1. Plus deview
The LWOHSI A108F-US-A is an advanced WiFi+GSM 4G DIY alarm system designed to provide robust security for your home, apartment, or office. It features a central control panel that connects wirelessly to various sensors and accessories, offering real-time alerts via phone app, SMS, and voice monitoring. The system is compatible with smart home platforms like Amazon Alexa and Google Assistant for convenient voice control.

Figure 1: LWOHSI A108F-US-A Alarm System Kit Components
Le kit comprend généralement :
- Panneau de contrôle principal : The central hub with a 4.3-inch TFT colorful display screen, touch keypad, SOS button, and RFID sensing area.
- Capteurs de porte/fenêtre : Detect opening and closing of entry points.
- PIR Motion Sensor: Detects movement within a designated area.
- Télécommandes : Pour un armement et un désarmement aisés.
- RFID Tags: For quick disarming by tapping the control panel.
- Adaptateur secteur : For powering the main control panel.
2. Configuration et installation
2.1 Host Unit Overview
The main control panel is the brain of your security system. It features a user-friendly interface for managing all connected devices and settings.

Figure 2: Main Control Panel Features
The panel includes a speaker for audio alerts, an SOS button for emergency calls, and an RFID sensing area for quick disarming with RFID tags. The rear of the unit provides installation points, a SIM card slot, audio port, power button, and USB interface.
Video 1: PG108 Connection Operation Overview. This video provides a general introduction to the host unit and its physical features.
2.2 Insertion de la carte SIM
The alarm system supports 4G GSM communication. To enable SMS and voice call alerts, insert a compatible SIM card into the main control panel.

Figure 3 : Guide d'insertion de la carte SIM
- Ensure the main control panel is powered off.
- Repérez l'emplacement de la carte SIM à l'arrière du panneau.
- Insert the SIM card with the chip facing upwards and the notched corner facing outwards.
- Gently press the SIM card until it clicks into place.
- Connectez le câble d'alimentation et allumez l'appareil.
Video 2: SIM Card Insertion. This video demonstrates the correct way to insert the SIM card into the alarm host.
2.3 Initial Configuration: Language and Time
Upon first use or after a reset, you may need to set the system language and time.
- Depuis le menu principal, accédez à Paramètres.
- Sélectionner Langue and choose your preferred language (e.g., English).
- Return to the main menu, then go to Minuteur.
- Sélectionner Date et heure to adjust the current date and time settings.
Video 3: Setting Language and Time. This video guides you through setting the system's language and current time.
2.4 Setting Keypad Lock
To prevent unauthorized access to your alarm system's settings, you can enable a keypad lock.
- Depuis le menu principal, accédez à Paramètres.
- Sélectionner Mot de passe. The system has a default system password (6666) and a user password (1234), which can be customized.
- Sélectionner Changer, puis choisissez Verrouillage du clavier.
- Toggle the keypad lock to ON. You will need to enter the corresponding setting password to confirm.
- If you do not require the keypad lock, you can turn it off. The keypad lock will take effect after restarting the device.
Video 4: Keypad Lock Setup. This video demonstrates how to enable and manage the keypad lock feature.
2.5 Network Configuration (WiFi)
Connect your alarm system to your home WiFi network for app control and push notifications. Ensure your WiFi is 2.4GHz.

Figure 4: Mobile App Device Management
- Sur le panneau de commande principal, accédez à Menu > Wifi > Configuration de la liaison aérienne.
- On your mobile phone, ensure Wi-Fi (2.4 GHz) est activé et Bluetooth est éteint.
- Ouvrir le Application Smart Life. Tap the '+' icon in the upper right corner to Ajouter un appareil.
- Sélectionner Capteurs, alors Alarme (Wifi).
- Entrez le nom et le mot de passe de votre réseau WiFi 2.4 GHz.
- Follow the on-screen prompts to reset the device and confirm the indicator is blinking quickly.
- The app will connect to the device. Once connected, the device will be added to your app.
Video 5: Network Connection Tutorial. This video provides a detailed guide on connecting your alarm system to your WiFi network.
2.6 Accessoires de couplage
The system supports various wireless accessories. Follow these steps to pair them with the main control panel.

Figure 5: PIR Motion Sensor

Figure 6: Door/Window Sensor

Figure 7: SOS Emergency Button

Figure 8: Wireless Siren
- Sur le panneau de commande principal, accédez à Menu > Parties.
- Select the type of accessory you want to pair (e.g., Détecteur for PIR/Door Sensor, Télécommande for remote controls, RFID for RFID tags, Sirène Apprendre for siren).
- Sélectionner Ajouter.
- For detectors (PIR, Door/Window): Select the desired alarm type (e.g., System Alarm, Stay Arm Active). Trigger the detector (e.g., move in front of PIR, separate door sensor). The panel will confirm successful pairing.
- For remote controls: Press any button on the remote control. The panel will confirm successful pairing.
- Pour la RFID tags: Place the RFID tag on the RFID sensing area of the control panel. The panel will confirm successful pairing.
- For SOS button: Select Panic Alarm and 24 Hours Active. Press the SOS button. The panel will confirm successful pairing.
- For smoke/gas detectors: Select Gas Alarm and 24 Hours Active. Press and hold the smoke button. The panel will confirm successful pairing.
- For siren: Turn on the siren switch. Long press the button on the siren until you hear three beeps. The panel will confirm successful pairing.
Video 6: Accessory Linkage Operation. This video demonstrates how to pair various accessories with your alarm system.
3. Fonctionnement du système
3.1 Armement et désarmement
You can arm and disarm your security system using various methods:
- Clavier: Enter your user password on the control panel and select Arm or Disarm.
- Télécommande: Appuyez sur le bouton d'armement ou de désarmement de votre télécommande.
- RFID Tag: Appuyez sur votre RFID tag on the RFID sensing area of the control panel to disarm.
- Application mobile : Use the Smart Life APP to remotely arm or disarm the system.
- Contrôle vocal : Integrate with Amazon Alexa or Google Assistant for voice commands (e.g., "Alexa, arm my home!").

Figure 9 : Commande vocale avec Alexa

Figure 10: Alexa Voice Control Functionality
3.2 Setting Up Alarm Calls and Text Messages
Configure emergency contacts to receive calls and SMS alerts when the alarm is triggered.

Figure 11: 5 Preset Alarm Calls
- Depuis le menu principal, accédez à Téléphone.
- Select the desired phone number slot (e.g., 1st Phone).
- Enter the phone number to be dialed by the alarm.
- Ensure the Call and SMS functions are enabled for this number.
- When the main unit alarms, the mobile phone will receive the call and SMS. If the SMS function is turned off, only calls will be received. If the phone function is turned off, only text messages will be received.
Video 7: Setting Up Alarm Calls and Text Messages. This video demonstrates how to configure emergency contact numbers for calls and SMS alerts.
3.3 Mobile Application Remote Control
The Smart Life APP provides comprehensive remote control over your alarm system.

Figure 12: Mobile App Remote Control Functions
- Armer/Désarmer : Change the system's arming status from anywhere.
- Notifications d'alarme : Receive instant push notifications on your phone when an alarm is triggered.
- Requête d'enregistrement : View a history of alarm events and system activities.
- Gestion des appareils : Add, remove, and configure sensors and accessories.
4. Entretien
4.1 Gestion de la batterie
The main control panel has a built-in lithium polymer battery for backup power. Wireless sensors are battery-powered and will alert you when their battery is low.

Figure 13: Low Battery Notification Flow
When a sensor's battery is low, the system will:
- Display a low battery icon on the control panel.
- Send a low battery notification via the mobile app.
- Send an SMS alert (if configured).
Replace sensor batteries promptly to ensure continuous protection.
4.2 Mises à jour du système
Keep your system updated to ensure optimal performance and access to new features.
- Ouvrez l'application Smart Life.
- Navigate to the device settings for your alarm system.
- Look for a section like Mise à jour de l'appareil or Mise à jour du micrologiciel.
- Vérifiez les mises à jour disponibles et suivez les instructions à l'écran pour les installer.
5. Dépannage
If you encounter issues with your LWOHSI alarm system, refer to the following common solutions:
- Aucune connexion Wi-Fi : Ensure your WiFi network is 2.4GHz. Verify the password. Try restarting your router and the alarm panel. Refer to Section 2.5 for detailed network configuration steps.
- Capteur ne se déclenche pas : Check the sensor's battery (refer to Section 4.1). Ensure the sensor is correctly paired (refer to Section 2.6). Verify the sensor's placement and ensure it's within range of the main panel.
- No Phone/SMS Alerts: Confirm the SIM card is correctly inserted and active (refer to Section 2.2). Check that emergency contact numbers are correctly set up and call/SMS functions are enabled (refer to Section 3.2). Ensure sufficient credit on the SIM card if applicable.
- Clavier verrouillé : Enter the correct system or user password. If forgotten, refer to the initial password settings in Section 2.4.
- Le système ne répond pas : Try restarting the main control panel by unplugging and re-plugging the power adapter.
Pour tout problème persistant, veuillez contacter le service client.
6. Spécifications techniques
| Fonctionnalité | Spécification |
|---|---|
| Marque | LWOHSI |
| Numéro de modèle | PG108-4GUK |
| Source d'énergie | Alimenté par batterie |
| Appareils compatibles | Smartphone (Alexa, Google Assistant, Tuya) |
| Dimensions de l'article (L x l x H) | 3.94 x 1.57 x 6.69 pouces |
| Technologie de connectivité | Wireless (WiFi + 4G GSM) |
| Type d'alerte | Audio & Motion (APP Push, SMS, Voice Monitoring) |
| Méthode de contrôle | App, Keypad, Remote, RFID |
| Composants inclus | 1 SET A108F ALARM SYSTEM (Main Panel, Sensors, Remotes, RFID) |
| Poids de l'article | 1.39 livres |
| Piles | 1 batterie Lithium Polymère (incluse) |
7. Garantie et assistance
LWOHSI provides a standard manufacturer's warranty for this product. For specific warranty terms and conditions, please refer to the documentation included with your purchase or contact LWOHSI customer service directly.
If you require technical assistance, have questions about your product, or need to report an issue, please reach out to LWOHSI customer support through the contact information provided on the product packaging or the official LWOHSI webVeuillez vous munir du numéro de modèle de votre produit et des détails de votre achat lorsque vous contactez l'assistance.