1. Introduction
This manual provides detailed instructions for setting up, operating, and maintaining your eMastiff Tuya WIFI GSM Home Security Alarm System. This advanced system offers comprehensive security for your home or garden, integrating wireless and wired sensors, app control, and cellular communication.
The hub cellular+Wi-Fi model is a dual network system that utilizes both Wi-Fi and cellular (GSM/4G). All sensors are wirelessly connected to the hub. In the event of alarm activation, a push notification will be sent, and an alarm call will be made automatically to all registered users. The system can be controlled on-site by remote tags, RFID tags, the ARM button on the hub, or remotely via the dedicated mobile application.
The system can connect with up to 100 wireless sensors, 10 remote tags, and 10 RFID tags.

Figure 1: Overview of the eMastiff W7B Alarm System components.
2. Setup Guide
2.1. Things to be Noted Before Getting Started
- This guide is for Hub cellular models (2G/4G) and Hub cellular + Wi-Fi models (2G/4G + Wi-Fi).
- If using a 4G SIM card, ensure the 2G network of your wireless service provider is available in your country. Consider a 4G cellular communicator hub if 2G is unavailable.
For Hub Cellular + Wi-Fi Models Only:
- Select a 2.4GHz Wi-Fi network. The hub does not support 5GHz Wi-Fi.
- Your Wi-Fi password must not contain spaces or other special characters.
- Place your hub as close as possible to your router during setup.
- A slow network speed can affect performance. A minimum upload speed of 2Mbps is recommended.
- Ensure the AP isolation setting in your router is disabled.
2.2. What You Need
To set up and use the Alarm System, you will need:
- An iPhone or Android phone.
- The Smart Security System app.
- An unused indoor power outlet.
- A regular SIM card supporting 2G/GSM (for 2G version) or 4G network (for 4G version).
- A Wi-Fi 802.11 b/g/n (2.4GHz) network connection (for Hub cellular + Wi-Fi only).
2.3. Install the SIM Card
- Press and slide the cover in the OPEN direction of the arrow and lift it up.
- Plug your SIM card into the slot.
- Put down the cover, press and slide it in the LOCK direction of the arrow to secure it.

Figure 2: SIM Card Installation.
2.4. Adding Your Hub (App Configuration)
Upon downloading and installing the app on your phone, follow the on-screen prompts to register and log in to add your hub.
2.4.1. Smartlink Configuration
- Tap 'Add Device' or '+', select 'Security & Sensor', and tap 'Alarm'.
- On your hub, tap 'β' to go to 'Wi-Fi > Smartlink Configure'. Ensure your device is in SmartLink mode with the LED blinking rapidly.
- Tap 'Confirm indicator rapidly blink', choose your local Wi-Fi, and input the password (only 2.4GHz Wi-Fi network is supported).
- Wait for the configuration to finish, then tap 'Done'.
2.4.2. SoftAP Mode (if Smartlink fails)
- If Smartlink configuration fails, change to Soft AP mode. Tap 'AP Mode' at the 'Add Device' page.
- On your hub, tap 'β' to go to 'Wi-Fi > SoftAP Configure'. Ensure your device is in SoftAP mode with the LED blinking slowly.
- Tap 'Confirm indicator slowly blink' on your APP, choose your local Wi-Fi, and input the password (only 2.4GHz Wi-Fi network is supported).
- Tap 'Confirm > Go to Connect', then choose the Wi-Fi hotspot named "Smartlife-XXXX" in your Wi-Fi list. Go back to your APP to wait for the Wi-Fi configuration to finish, then tap 'Done'.
Tip: After configuration, you can tap '-> Share Device' to share your hub with your family.
2.5. How to Add Phone Number
- Tap 'Setting > Alarm call number' in the 'Contact' column to add phone numbers for alarm calls.
- Tap 'Setting > Alarm SMS number' in the 'Contact' column to add phone numbers for alarm SMS.
- Tap 'Alarm call' to turn alarm calls on or off.
- Tap 'Alarm SMS' to turn alarm SMS on or off.
Tip: Up to 5 alarm call numbers and 5 alarm SMS numbers can be added.
2.6. How to Add Accessory
Pick your device at the home page, tap 'Accessories > Add', then follow the tips below to trigger your accessory to be added. After the accessory is added, it will be classified into the corresponding column automatically.
Tip: Up to 100 wireless detectors, 10 remote tags, and 10 RFID tags can be added.
Video 1: Demonstration of adding accessories to the alarm system via the app.
2.6.1. How to Pair a Remote Tag by the Panel
- Go to 'Menu > Parts > Remote > Add' and enter.
- Enter a digit from 0 to 9 to designate a unique number for the remote tag.
- 'Synchronizing' will be shown, and the hub will enter pairing mode.
- Press any button on the remote tag to send a transmission signal.
- Once the serial number is added, 'Learning OK' will be shown.
2.6.2. How to Pair a Wireless Sensor by Panel (Door/Window Sensor or PIR Motion Detector)
- Go to 'Menu > Parts > Detector > Add' and enter.
- Scroll to 'A' and tap to select the desired Zone Name. For doorbell use, select 'Doorbell'.
- Scroll to '24' and tap to select the desired Zone Mode (Type). Assign a Zone Mode to each sensor:
- Normal: Sensors activate in Arm or HOME Mode. Recommended for door/window sensors.
- 24 Hours: Sensors activate alarm regardless of arm/disarm status.
- Delay: Hub alarms after a delay. Recommended for primary entryways.
- Home: Sensors activate only in Arm (full arm) mode. Recommended for PIR Motion Detectors.
- 24 Hours Silent: Same as 24 Hours but without sound.
- To disable the zone, select 'Close'.
- Scroll to '1' and use the digits keypad to enter a unique Zone Number (0-89).
- Select 'β', 'Synchronizing' will be shown.
- Trigger the wireless sensor to send a transmission signal.
- Once the serial number is added, 'Learning OK' will be shown.
2.6.3. How to Pair an RFID Tag by Panel
- Go to 'Menu > Parts > RFID > Add' and enter.
- Enter a digit from 0 to 9 to designate a unique number for the RFID tag.
- 'Synchronizing' will be shown, and the hub will enter pairing mode.
- Tap the RFID Tag on the RFID read zone of your panel.
- Once the serial number is added, 'Learning OK' will be shown.
2.6.4. How to Pair a Wireless Siren by Panel
- Press and hold the SET button of the siren until you hear two beeps. The siren will enter sniffer mode, and the light ring will blink quickly.
- Press 'β' button on the panel within 6 seconds. The panel will show 'Learn Signal Sent' and send a transmission signal to the siren.
- The siren will give four beeps for successful indication.
2.7. Hardwired Zone Connections
Zone 1, Zone 2, and Zone 3 are EOLR supervised zones supporting both open and closed circuit devices with a response time of 300msec. Maximum zone resistance: 11000 ohms, plus EOLR.
- Connect closed circuit devices in series on the high (+) side of the loop. The EOL resistor must be connected in series with the devices, following the last device.
- Connect open circuit devices in parallel across the loop. The 10000-ohm EOLR must be connected across the loop at the last device.
Refer to the Hardwired Zones Connections Diagram below.

Figure 3: Hardwired Zones Connections Diagram (part of a larger image, showing EOLR connections for Z1, Z2, Z3).
Important: If the EOLR (End of Line Resistor) is not at the end of the loop, the zone will not be properly supervised, and the system may not respond to an open circuit on the zone.
Go to 'Main Menu > Parts > EOL Zone' on your hub to set the type and mode of three wired zones. The default numbers for these zones are 100, 101, and 102.
3. Operating Instructions
3.1. How the Alarm System Works

Figure 4: Alarm System Working Principle.
- The hub receives an arming command (from remote, RFID tag, ARM button, or app) and enters "Armed" mode.
- When a Door/Window Sensor detects an opening, or a PIR Motion Sensor detects motion, the sensor sends a signal to the panel.
- The hub internal siren sounds at 85dB on-site. An optional external siren sounds at 100dB.
- The app sends a push notification and text message to your phone (if enabled). The hub also makes phone calls to preset numbers.
3.2. Arm/Disarm Status
The system has three security levels:
- Away Arm: Use when no one is home. All sensors are monitored. The alarm sounds if a door/window opens or motion is detected. Notifications and calls are sent.
- Home Arm: Use when you're home and want security. Normal and Delay sensors are monitored, but interior sensors are not. The alarm sounds if a door/window opens. Notifications and calls are sent.
- Disarm: Use when you don't want security. No sensors are active, except 24-HOUR sensors. The alarm won't sound.
3.3. How to Arm and Disarm
You can arm and disarm your home in three ways:
- Entering your passcode on the panel and pressing Arm/Stay Arm/Disarm icons.
- Tapping an RFID Tag on the panel.
- Using the remote tag or the app.
When you hear the panel's chime alert, the screen will show a countdown before the alarm sounds.
3.4. Exit/Entry Delay
Exit Delay allows you to leave your home after arming. Entry Delay allows you to disarm the system upon entry before an alarm occurs. The default Exit Delay is 40 seconds, and Entry Delay is 30 seconds.
3.4.1. How to Change the Exit Delay
Go to 'Menu > Settings > Delay > Exit Delay' and enter to edit the delay value (0-255 seconds).
3.4.2. How to Change the Entry Delay
Go to 'Menu > Settings > Delay > Entry Delay' and enter to edit the delay value (0-255 seconds).
3.5. Auto Schedule
You can set an arm schedule and a disarm schedule to automatically arm or disarm the system at a daily time.
- Go to 'Menu > Timer > Arm Schedule/Disarm Schedule' and enter.
- Scroll to the time field and enter the Daily Arm/Disarm time (in 24-hr), then tap to backspace.
- Scroll to the 'on/off' toggle and tap to enable the schedule.
- Press 'β' to save your schedule.

Figure 5: Scheduled Arm/Disarm Function.
3.6. Make a Call on Panel
On the home screen, tap one of the digits to enter the dialing screen, enter the number, then tap 'β' to dial.
Important: The call will be canceled if the cellular network is not registered, the system is armed, or in voice alarming.
3.7. How to Record a Voice Message by Panel
Your system can record, play, and delete a brief voice message (up to 20 seconds).
- Go to 'Menu > Record' and enter.
- Select 'Record'.
- When 'Recording' is shown, speak into the panel. Recording stops automatically after the time expires.
- The panel plays back the message automatically.
- Press 'β' to save the message.
- To adjust record time: Go to 'Menu > Record > Duration'.
- To playback recorded message: Go to 'Menu > Record > Play'.
- To delete recorded message: Go to 'Menu > Record > Delete'.
4. Maintenance
4.1. Battery Information
- Alarm Panel: Built-in battery.
- Door Sensor: Includes CR2032 3V battery.
- Motion Sensor: Requires 2x AA batteries (not included).
- Remote Control: Built-in battery.
- Smoke Sensor: Requires 9V battery (not included).
The hub includes a backup battery that lasts for more than 3 hours if electrical power is lost. The battery icon in the upper-right corner shows the battery level. If the backup battery is very low, the icon turns red, and low battery notifications will be sent to registered phone numbers. The battery is fully charged within 8 to 12 hours.
4.2. General Care
Keep the alarm system clean and free from dust. Avoid exposing the devices to extreme temperatures or moisture.
5. Troubleshooting
5.1. Cellular Network Connection Issues
If the cellular icon (X or ) is always shown, the hub has not connected to a network. Ensure the SIM card was inserted when the hub was off and that the SIM card's security code is permanently deactivated.
5.2. Wi-Fi Connection Issues
- Ensure you are connecting to a 2.4GHz Wi-Fi network, not 5GHz.
- Verify your Wi-Fi password does not contain spaces or special characters.
- Place the hub close to your router during setup.
- A slow network speed (below 2Mbps upload) can affect performance.
- Disable AP isolation in your router settings.
5.3. App Notifications
After installing the app, the phone will request permission to receive notifications. Forbidding notifications may result in app running failure.
5.4. Loss/Restoration of AC Power
If AC power is lost or restored, the hub will send an alert notification to let you know.
5.5. Tamper Detection
If someone tampers with the Smart Hub and removes it from its back plate, the hub will send an alert notification.
5.6. Reset to Factory Settings
Go to 'Menu > Settings > Initialization' and enter. This will delete all paired accessories and event logs. You cannot reset if the Smart Hub is locked.
6. Specifications
| Component | Specification |
|---|---|
| Hub | |
| Power Supply | Micro USB 110/220VAC to 5V, 1000mA |
| Backup Battery | 3.7V, 500mAh Rechargeable Lithium Battery |
| Consumption | <55mA |
| Radio Frequency | 433MHz |
| GSM | 850/900/1800/1900MHz |
| Wi-Fi | IEEE802.11b/g/n |
| Operation Temperature | 0~55β |
| Remote | |
| Power Supply | 12V27A (contained) / CR2032 3V (contained) |
| Standby Current | <5uA |
| Alarm Current | <15mA |
| Transmitting Distance | <80m (Open Area and No Interference) |
| Radio Frequency | 433MHz |
| Operation Temperature | 0~55β |
| Door/Window Sensor | |
| Power Supply | CR2032 3V (excluding) / 12V23A (excluding) |
| Standby Current | <8uA |
| Alarm Current | <15mA |
| Transmitting Distance | <80m (Open Area/No Interference) |
| Radio Frequency | 433MHz |
| Operation Temperature | 0~55β |
| PIR Motion Sensor | |
| Power Supply | 2*AA battery (excluding) / 9V battery (excluding) |
| Standby Current | <15uA |
| Alarm Current | <25mA |
| Detection Scope | <12m/110Β° |
| Transmitting Distance | <80m (Open Area and No Interference) |
| Radio Frequency | 433MHz |
| Operation Temperature | 0~55β |
| RFID Tag | |
| Chip | 4100/4200 |
| Frequency | 125KHz |
| Read Distance | <2cm |
| Package Dimensions | |
| Length | 11 cm |
| Width | 6 cm |
| Height | 4 cm |
| Weight | 1.3 kg |
For a comprehensive list of accessories and their configurations, please refer to the package content table:

Figure 6: Package Content for various W7B models.
7. User Tips
- Language Switching: The system supports 11 languages. You can switch the system language via the app or directly on the panel.
- App Control: Utilize the Tuya/Smart Life app for remote control, monitoring, and receiving notifications.
- Voice Control: The system is compatible with Alexa voice devices for convenient voice control.
- Scheduled Arm/Disarm: Take advantage of the scheduled arm/disarm function to automate your security routine.
- RFID Tags: Use RFID tags for quick and easy arming and disarming of the system.
8. Warranty and Support
For any technical assistance, warranty claims, or further inquiries, please contact the eMastiff Official Store directly. You can find their contact information on the product's purchase page or through the AliExpress platform.
You can also find additional guides and documents in PDF format here.





