Home Security System User Manual
2-40
mode to Night 
mode 
switches into night mode. Increasing it will make 
camera switch to night mode at a darker illumination 
level.
Switch from Night 
mode into Day 
Mode 
This value controls the level of light where camera 
switches into Day mode. Increasing it will make 
camera switch to night mode at a darker illumination 
level.
Brightness Meter 
Bar 
This bar shows the illumination level at which cameras go 
to night or day mode (Blue / Red bars), and shows the 
current detected illumination level (Green bars). Use this 
bar to fine tune the day/Night switch timing. 
Get Current 
Exposure Level 
Clicking this button will refresh the illumination level 
reading from the camera sensor. The larger the number, the 
darker the environment. 
Click the   [Apply] button to confirm the settings or click the   [Reset] button to 
re-enter the parameters. 
How it works 
An important feature in this screen is that user may now customize the illumination level 
to perform day/night mode switches. 
On the horizontal brightness meter shown here, there are three colored bars. The bar 
represents light amplifying levels 0 to 100, where 0 is Brightest and 100 is darkest. 0 
means no digital amplification of incoming light signals, which means that the 
environment is bright enough for the camera to get good quality images. 
When the environment gets darker, as when the sun is setting over the horizon, the 
environmental gets darker. To maintain proper image brightness level, the camera will 
attempt to digitally amplify the light signals received by the sensor. The Blue one is the 
level at which camera will go into night mode, and remove Mechanical IR cut filter and 
open IR LED if available. The red one indicates the illumination level at which the 
camera will consider bright enough to go back to day (Color) mode. 
The Red bar should always be to the left of the blue bar. As camera go from day to night 
mode, more lights are allowed inside (the IR filter is removed), so the detected light 
signal level will increase. If the night-to-day illumination level is too close to the 
day-to-night level, the camera will immediately consider it bright enough to go back to 
day mode, which will result in continuous day/night switching. 










