Inspection cameras are versatile cameras that enable you to look at areas you wouldn’t normally be able to access. They consist of a tiny camera at the end of either a rigid or flexible cable. Whether you’re inspecting an area behind a wall, down into a drain or inside your car, an inspection camera can give you a clear view.Â
Types of Inspection CameraÂ
There are a few different types of inspection cameras worth knowing about.Â
Endoscopes are miniature cameras. These have very small lenses with a diameter of around 4 mm. Although used in a range of industries, these are most commonly associated with medicine. Endoscopes are used to view inside the human body and diagnose illnesses.Â
Borescopes are designed for industrial as opposed to medical use. These have either a rigid or flexible stem and are suitable for large equipment inspections. They usually have a larger diameter lens than endoscopes, illuminating a greater area.
Wireless inspection cameras use wifi to transfer data. The images and videos taken can be transferred to a screen for viewing. These are used in any situation where you need to view the data being collected in real-time.Â
Telescopic cameras are used for areas out of reach. These are usually rigid and allow you to look at things above you, for example into pipework or ceilings.Â
Connection and Amount of Storage
Inspection cameras usually have fixed internal storage, while others use removable SD cards. If you are simply using your inspection camera to diagnose a problem in your car or drainpipe, you won’t need a huge amount of storage.Â
If your inspection camera has wifi capability, you should be able to transfer the footage to your smartphone and view it on the screen. However, you should check that your smartphone is compatible with your camera before purchasing.Â
Screen or Display
If your inspection camera comes with a display, you should ensure it’s large enough for you to clearly view what’s going on. 3” and above tends to be the best screen size for viewing. Any smaller than this, and you may not be able to get a good view of the area.Â
Not all cameras have a screen or display. More modern inspection cameras may be wifi enabled. This means that you can transfer the data to your phone or laptop screen, allowing you to get a better image quality.Â
WaterproofingÂ
It’s important that your inspection camera is waterproof, especially if you’re going to be using it in damp areas or to inspect drains. Those with a fully waterproof rating can be used underwater.Â
It’s worth noting that while the camera and cable itself may be waterproof, the screen and display might not be. This means a lot of care still needs to be taken when working in damp areas or around drain pipes.Â
Focal Distance
The focal distance should also be considered. The cameras I’ve recommended have focal distances ranging from 3 cm all the way to 40 cm. You should consider whether you’ll be mainly using your camera for close-up viewing, or whether it’s more important for you to see the area as a whole.Â
Of course, you may not know exactly what task you are using your camera for. The models I’ve recommended have variable focal distances; a distance of between 3 and 10 cm would be suitable for a wide range of tasks.Â
Cable Type and Length
Inspection cameras generally have either a flexible or rigid cable. Rigid cables are better for areas above your head or in straight lines. These are best for inspecting drains and can also be useful if you’ve got some obstacles that you need to push through to get into a confined space.Â
Semi-flexible cables are better for getting around corners. These can be manoeuvred and directed and will stay in the position you place them. However, they are slightly more practical than rigid cables because they can be manoeuvred around bends.Â
The length of the cable is also an important factor. I’ve recommended cameras with cable lengths ranging from 1 m to 10 m. Those with long cables can get into areas a lot further away, but the camera itself will feel heavier. This makes the cable overall a little less manoeuvrable once you’ve managed to get it into a tight space.Â
Shorter cables don’t give you quite as much versatility when it comes to the task, but you’ll have more control over the camera at the end.Â
Battery Life
Inspection cameras are battery-powered, and the battery life is important. The charge time is also worth looking at.Â
Some inspection cameras use disposable batteries. While these are more convenient because there’s no need to wait hours for the battery to charge, they may work out more expensive and you’ll need to dispose of the batteries after use.Â
Rechargeable batteries are convenient provided they last long enough. Ideally, you’ll want a few hours of run time. This is especially important if your camera takes a few hours to charge, as many do.Â
Camera ResolutionÂ
Whether you’re buying an inspection camera, a CCTV camera or a bird box camera, the resolution is always going to be a factor. The higher the resolution, the clearer the image will be, but the camera will also be more expensive.Â
If you’re not going to be needing an ultra-sharp image, you’ll be able to get away with a lower resolution.Â
Led Lights
Many inspection cameras come with LED lights, meaning you can collect footage even in dark areas. A camera without LED lights will be fairly useless in areas behind walls, deep into drains or other areas that don’t receive a lot of natural light.Â
The number of LEDs doesn’t matter hugely so long as the light is sufficiently bright enough to illuminate the area.
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