H400 WiFi + 4G Tuya Smart Alarm System

Key Features

1. Remote control via the Tuya app – arm or disarm the alarm from anywhere using your phone.

2. Built-in WiFi module – fast and stable connection to the 2.4 GHz network, without the need for a control panel.

3. 4G SIM card slot – allows you to send SMS/PUSH notifications and automatically make emergency calls to saved numbers even without Wi-Fi access, ensuring reliable communication in every situation.

4. Emergency power supply – the built-in 3.7 V / 1500 mAh lithium-ion battery ensures the system operates even after a mains power cut, allowing for continued monitoring and sending notifications for approximately 15–24 hours depending on the activity of the alarm system.

5. Supports multiple alarm modes – "Home", "Away", "Disarm" mode and instant SOS button.

6. Possibility of system expansion – support for up to 52 sensors, 6 remote controls and 6 RFID tags (2 RFID key fobs included in the set).

7. 125kHz RFID tags – quick disarming of the system without using a code, ideal for children and seniors. A wide range of RFID tags are available for separate purchase.

8. Tamper alarm – additional protection against attempts to dismantle or manipulate the device.

9. LED indicators – colored LEDs on the panel indicate, among other things, alarm arming, Wi-Fi connection, low battery level and power status, providing a quick and clear overview of the device's operation.

10. Modern, compact design – fits perfectly into any interior.

Reliable notifications

An alarm system equipped with a 4G SIM card slot will automatically send SMS/PUSH messages or call pre-set emergency numbers whenever a threat is detected. This way, you'll always be aware of the threat —no matter where you are or whether you have Wi-Fi coverage.

This is an ideal solution for vacation homes, garages, offices, or facilities where internet connection may be limited . All you need is an active SIM card – the system will take care of the rest.

Easy installation and operation

An alarm system is an intelligent solution that allows you to effectively protect your home, apartment or office without the need for complicated installation.

The device works wirelessly and connects to a mobile app , so you can remotely control the alarm from anywhere – arm, disarm, receive notifications, or check the status of sensors.

Installation is incredibly simple – just mount the panel to the wall, connect the power supply, and you're done. You can start protecting your home in just minutes – without cables or professional help .

Expand your system

The device is fully compatible with a wide range of accessories . You can easily connect it to additional motion sensors, door and window sensors, remote controls, RFID tags, and even 433 MHz outdoor sirens – all without the need for wires.

This allows you to easily expand the system and adapt it to the size and layout of your home or business .

All compatible accessories are available in our assortment .

Technical specifications

• Power supply: DC 5V / 1A (USB-C port)
• Standby current consumption: < 100 mA
• Built-in battery: 3.7V / 1500mAh lithium-ion (emergency operation)
• SIM card: 4G (not included)
• Wireless connectivity: WiFi: 2.4 GHz (IEEE 802.11 b/g/n), Accessories: 433 MHz (EV1527 protocol)
• Signal range (accessories): up to 100 m in open space
• Maximum number of devices: 52 sensors, 6 remote controls, 6 RFID tags
• RFID frequency: 125 kHz
• Supported alarm modes: Home, Away, Disarm, SOS
• LED indicator: shows connection status, alarm, battery status
• Operating temperature: from -10°C to +50°C
• Humidity: <95% (non-condensing)
• Dimensions: 134 x 101 x 16 mm
• Weight: 191 g

The set includes

• 1x H400-4G Alarm System
• 1x USB-C cable
• 1x Charging Cube
• 1x Mounting kit
• 2x RFID keychains
• 1x User Manual

The Polish manual is available as an electronic download in the attachment. You can find it above or below our product description .