The car alarm system is implemented using a single CMOS integrated circuit, with very low current consumption in standby mode. The small number of capacitors used contributes to increased operational reliability.
The system features entry and exit delay for the doors, as well as a defined alarm signal duration. When the trunk or hood is opened, the alarm signal is activated immediately.
The device operates with a supply voltage in the range of 9-15 V DC and is suitable for use in automotive installations.
The printed circuit board has compact dimensions suitable for installation.

Technical specifications:
Integrated circuit: CMOS.
Exit delay time: approximately 15 seconds.
Entry delay time: approximately 15 seconds (doors only).
Alarm signal duration: approximately 70 seconds.
Supply voltage: 9-15 V DC.
Standby current consumption: minimal.
PCB dimensions: 38 x 35 mm.

This product is a DIY assembly kit.