Security Camera Buying Guide: What Questions to Ask Before You Purchase

Are you feeling overwhelmed by all the camera choices? Choosing the right security system is the best way to protect your family or business. To make it easy, we have put together the ultimate cheat sheet for you.

1. Essential Pre-Purchase Questions for Every Buyer

First, you must understand your own goals. Many people buy cameras without a plan. However, a good plan saves you money. You should start by asking: “What am I trying to watch?” This helps you decide the type of camera you need. For example, a camera for a pet is different from a camera for a dark warehouse. You should also consider the size of your space. A large yard needs different tools than a small apartment.

What is My Primary Goal?

Are you trying to catch a package thief? Or are you monitoring your employees? Identifying your goal is the first step. If you want to deter burglars, you need visible cameras. If you want to monitor a baby, you need a small, indoor camera with two-way talk. At Shenzhen JER Technology Co., Ltd., we have spent 15 years helping clients find the perfect match for these goals. We know that every customer has a unique story and a unique need for safety.

How Many Cameras Do I Really Need?

You don’t need a camera in every corner. Instead, focus on “choke points.” These are places like the front door, the back gate, and the driveway. Most homes need 3 to 4 cameras. Larger businesses might need 16 or more. You should walk around your property. Look for blind spots where someone could hide. For more help on placement, check out this Security Camera Placement Guide. Planning your layout early prevents you from buying too many or too few devices.

What is My Total Long-Term Budget?

The price on the box is not the final price. You must think about extra costs. These include cables, power supplies, and storage fees. Many brands charge a monthly fee for cloud storage. However, if you choose a system with an NVR (Network Video Recorder), you pay once and own your data. This is why we focus on high-quality hardware that lasts for years without hidden costs. Spending a bit more now can save you hundreds of dollars in the future. Always look at the total cost of ownership over three years.

2. Technical and Hardware Considerations

Technical specs can be confusing. But don’t worry! We can break it down easily. The “tech” inside the camera determines how clear the picture is. Therefore, you must ask about the hardware before you swipe your credit card. High-quality parts mean fewer repairs later on. If you buy a camera with a poor sensor, the video will look grainy and useless when you need it most.

Power Source: Wired, Wireless, or Battery?

How will your camera get power? Wired cameras are very reliable. They use a cable for power and data. Wireless cameras connect to Wi-Fi but still need a plug. Battery-powered cameras are the easiest to install. However, you must charge them often. If you want a “set it and forget it” system, go with a wired PoE (Power over Ethernet) setup. It is our most popular choice for businesses because it never runs out of juice. You can see how these are installed in this PoE Installation Guide.

Field of View and Resolution

The “Field of View” (FOV) is how wide the camera sees. A wide lens (like 130 degrees) covers a whole yard. A narrow lens is better for looking down a long hallway. Also, look at the resolution. 1080p is the standard today. But 4K (8MP) is becoming the new favorite. High resolution allows you to zoom in on a face or a license plate without the image getting blurry. In 2025, 4K is the best choice for anyone who wants to see fine details clearly from a distance.

Night Vision and Weatherproofing

Crime often happens at night. So, your camera needs good night vision. Some cameras use Infrared (black and white). Others use “Color Night Vision” with small spotlights. Also, check the IP rating. An IP67 rating means the camera is dust-tight and can handle heavy rain. Since we are based in Shenzhen, we build our cameras to handle both heat and humidity perfectly. Our outdoor cameras go through a 48-hour aging test to make sure they can stand up to the toughest weather on Earth.

3. Storage and Data Management

Where does the video go? This is a vital question. If your camera records a crime, you need to be able to find that video quickly. Different storage types have different pros and cons. You must decide what fits your lifestyle and your internet speed. If your storage fills up too fast, you might lose the very footage you were trying to save. Therefore, planning your storage is just as important as choosing the camera itself.

Cloud vs. Local Storage

Cloud storage saves video on the internet. It is easy to use but usually costs a monthly fee. Local storage saves video on an SD card or a hard drive. This is more private and has no monthly fees. Many of our professional clients prefer NVR systems. This is because they can store weeks of high-definition video locally without relying on the internet. You can learn more about the differences at Consumer Reports’ Storage Guide. Having your own hard drive means you are the boss of your own data.

Bandwidth and Data Usage

High-quality video uses a lot of data. If you have many cameras uploading to the cloud, your internet might slow down. This can affect your gaming or Netflix streaming. You should ask: “Does this camera use H.265 compression?” This technology shrinks the file size without losing quality. It helps your internet run smoothly while keeping your video sharp. Most of our modern IP cameras use H.265+ to give you the best of both worlds—tiny files and beautiful pictures.

Retention and Playback Features

How long do you need to keep your footage? Most people need about 7 to 14 days. However, some businesses need 30 days for insurance reasons. You should also check the app features. Can you search for “motion events” quickly? Or do you have to watch hours of boring video? Smart playback saves you a lot of time when you are in a hurry. You should look for systems that tag videos when they see a person or a car, so you don’t have to hunt for the action.

4. Privacy and Security Protections

Security cameras are meant to keep you safe. But they should not be a gateway for hackers. Digital security is just as important as physical security. You must ask the manufacturer how they protect your data. This is a topic we take very seriously at Shenzhen JER Technology Co., Ltd. A camera that isn’t secure is just another eye for a stranger to use. Always put your digital privacy first.

Encryption and Hacking Protection

Always ask if the video is encrypted. This means the data is turned into a secret code. Only you have the “key” to read it. Even if a hacker gets the file, they cannot watch it. You should also look for “Two-Factor Authentication” (2FA). This sends a code to your phone when you log in. It adds an extra layer of protection for your family’s privacy. We make sure our products meet global standards like CE and FCC to ensure they are safe for your home network.

Privacy Zones and Masking

Sometimes, your camera might see things it shouldn’t. For example, it might see into a neighbor’s window. Good cameras have a feature called “Privacy Masking.” You can draw a box over the neighbor’s window in the app. The camera will then “black out” that area. It keeps your security high while respecting your neighbors’ privacy. This feature is very helpful if your camera is mounted near a street or a shared wall. It helps you stay a good neighbor while staying safe.

Automatic Software Updates

Technology changes fast. Hackers find new ways to break in every day. Therefore, your camera needs regular software updates. These updates fix security holes. Ask the seller if the camera updates itself automatically. A camera that never gets updates is a security risk. We provide ongoing support for our devices to ensure they stay safe for years. We believe that a good product stays good because the manufacturer continues to care about it long after the sale.

5. Why Choose Shenzhen JER Technology Co., Ltd.?

When you ask these questions, you want a partner who has the answers. We are not just another factory. We are a high-tech enterprise with over 15 years of experience. We started in 2009 in Shenzhen, the heart of the world’s electronics industry. This gives us a special advantage that other companies don’t have. We have grown from a small team into a global supplier that produces thousands of cameras every month.

The Shenzhen Advantage

Because we are located in Shenzhen, we are close to the best parts and the newest tech. We can build cameras faster and better. We also have a skilled workforce that knows surveillance inside and out. This means we can offer you high-quality products at competitive prices. You get professional-grade gear without the “big brand” markup. We are surrounded by innovation, and we bring that innovation directly to your front door. Our location helps us stay ahead of the curve in a fast-moving market.

Customization and Flexibility

Every customer is different. Some need a few cameras for a home. Others need hundreds for a factory. We offer “OEM” and “ODM” services. This means we can customize our cameras for your specific needs. Whether you need a special color or a specific software feature, we can do it. Our longevity in the market shows that our clients trust us to deliver what we promise. We work with distributors and e-commerce sellers in over 50 countries, helping them build their own successful brands.

Proven Reliability and Trust

With 15 years in the business, we have seen the industry change from old analog styles to smart IP cameras. We have grown because we focus on quality. We don’t just sell a box; we provide a solution. Our products are used in residential, commercial, and industrial settings all over the world. When you choose JER Tech, you are choosing a partner with a proven track record. We are committed to your peace of mind and your long-term safety. Our 24/7 global support team is always here to help you solve any problem.

Conclusion: Are You Ready to Buy?

Buying a security camera is a big decision for your safety. By asking the right questions about power, storage, and privacy, you can find a system that fits your life perfectly. Don’t settle for the cheapest option you find on a random shelf. Instead, look for a manufacturer with experience and a focus on quality. A good security system is an investment in your future and your family’s happiness.

Ready to secure your property with a trusted partner?

Visit us at jer-tech.com today. Explore our wide range of CCTV and IP camera solutions. Our team is ready to help you answer every question and find the perfect security setup for your needs. Protect what matters most—contact Shenzhen JER Technology Co., Ltd. now!