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4g Industrial Router(SR700)
4g Industrial Router(SR700)
4g Industrial Router(SR700)
4g Industrial Router(SR700)
4g Industrial Router(SR700)

4g Industrial Router(SR700)

The SR700 industrial router 4G offers unparalleled connectivity with dual-SIM support for network backup, 5 Ethernet ports for flexible device connection, high-speed 4G LTE CAT4 technology, and the powerful Linux OpenWrt system for customization and advanced features.
  • Network SupportIndustrial-grade 4G module, supporting seven-mode networks
  • ModelSR700
  • VoltageWide power input DC 5~36V (expandable 5-60V)
  • Interface 1 WAN port, 4 LAN ports, 1 RS232, 1 RS485
  • BrandKEY-IOT
  • Dimensions 126*44*126mm
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This powerful device is designed to meet the demanding requirements of industrial IoT applications, ensuring high-speed and stable data transmission channels.


Key Features

1. Versatile Connectivity Options
One of the standout features of the SR700 industrial router 4G is its support for 5 Ethernet ports. This allows for flexible connectivity options, enabling users to connect multiple devices simultaneously. Whether you need to connect sensors, actuators, or other IoT devices, the SR700 has you covered. Additionally, the router supports optional WLAN functionality, providing wireless connectivity when needed.


2. Robust Network Backup Capabilities
The SR700 industrial router 4G boasts impressive network backup capabilities. With support for both wired and wireless backup, as well as dual-operator network backup through dual SIM cards, this router ensures uninterrupted connectivity even in the event of network failures. This feature is particularly crucial for mission-critical IoT applications where downtime is not an option.


3. Rugged Industrial Design
Designed with industrial environments in mind, the SR700 is built to withstand challenging conditions. Its rugged enclosure and industrialized design enable it to operate reliably in harsh environments. Whether deployed in factories, warehouses, or outdoor locations, the SR700 industrial router 4G delivers dependable performance.


4. Powerful Linux OpenWrt System
Under the hood, the SR700 is powered by a robust Linux OpenWrt system. This open-source platform facilitates user secondary development, providing comprehensive guidelines for customization. Users can tailor the router's functionality to their specific needs, leveraging the power and flexibility of the Linux ecosystem.


5. Comprehensive Security Features
Security is a top priority in IoT networks, and the SR700 industrial router 4G delivers comprehensive security features. It supports various VPN functions, including PPTP, L2TP, IPSEC, OPENVPN, GRE, GRETAP, and Vxlan. These VPN protocols ensure secure and encrypted data transmission, protecting sensitive information from unauthorized access.

6. Efficient Remote Management
Efficient remote management is essential for large-scale IoT deployments, and the SR700 industrial router 4G has you covered. It supports SNMP and integrates with the StarLink STAR DEVICE MANAGER StarCloud platform, enabling centralized network management. Administrators can easily monitor, configure, and troubleshoot devices remotely, streamlining network operations.


7. High-Speed Wireless Connectivity
The SR700 industrial router 4G supports 4G LTE CAT4 high-speed networks, providing fast and reliable wireless connectivity. For specialized applications, an optional 1.8GHz private network is available, ensuring dedicated bandwidth and enhanced security.


8. Flexible Installation Options
In terms of installation flexibility, the SR700 offers multiple options. It can be mounted on a rail, placed on a desktop, or wall-mounted, adapting to various deployment scenarios. This versatility makes it suitable for a wide range of industrial IoT applications.



The SR700 industrial router 4G is a powerful and feature-rich solution for seamless IoT connectivity. With its support for 5 Ethernet ports, dual-SIM network backup, 4G LTE CAT4 high-speed networks, and Linux OpenWrt system, this router delivers unparalleled performance and flexibility. Its industrialized design, comprehensive security features, and remote management capabilities make it an ideal choice for industrial IoT deployments. Whether you're building a smart factory, deploying a large-scale sensor network, or connecting remote assets, the SR700 industrial router 4G provides the reliable and secure connectivity you need to unlock the full potential of your IoT ecosystem.

Technical Parameters
Memory 128MB
WIFI (optional) 2.4G supports 802.11b/g/n, with a maximum speed of 150Mbps
Network support Industrial-grade 4G module, supporting seven-mode networks
System time Time synchronization using NTP technology, with built-in RTC
WAN port 1 WAN port
LAN port 4 ports (10M/100M/1000M adaptive MDI/MDIX port)
SIM card interface 2 slots (drawer-type card slot, supporting 1.8V/3V SIM/UIM cards)
Reset 1 (reset button)
Antenna interface 2 ports (3G/4G antenna, 50-ohm impedance, SMA female inner hole interface)
1 port (2.4G antenna, 50-ohm impedance, SMA inner pin interface)
Power terminal 1 terminal (2-pin 3.81mm pitch connector)
Console port 1 port.
Indicators 9 (1 PWR indicator, 1 SYS indicator, 3 signal strength indicators, sim1, sim2, 1 WiFi indicator, 1 NET indicator)
Power Characteristics  
Power External power adapter (12V 1A)
Operating voltage Wide power input DC 5~36V (expandable 5-60V)
Standby power consumption 150~230mA@12V DC
Operating power consumption 250~310mA@12V DC
Operating conditions  
Operating temperature -35~+75℃ (-31~+167℉)
Storage temperature -40~+85℃ (-40~+185℉)
Operating humidity 5%~95% (non-condensing)
Device ventilation Natural heat dissipation ,no noise
Physical Characteristics  
Enclosure Full metal enclosure
Dimensions Length*width*height 126*44*126mm (excluding antenna and installation accessories)
Installation method Desktop placement, rail installation, wall mounting
Weight Net weight: 0.67KG (excluding antenna and installation accessories)
Gross weight: 0.95KG (with accessories and packaging box)
Device Safety and Reliability  
Safety and Reliability Reverse polarity protection, overvoltage protection, overcurrent protection; Ethernet interface built-in 1.5KV electromagnetic isolation protection; RS232/RS485 interface built-in 15KV ESD protection; SIM/UIM card interface built-in 15KV ESD protection
Protection level IP30
Certification Compliant with CCC, RoHS
MTBF ≥ 100,000 hours
Software Features  
Network access Supports APN VPDN
Access authentication Supports CHAP/PAP authentication
LAN protocol Supports ARP, Ethernet
WAN protocol Supports static IP, DHCP, PPPoE, PPP
IP applications Supports Ping, Trace, DHCP Server, DHCP Relay, DHCP Client, DNS relay, DDNS, Telnet
IP routing Supports routing
NAT function Supports network address translation
Industrial protocols Supports environmental protection 212 protocol, supports MQTT, MUDBUS, and other industrial protocols
Network Security
Firewall Full state packet inspection (SPI), prevention of denial of service (Dos) attacks, filtering of multicast Ping packets, access control lists (ACLs), content URL filtering, port mapping, virtual IP mapping, IP-MAC binding
Data security IPsec VPN/L2TP/PPTP/GRE/OPEN VPN/CA certificate
Backup function Supports wired, 4G, and Wi-Fi triple backup
Link online monitoring Sends heartbeat packets for detection and automatically reconnects when disconnected
Embedded watchdog Equipment runs self-checking technology, and equipment automatically repairs faults
WLAN (optional).
Protocol Standards IEEE 802.11b/g/n
Speed Supports 150Mbps
Security features Open system, shared key, WPA/WPA2 authentication, WEP/TKIP/AES encryption
Operating mode AP, Client mode
Transmission distance 100m (actual transmission distance depends on the environment)
Integrated DTU function Supports TCP, UDP transparent transmission mode, TCP Server mode, supports Modbus RTU to Modbus TCP bridge, supports DCUDP, DCTCP mode
Network Management  
QoS management Supports bandwidth limitation, IP speed limit
Configuration method Supports telnet, web, ssh, and console configuration methods
Upgrade method Supports web upgrade, FOTA upgrade method
Log function Supports local system logs, remote logs, serial port output logs
Network management function Supports StarLink STAR Device Manager platform, batch management
Simple network management function Supports SNMP v1/v2/v3, supports SNMP TRAP function
Traffic management Supports traffic threshold setting, supports traffic statistics and traffic alert functions
Maintenance tools Ping, route tracking
Status query System status, modem status, network connection status, route status





Q & A

Shipping Time and Logistics

We have a large stock of products readily available, and we can typically ship orders within 1-3 business days. For customized products, the shipping time may vary depending on the specific requirements, but it generally takes around 2-4 weeks. We collaborate with several renowned logistics companies, offering a variety of express delivery options such as SF Express, EMS, and DHL to ensure timely and secure product delivery.

Custom Development Services

In addition to our standard products, we also offer custom development services to our clients. Whether you have any special feature requirements or application scenarios, our experienced engineering team can provide customized development and optimization based on your needs. The customization process typically takes 1-3 months, and we work closely with you to ensure that the final delivered product fully meets your requirements.

Product Warranty and After-sales Service

All our products undergo rigorous testing and come with a 1-year warranty. If any quality issues arise during the warranty period, we provide free repair or replacement services. Beyond the warranty period, we also offer long-term technical support and maintenance services. Customers can contact our after-sales team via phone, email, or other channels, and we will respond promptly and provide solutions.




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