IOT Terminals

Industrial-grade wireless terminals for digital and analog data acquisition. Support 4G CAT1, Wi-Fi, and LoRa networking with multi-channel I/O, pulse counting, and transparent transmission for remote monitoring and control.

DI/DO/AI/AO LoRa 12KM 4G CAT1 Pulse Counting Modbus/MQTT
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IOT Terminals

WideIOT WD Series IOT Terminals are industrial wireless terminals that support IO acquisition control and serial port transparent transmission. They support data acquisition and control of multiple channels of DI, DO, AI, AO in industrial sites, and offer LoRa local networking and 4G data upload to the cloud. Thus, they realize wireless data acquisition and remote control of numerous on-site devices such as sensors, instruments, indicator lights, actuators, and main controllers.

Applicable industries:

mining, oil well, water conservancy monitoring, intelligent agriculture, intelligent transportation, intelligent factory, industrial control, building monitoring, medical industry, hotel and other industries

DI/DO & AI/AO Acquisition

Collect digital and analog signals from field sensors and actuators

LORA Local Networking

Wireless data transparent transmission up to 12km via LORA

4G Cloud Connectivity

Remote data monitoring with cloud platforms via 4G cellular

High-Speed Pulse Counting

Support fast pulse counting for flow meters, encoders, etc.

IOT Terminals System Architecture

Terminal Models

Choose from our WD Series industrial terminals designed for various I/O and networking requirements.

WD240 Data Terminal

WD240

LORA/4G,multi-channel AI, AO, DI, DO data acquisition

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WD140 Data Terminal

WD140

supports LORA or 4G wireless serial port transpare

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Key Features

WD Series terminals combine versatile I/O, robust connectivity, and industrial reliability.

Multiple Networking Methods

Supports 4G CAT1, WiFi and LoRa for flexible deployment in any environment.

Multiple IO Interfaces

Supports AI, AO, DI, DO acquisition and control for comprehensive field device management.

Serial Port Data Transparent Transmission

Supports LoRa transparent transmission, MQTT, TCP and UDP data transparent transmission.

Data Acquisition and Cloud Upload

Modbus protocol parsing for serial ports and IO, data upload to cloud via MQTT protocol.

Pulse Timing and Counting

Supports counting and timing functions for flow meters, encoders, and energy monitoring.

Safe, Stable and Reliable

Hardware and software security dongles, wide temperature and wide voltage range, and industrial design.

Flexible Networking Topologies

LoRa local wireless networking and 4G/Wi-Fi cloud connectivity for any scenario.

LoRa Local Networking

Devices form a local LoRa network; data aggregated by a gateway and sent to the cloud via 4G/Wi-Fi. Ideal for areas without wiring.

  • Point-to-multipoint or mesh topology
  • Up to 12KM communication range
  • Supports Modbus RTU over LoRa
  • Bidirectional control of remote I/O
LoRa Networking Diagram

LoRa to 4G/Wi-Fi gateway topology

4G/Wi-Fi Direct to Cloud

Terminals connect directly to the cloud via built-in 4G or Wi-Fi, transmitting serial/I/O data transparently to MQTT/TCP brokers.

  • Plug-and-play 4G CAT1 connectivity
  • Wi-Fi AP/STA modes for local access
  • MQTT, TCP, UDP client support
  • Remote monitoring and control
4G/Wi-Fi Cloud Diagram

Direct 4G/Wi-Fi to cloud platform

Application Scenarios

WideIOT terminals are deployed across diverse industrial sectors

Oil & Gas

Pipeline monitoring, wellhead data acquisition, and remote equipment control

Water Treatment

Water quality monitoring, pump station control, and distribution network management

Energy & Utilities

Power grid monitoring, renewable energy management, and smart metering

Manufacturing

Production line monitoring, equipment maintenance, and quality control systems

Agriculture

Precision farming, greenhouse automation, and irrigation control

Smart Logistics

Warehouse management, fleet tracking, and cold chain monitoring

Smart Buildings

HVAC control, energy management, and building automation systems

Transportation

Traffic monitoring, toll collection, and intelligent transportation systems

Pharmaceutical

Cleanroom monitoring, vaccine storage, and regulatory compliance

Frequently Asked Questions · Quick Answers

Find answers to common questions about our IOT Terminals.

WD140 is basic with 2AI-1DI-1DO; WD240 offers up to 8AI-4DI-4DO; WD331 provides 3 serial ports and Ethernet. Choose based on required I/O count and networking needs. All support LoRa/4G/Wi-Fi and pulse counting.

Yes, high-power LoRa versions support up to 12KM line-of-sight communication. Ideal for wide-area sensor networks in mines, farms, or water conservancy projects.

The terminal supports MQTT protocol with JSON format. Simply configure the cloud broker address and credentials via web interface. It can also connect to WideIOT Cloud, AWS IoT, Azure, or private MQTT brokers.

Yes. You can extend Modbus RTU networks wirelessly using LoRa. The terminal works as a Modbus gateway, collecting data from serial devices and transmitting via LoRa to a central gateway.

5-35V DC wide voltage input, operating temperature -40°C to 85°C, with industrial-grade EMC protection. Suitable for harsh outdoor and industrial environments.

Yes, we provide MQTT JSON development interfaces and can customize data templates to match your cloud platform requirements. Contact our support for details.

Yes, it supports Modbus TCP/RTU, making it easy to integrate with SCADA, HMI, and PLC systems. It can also forward data to OPC UA servers via the cloud gateway.

We offer 1-year warranty and lifetime technical support. 7×24 hotline, online chat, and remote assistance are available. On-site deployment services can be arranged.

Ready to Connect Your Remote Devices?

Our specialists are ready to help you choose the right WD series terminal for your I/O and networking needs.

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