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4g LTE Modem(DTU200)
4g LTE Modem(DTU200)
4g LTE Modem(DTU200)
4g LTE Modem(DTU200)
4g LTE Modem(DTU200)
4g LTE Modem(DTU200)

4g LTE Modem(DTU200)

  • Network SupportIndustrial-grade 4G module, supports seven-mode full network, supports NB module
  • ModelDTU200
  • VoltageExternal power adapter (DC·9V 1A)
  • Interface2 RS232 and 1 RS485 (or RS422) interfaces, built-in 15KV ESD protection
  • BrandKEY-IOT
  • Dimensions91*58.5*22mm
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The Internet of Things (IoT) is transforming industries by connecting devices and assets to deliver valuable insights. However, realizing the full potential of IoT requires reliable connectivity. This is where 4G LTE WiFi modems come into play. Equipped with the latest 4G LTE technology, these modems provide secure and robust wireless connectivity to enable a broad range of IoT applications.In this article, we will explore how 4G LTE WiFi modems are powering IoT deployments and discuss key capabilities and benefits of using them.

Overview of 4G LTE WiFi Modems

A 4G LTE WiFi modem is a communication device that connects IoT endpoints to a 4G LTE cellular network. It acts as a gateway, allowing devices to access and transmit data over the internet.4G LTE WiFi modems utilize the Long Term Evolution (LTE) wireless broadband standard for high-speed wireless communication. With theoretical download speeds up to 300Mbps, LTE provides significant performance improvements over older 3G networks.Key features of 4G LTE WiFi modems include:

    • 4G LTE connectivity for fast, reliable data transmission
    • WiFi access point for connecting multiple devices
    • Remote management capabilities
    • Robust security mechanisms
    • Industrial-grade designs for harsh environments
    • Global coverage spanning over 200 countries
    • Backward compatibility with 3G/2G networks
    • Low power consumption

Benefits of Using 4G LTE WiFi Modems for IoT

There are several compelling reasons to use 4G LTE WiFi modems to enable wireless IoT solutions:

1. High-Speed Data Rates

The 4G LTE network offers greater bandwidth and lower latency compared to 3G or 2G. This allows for faster data transmission critical for many IoT applications. For example, 4G LTE WiFi modems can support real-time video streaming from surveillance cameras.

2. Reliable Connectivity

LTE provides reliable connectivity even in remote areas or sites with poor network coverage. Its performance is consistent regardless of distance enabling a seamless IoT deployment.

3. Enhanced Security

4G LTE leverages the latest security protocols like AES and PKI to protect against cyber threats. This prevents unauthorized access and man-in-the-middle attacks.

4. Global Scalability

With 4G networks available globally, LTE modems offer seamless scalability. You can deploy IoT solutions anywhere without changing hardware. This simplifies large scale, geographically distributed deployments.

5. Low Power Consumption

LTE modems are designed to be power efficient. Some models offer battery operation lasting years before needing a recharge. This enables deployment in remote locations without easy grid access.

6. Flexible Connectivity Options

4G LTE WiFi modems provide both LTE cellular as well as WiFi connectivity. WiFi allows connecting multiple local endpoints while LTE handles wide area connectivity.

7. Industrial Grade Design

With robust enclosures and extended temperature operation, LTE modems can withstand harsh environments and keep working in extreme conditions.

4G LTE WiFi Modems Enable a Wide Range of IoT Applications

With their wireless capabilities, 4G LTE WiFi modems empower various IoT use cases across industry verticals:

    • Smart City Infrastructure - Connect streetlights, waste bins, environmental sensors for smart city deployments.
    • Smart Agriculture - Monitor soil conditions, crop growth, livestock feeding patterns on farms.
    • Intelligent Transportation - Track vehicles, collect telematics data, digitize supply chains.
    • Industrial Automation - Remotely monitor pipelines, wells, turbines, and heavy equipment in remote worksites.
    • Healthcare Solutions - Enable patient monitoring, asset tracking, and data connectivity for mobile clinics.
    • Retail and Logistics - Provide connectivity for digital signage, point of sale systems, track inventory levels.
    • Energy Management - Connect smart meters, solar inverters, battery storage systems to the cloud.
    • Public Safety and Surveillance - Stream video from security cameras, broadcast alerts over IP networks.


As IoT adoption accelerates, choosing the right connectivity technology is crucial. 4G LTE WiFi modems enable reliable, global, and secure wireless connectivity for organizations rolling out IoT solutions. With capabilities like high-speed data rates, robust security, flexible interfaces and industrial-grade designs, they are an ideal choice for connecting assets and gaining end-to-end IoT visibility.

Hardware Performance


Industrial-grade 16/32-bit communication processor

Network Support

Industrial-grade 4G module, supports seven-mode full network, supports NB module



Serial Ports

1*RS232 and 1*RS485 (or RS422) interface,with built-in 15KV ESD protection

Serial port parameters as follows: Data bits: 5, 6, 7, 8 bits

Stop bits: 1, 2 bits

Parity: None, even, odd parity

Serial port baud rate: 300~230400bits/s


1 PWR light, 1 ACT light, 1 Oline light

SIM Card interface

1 (drawer-type SIM card slot, supports 1.8V/3V SIM/UIM cards, with built-in 15KV ESD protection)

Antenna Interface

1 (3G/4G antenna, impedance 50 ohms, SMA female antenna interface)


Terminal power, with built-in power reverse protection and overvoltage protection

Power Characteristics


Power Supply

External power adapter (DC·9V 1A).

Operating Voltage

Wide power input DC 5~36V

Communication Current


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 Features



Full metal chassis


Length*Width*Height: 91*58.5*22mm(excluding antenna mounting components)

Installation Methods

Desktop placement, DIN rail mounting, wall-mounted


Net weight: 0.205KG (excluding antenna and mounting components)

Gross weight: 0.68KG (with accessories and packaging box)

Device Safety and Reliability


Safety and Reliability

Power reverse protection, overvoltage protection, overcurrent protection; Ethernet interface with built-in 1.5KV electromagnetic isolation protection; RS232/RS485 interface with built-in 15KV ESD protection; SIM/UIM card interface with built-in 15KV ESD protection

Protection Level



Complies with CE,FCC,CCC, RoHS


≥ 100,000 hours


Product Interfaces


Product Dimensions





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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