1. Introduction
The PGST TUYA Home Alarm Smart Security System 108-2G is a comprehensive wireless security solution designed to protect your home. It integrates Wi-Fi and GSM connectivity, allowing for remote control via the Smart Life APP and compatibility with smart home platforms like Alexa and Google Assistant. This system features a main control panel with a 2.4-inch TFT LCD colorful screen, supporting various sensors and offering real-time alerts and two-way voice intercom functionality.
Kit Contents Overview:

Image: Overview of the PGST Home Alarm System kit, including the main panel, SOS button, RFID tags, remote controls, motion sensors, and door/window sensors.
2. System Components
The main control panel is the central hub of your security system. Familiarize yourself with its layout and connections.
2.1 Main Panel Features

Image: Detailed view of the main control panel, labeling the Speaker, SOS Button, RFID card Sensing Area, Dialing Buttons, Arming/Disarming Keys, Up/Down/Function Keys, Back/Cancel Button, Confirm Button, and TFT Display Screen.
2.2 Main Panel Rear Connections

Image: Rear view of the main control panel, showing the Anti-prying switch, 3.5mm Siren Interface, Wired Arming Area Interface, SIM Card slot, ON/OFF switch, and Micro USB 110/220V AC to 5V power input.
3. Setup Instructions
3.1 Physical Installation of Sensors
Sensors are designed for easy installation on various surfaces.

Image: Demonstrates the easy installation of a door/window sensor (magnetic contact) and a motion sensor (PIR sensor).
3.2 SIM Card Insertion and Power
- Ensure the main unit is powered off using the ON/OFF switch on the rear panel.
- Insert a 2G SIM card into the designated slot on the rear panel.
- Connect the main unit to power using the Micro USB 110/220V AC to 5V input.
- Turn on the main unit using the ON/OFF switch.
3.3 Network Configuration
The system supports 2.4G Wi-Fi connectivity. Follow these steps to connect your alarm system to your home network:

Image: Flowchart illustrating two methods for network configuration: Method 1 (Soft AP Configure) and Method 2 (Air link Configure) via the Smart Life APP.
Method 1: Soft AP Configure
- On the Host: Go to Menu > Wi-Fi > Soft AP Configure.
- On your Phone: Open the Smart Life APP, go to Wi-Fi (2.4GHz) > Bluetooth > Add devices > Auto Search.
Method 2: Air link Configure
- On the Host: Go to Menu > Wi-Fi > Air link Configure.
- On your Phone: Open the Smart Life APP, go to Wi-Fi (2.4GHz) > Add devices > Sensors > Alarm > Wi-Fi > Blink Quickly.
3.4 Accessory Pairing
Pair your remote controls, RFID tags, and various sensors with the main unit.

Image: Flowchart for pairing remote controls and RFID tags: Menu > Parts > Remote / RFID > (+).

Image: Flowchart for pairing motion sensors, door/window sensors, and SOS buttons: Menu > Parts > Detector > (+) with options for Panic Alarm, Out Arm Active, System Alarm, and 24 Hours Active.
4. Operating Instructions
4.1 Main Interface Display
The 2.4-inch TFT LCD colorful screen displays essential information such as date, time, temperature, and arming status.

Image: Close-up of the 2.4-inch TFT LCD colorful screen, showing the main interface status bar, status tiles, and real-time date/clock display.
4.2 Arming and Disarming
You can arm or disarm the alarm system using the control panel keypad, remote controls, or the Smart Life APP. The system supports different arming modes (e.g., Away, Home).
The system can be configured to arm and disarm automatically based on a schedule set in the mobile app.
4.3 SOS Function
Press the dedicated SOS button on the main panel or the SOS button on a paired remote control to trigger an emergency alarm. This will notify pre-set contacts.
4.4 Two-Way Voice Intercom
The system supports two-way voice intercom, allowing you to make and receive calls through the main unit, and send voice messages via SMS remote control.

Image: Illustration of the two-way voice intercom function, showing a user making a call from the alarm system and a child responding, highlighting communication via the SIM card.
4.5 Mobile Phone Alarm Notification
When an alarm is triggered, the system will send real-time notifications to your mobile phone via the Smart Life APP. You can view alarm history and manage the system remotely.
4.6 Anti-Disassembly Alarm
The main unit is equipped with a built-in anti-pry switch. If the unit is tampered with or forcibly removed from its mounting, an anti-disassembly alarm will be triggered, notifying users via phone/text message.

Image: Depiction of the anti-disassembly alarm, showing the anti-pry switch on the back of the unit and a notification being sent to a mobile phone when triggered.
4.7 Real-time Low Battery Alert
The system monitors the battery status of connected sensors. When a sensor's power is low, the alarm system will send a message to the cell phone APP, reminding the user to replace the sensor battery in time.

Image: Visual representation of low battery alerts for a motion sensor and a door/window sensor, and how the main unit and mobile app display these alerts.
4.8 Product Demonstration Video
Video: A comprehensive demonstration of the PGST Home Alarm System, showcasing its easy installation, various alert functions, and mobile app control.
5. Maintenance
5.1 Battery Replacement
- Door Magnet Sensor: Uses a DC3V CR2450 button battery.
- PIR Sensor (Motion Sensor): Uses 3V AAA*2 alkaline batteries.
Replace batteries promptly when low battery alerts are received to ensure continuous protection.
5.2 Host Power Supply
The main unit is powered via USB charging. Ensure it is connected to a stable power source. The unit has a battery life of approximately 5.5 hours in case of power failure.
6. Troubleshooting
6.1 Common Issues
- No Network Connection: Verify your Wi-Fi network is 2.4GHz. Re-attempt network configuration using both Soft AP and Air link methods. Ensure your SIM card has active service if using GSM features.
- Sensor Not Triggering: Check sensor battery levels. Ensure sensors are correctly paired with the main unit (refer to Section 3.4). Verify proper placement and alignment for door/window sensors.
- No Mobile Notifications: Check your phone's notification settings for the Smart Life APP. Ensure the main unit has a stable internet connection (Wi-Fi or GSM).
6.2 User Tips: Voice Prompts
If you wish to deactivate the voice prompts that announce when the alarm is activated or deactivated, navigate through the main unit's menu settings. Look for options related to 'Sound Settings', 'Voice Prompts', or 'System Tones' to adjust or disable these announcements.
7. Specifications
| Attribute | Value |
|---|---|
| Model Number | 108-2G |
| Kit Configuration | Door/Window Sensor |
| Communication Interface | Wireless |
| Arming Type | APP |
| Video Interface | No |
| Display | Yes |
| Password Keyboard | Yes |
| Brand Name | PGST |
| Origin | Mainland China |
| Smart home platform | alexa, Tuya, Google Assistant |
| Certification | CE |
| Alarm Type | The Alarm, Apps Control, PSTN, GPRS |
| Supported languages | Simplified Chinese, English, German, Russian, Spanish, Polish, Italian, French, Portuguese |
| Support APP | TUYA/Smart Life |
| Alarm system version | 2G |
| Connectivity | 2.4G WIFI |
| SIM type | 2G |
| Door magnet battery model | DC3V (CR2450 button battery) |
| PIR sensor battery model | 3V AAA*2 alkaline battery |
| Number of sensors connected to the main unit | 100 |
| Host power supply | USB charging |
| Plug specification | EU |
8. Warranty and Support
For warranty information, technical support, or further assistance, please contact the manufacturer or your retailer. Keep your purchase receipt for warranty claims.





