Home security system controller.
Designed to give sound and light feedback.
Home security system controller.
When switched on, light appears through the front surface.
Home security system controller.
Designed to give sound and light feedback.
Sound exit holes are located on both sides.
Sketches.
Alarm controller
Alarm controller
Alarm controller
Alarm controller
Alarm controller
2008
2008
2008
2008
2008
