Dinsafer Helio-A4S-4G Wireless Alarm System – LAN, Wi-Fi & 4G with 1000 m RF Range

The Dinsafer Helio-A4S-4G is a compact, fully wireless smart security system designed for residential installations. It runs on a Freescale ARM Cortex-A7 processor and communicates over LAN, Wi-Fi, and 4G cellular, giving it reliable connectivity indoors and outdoors.

Beyond intrusion detection, the system functions as a home-automation hub: it integrates with IP cameras, smart lamps, and heating devices, and is managed entirely through a free iOS or Android app. The built-in RFID module allows simple operation for children and older users.

Key Features

• Dual-band connectivity: 433.92 MHz RF (up to 1000 m open-area range) and 2.4 GHz Wi-Fi (IEEE 802.11b/g/n, 50 m range)
• 4G cellular support: GSM 850/900/1800/1900 MHz for global GSM carriers, using a Micro SIM card
• 256-bit AES encryption on all wireless communications
• Built-in 100 dB siren (@30 cm), mutable via the app
• Fast Bluetooth and QR-code accessory pairing; unlimited official wireless accessories supported
• Tamper alarm and RF supervision for full peripheral monitoring
• Timed tasks and smart-following automation rules
• RFID module for keypad-free arming by authorised users

Product Benefits

• Single app controls arming (ARM / DISARM / HOME ARM / SOS), live camera feeds, and home-automation scenes from anywhere
• Push and optional SMS notifications for alarm, status, and system events (low battery, power loss)
• Adjustable siren duration and entry/exit delays configured without tools
• Supports LAN/Wi-Fi with DHCP or static IP (IPv4) as well as cellular fallback, keeping the system online even when broadband is disrupted
• Rechargeable 2600 mAh Lithium Polymer backup battery provides up to 8.5 hours of standby if mains power is cut
• Desktop and wall-mount options for flexible placement

Technical Specifications

• Model: Helio-A4S-4G
• CPU: Freescale ARM Cortex-A7
• Encryption: 256-bit AES
• RF Frequency: 433.92 MHz
• RF Range: 1000 m (open area, no obstacles)
• Wi-Fi: 2.4 GHz IEEE 802.11b/g/n, up to 50 m
• Cellular: GSM 850/900/1800/1900 MHz; Micro SIM
• Memory: 512 MB LVDDR3
• Flash Storage: 8 GB eMMC
• Battery: Lithium Polymer, rechargeable and replaceable, 2600 mAh
• Standby Time: 8.5 hours (battery)
• Built-in Siren: 100 dB @ 30 cm
• Power Input: DC 5 V / 2 A
• Operating Temperature: -20 °C to +60 °C
• Operating Humidity: ≤90%
• Shell Material: ABS/PC
• Mounting: Desktop or wall
• App: iOS and Android
• Maximum Accessories: Unlimited (official wireless accessories only; no wired sensors)

Why You'll Love It

• Pre-paired accessories mean the system is ready to arm immediately out of the box
• The guided in-app setup takes minutes — no installer required
• One remote control app handles security, cameras, and home automation without switching between tools
• Alarm can be silenced instantly from a push-notification pop-up, without opening the full app