Can Security Cameras Detect and Record Motion Through Glass or Behind a Glass Window?

There are two primary types of motion sensors used in security camera systems: pixel-based motion sensors, which trigger alerts by measuring changes in pixels and rely on software algorithms, for example, ZOSI C518.

And passive infrared (PIR) motion sensors, which set off motion alarms by detecting body heat and infrared energy, such as ZOSI C306, C1.

Security cameras with a motion sensor that calculates changes in pixels are capable of detecting movement and recording through glass or a glass window. However, PIR motion sensor security cameras may not work reliably or may not work at all through windows or glass because modern houses today use insulated glass that limits heat coming through the glass, thus undermining motion detection.

To detect and record motion through glass or a glass window, you can place the camera outside or mount it on the wall or window ledge, or install it under a soffit or overhang.

Alternatively, you can install wire-free security cameras outdoors on the walls to keep an eye on areas of interest. Additionally, you can choose motion sensor security cameras that detect motion by calculating changes in pixels and place them in the window for daytime monitoring.

Read also: Do Security Cameras Work through Glass or behind a Glass Window