The alarm system is designed to protect the premises. It is based on a PIC16F628A Microchip microcontroller. 
The system has the following functions: 
- Three zones: Zone 1 - delayed (door). Zone2 - instant (sensor/sensors) and TMP Zone - 24-hour security for the cables and the system itself. 
- Two 4-digit codes: User code - for ON/OFF position of the alarm system and an engineering code - for programming purposes. 
- Changing the input, output time and alarm time, user and engineering code. 
- Input time: 5, 10 and 20 seconds. 
- Output time: 10, 20 and 30 seconds. 
- Alarm signal time: 30, 60 and 120 seconds. 
- Mode (bell) - When zone 1 is activated (door opening) - beeps. 
- Sound and light indication. 
- Keyboard with 12 buttons. 
Overalldimensions PCB 74x52mm. 

This product is an assembled module. 

The appearance may differ from the one in the photo without changing the parameters of the product (This means that there may be a difference in the elements used (appearance, placement, color, shape or value)).