely superior to other technologies. other. Therefore, HD-CVI cameras meet all requirements of observation and surveillance in sizes from small to large. Especially this is a great security solution for large-scale areas of apartment buildings, urban areas, warehouses and offices.
AHD technology: Analog High Definition is an analog camera technology that achieves HD quality. Therefore, the image signal is transmitted without recompression like HDCVI and HD-SDI. Signal transmission on coaxial cable can be up to 500m . This is the next generation, so it has some outstanding features for mid-range households and warehouses. The advantage is that the price is low, only equivalent to an analog camera system, but you have a system with HD definition. Of course, it cannot be compared with previous technologies, but because of its low cost, it is very popular today.
HDTVI technology: This is the latest CCTV technology today in terms of price, quality and definition, this is a good choice for you, HD images, virtually no delay, stable quality, affordable price. It’s just not much better than the AHD camera.
In addition to the above criteria, choosing a reputable surveillance camera installation unit is extremely important because it will bring you the best products and services as well as have thorough security methods to help your system stay safe. The surveillance camera system is not penetrated by the prisoner.
With the above experience in choosing to buy CCTV cameras, hope you will choose the right camera model for your needs to save costs and improve observation efficiency.
