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  • CWT4421 Support Mqtt Json GSM Rtu GPRS Rtu 4G Data Logger Modbus RTU Modem M2M Iot Gateway
  • CWT4421 Support Mqtt Json GSM Rtu GPRS Rtu 4G Data Logger Modbus RTU Modem M2M Iot Gateway
  • CWT4421 Support Mqtt Json GSM Rtu GPRS Rtu 4G Data Logger Modbus RTU Modem M2M Iot Gateway
  • CWT4421 Support Mqtt Json GSM Rtu GPRS Rtu 4G Data Logger Modbus RTU Modem M2M Iot Gateway
  • CWT4421 Support Mqtt Json GSM Rtu GPRS Rtu 4G Data Logger Modbus RTU Modem M2M Iot Gateway
  • CWT4421 Support Mqtt Json GSM Rtu GPRS Rtu 4G Data Logger Modbus RTU Modem M2M Iot Gateway
CWT4421 Support Mqtt Json GSM Rtu GPRS Rtu 4G Data Logger Modbus RTU Modem M2M Iot Gateway
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CWT4421 Support Mqtt Json GSM Rtu GPRS Rtu 4G Data Logger Modbus RTU Modem M2M Iot Gateway

$140.00-$170.00/ Unit|1 Unit/Units(Min. Order)

Customization:

ODM（Min.Order: 100 pieces）
Customized logo（Min.Order: 100 pieces）
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CWT4421 Support Mqtt Json GSM Rtu GPRS Rtu 4G Data Logger Modbus RTU Modem M2M Iot Gateway

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • IoT Communication Hub: Facilitates seamless data logging and communication between IoT devices, sensors, and cloud platforms via Modbus RTU, MQTT, and JSON protocols.
  • Multi-Interface Connectivity: Supports RS485 serial communication, analog/digital I/O ports, and 4G/LTE/Wi-Fi connectivity for robust network integration.

Key features

  • 1. Material Technology

    • With a compact, robust design, you can ensure reliable operation in diverse environments.

  • 2. Interactive Design

    • With a detachable magnetic base antenna, you can optimize signal strength in challenging environments*

  • 3. Performance Parameters

    • With 4G/LTE connectivity, you can achieve faster data transfer speeds compared to 3G models*

  • 4. Scenario Solutions

    • Designed for industrial monitoring and smart home automation, you can deploy it in both commercial and residential IoT applications.

  • 5. Certification Standards

    • With support for MQTT and Modbus RTU protocols, you can ensure compatibility with industry-standard communication protocols.

Product details

CWT4421 Support Mqtt Json GSM Rtu GPRS Rtu 4G Data Logger Modbus RTU Modem M2M Iot Gateway

The CWT4421 IoT Gateway is a versatile 4G-enabled device designed to bridge IoT devices with cloud networks. Equipped with RS485 interfaces, MQTT protocol support, and a magnetic antenna for optimal signal reception, it offers robust connectivity and flexibility for industrial, environmental, and smart home applications.

Technical specifications

FeatureSpecificationApplication Scenario
4G Connectivity4G/LTE with built-in and magnetic antennaRemote monitoring in areas without WiFi
InterfacesRS485, AI (Analog Input), DI/DO (Digital I/O)Integrating sensors and actuators in industrial systems
Power Supply9-28V DC inputDeployments with variable power sources
ProtocolsMQTT, Modbus RTUIoT networks requiring real-time data transmission
DesignCompact, magnetic base antennaSpace-constrained installations (e.g., smart homes, factories)

Customization guide

Adjustable antenna placement (via magnetic base) to optimize signal strength in diverse environments. Customizable voltage input range (9-28V) to accommodate different power sources.

Get inspired

The CWT4421 empowers seamless integration of legacy devices into modern IoT ecosystems. With its rugged design and versatile interfaces, it’s ideal for transforming industrial machinery, environmental sensors, or home automation systems into cloud-connected solutions.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Connectivity4G/LTE4G/LTE + WiFi4G/LTE + WiFi + 5G*
Ports2 RS485, 4 AI/DI/DO4 RS485, 8 AI/DI/DO8 RS485, 16 AI/DI/DO
Data Throughput100 Mbps200 Mbps500 Mbps
Storage8GB16GB32GB

Supplier's note

  1. Technical Breakthroughs:

    • 4G/LTE Support: Enables reliable communication in remote areas, 20% faster than traditional 3G gateways.
    • Multi-Protocol Compatibility: Simultaneous support for MQTT and Modbus RTU reduces integration complexity.
    • Wide Voltage Range: 9-28V input eliminates the need for external power converters, cutting deployment costs by 15%.

  2. Version Selection Guide:

    • Base Model: Ideal for small-scale deployments (e.g., smart home automation) where basic connectivity suffices.
    • Advanced Model: Best for medium-sized operations (e.g., factory sensor networks) needing WiFi and expanded I/O ports.
    • Pro Model: Tailored for large-scale industrial applications (e.g., oil/gas monitoring) requiring high throughput and 5G readiness.

With the Pro version’s 5G capability, you can achieve real-time data streaming for critical infrastructure. Its expanded storage and ports enable handling of complex, multi-device setups. Meanwhile, the Base Model’s compact design and 4G connectivity ensure cost-effective solutions for entry-level IoT projects.

*Note: 5G support is optional in Pro Model based on regional availability.

Frequently asked questions

  • Which IoT gateway supports 4G and Modbus RTU for industrial automation?

  • How to maintain optimal 4G signal strength for the CWT4421 IoT Gateway?

  • MQTT vs Modbus RTU: Which protocol is better for real-time IoT data logging?

  • Can the CWT4421 be customized for specific sensor integrations?

  • What voltage range does the CWT4421 support for remote IoT deployments?

  • Is the CWT4421 certified for industrial IoT applications?

  • Does the CWT4421 support dual 4G and WiFi for reliable IoT connectivity?

  • How does the CWT4421 handle outdoor IoT deployments with varying power sources?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Connectivity StandardsIndustrial IoT, Remote MonitoringIndustry: 3G (42 Mbps)
Our Base: 4G Cat.1 (10 Mbps DL) ▲
Our Advanced: 4G Cat.4 (150 Mbps DL) ▲▲▲		Faster data transfer for real-time analytics (e.g., smart grids)
Global coverage		Higher cost for Advanced tier; requires 4G SIM card
Communication ProtocolsCloud Integration, Legacy System UpgradesIndustry: Modbus RTU only
Our Base: MQTT + Modbus RTU ▲
Our Advanced: MQTT + Modbus RTU + JSON ▲▲▲		Seamless cloud connectivity (MQTT)
Backward compatibility with legacy systems		Steeper learning curve for multi-protocol configuration
Power FlexibilityOff-Grid Sites, Mobile ApplicationsIndustry: 12V fixed
Our Base: 9–24V ▲
Our Advanced: 9–28V ▲▲		Operates on solar panels or car batteries (e.g., field sensors)
Reduced downtime		No universal power adapter included (requires custom solutions)
Antenna DesignOutdoor Installations, Signal-Weak AreasIndustry: Fixed antenna
Our Base: Magnetic base ▲
Our Advanced: Magnetic + External ▲▲▲		Quick installation (no tools needed)
Optimized signal in rural areas		Magnetic base may loosen in extreme vibrations
Interface CompatibilitySensor Networks, Automation SystemsIndustry: RS485 only
Our Base: RS485 + AI/DI ▲
Our Advanced: RS485 + AI/DI/DO ▲▲▲		Supports analog sensors (e.g., temperature probes)
Direct control of actuators		Larger form factor compared to single-protocol gateways
Data Transfer SpeedReal-Time Analytics, High-Volume LoggingIndustry: 3G (42 Mbps)
Our Base: 4G Cat.1 (10 Mbps DL) ▲
Our Advanced: 4G Cat.4 (150 Mbps DL) ▲▲▲		Enables video streaming (e.g., security cameras)
Reduces latency in critical systems		Higher latency in densely populated urban areas

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