How to choose IR cameras

Maria Zhu

Maria Zhu

Jun 05, 2024

IR cameras

“The IR illuminator should be long ranged and the camera should be small.”
Some customers have this idea when purchasing IR cameras. When choosing an IR camera, it is essential to consider a number of factors to ensure it meets your specific surveillance needs and environmental conditions.

Firstly, it is essential to define the scope and extent of monitoring.
Choose a camera with a suitable field of view and focal length, as well as an infrared lamp with an appropriate illumination distance, based on the size of the monitoring area and the required monitoring distance.
The long distance of the IR lamp does not guarantee that the camera will be able to capture clear images at the same distance. The lens' millimeter affects the camera monitoring distance to a certain extent. The longer the lens focal length, the farther the camera monitoring distance will be. The irradiation distance of the infrared lamp must match that of a camera with a suitable lens.

Secondly, the large size of the infrared camera allows for more effective heat dissipation.
It should be noted that infrared lamps generate additional high temperatures, which can affect the camera for a long time, especially if it is equipped with a high-power infrared lamp.
Some IR cameras employ a larger cavity or split design to mitigate the impact of the high temperature generated by the IR lamp on the camera.

Furthermore, you must decide on the camera resolution.
The resolution of an IR camera is the single most important factor in determining its image quality.
A higher resolution means a more detailed image, which is essential for certain applications, such as detecting small temperature differences or inspecting electrical equipment.

It is also essential to consider the camera's protection level to guarantee its ability to adapt to the specific demands of the installation environment.
In addition, in accordance with the specific requirements of the environment, such as waterproof, dustproof, and explosion-proof, it is advisable to select infrared lamps and cameras with the corresponding functions.

It is of the utmost importance to select the optimal combination of products in accordance with budgetary limitations.
It is a well-known fact that the higher the performance of a product, the more expensive it is. This will not be discussed here.