High-reliability HART to USB conversion for field instrument configuration.
Industrial-grade serial interface supporting multi-point communication.
High-density data collection for large-scale industrial sensor networks.
Precision Modbus protocol solutions for seamless PLC integration.
Features an integrated display for real-time status monitoring.
Cost-effective solution for legacy system upgrades.
China-manufactured excellence for global industrial standards.
Optimized for precision data acquisition and signal processing.
Established Year
Years Experience
Countries Served
R&D Space
Quality Control
Jiaxing Songmao Electronics Co., Ltd. is a high-tech pioneer specialized in the R&D of HART protocol communication products. Our deep technical expertise ensures that every modem and converter we manufacture meets the rigorous demands of modern industrial automation.
In the evolving landscape of Industrial IoT (IIoT), the role of the HART modem manufacturer has transitioned from providing simple hardware to engineering critical bridges for data-driven decision making. The Highway Addressable Remote Transducer (HART) protocol remains the global standard for sending and receiving digital information across analog wires between smart devices and control systems. As a leading manufacturer, our commitment is to provide "Information Gain"—the competitive edge that comes from high-fidelity data acquisition and seamless protocol translation.
Our facility in Jiaxing, China, leverages the world's most robust electronics supply chain. This allows us to offer unmatched advantages to global procurement teams:
The core of our R&D focus lies in the "Translator" role of our devices. Modern factories often run on fragmented protocols. Our HART to Modbus RTU/TCP converters act as the central nervous system for these environments.
Frequency Shift Keying (FSK) Excellence: Our modems utilize advanced FSK technology to superimpose digital signals on top of the traditional 4-20mA analog loop. This allows for simultaneous communication without disrupting the primary variable transmission—a cornerstone of reliable industrial monitoring.
Support for USB, RS232, RS485, and Modbus-TCP to ensure compatibility with all modern PLC and SCADA systems.
Engineered for harsh environments with surge protection, isolation, and wide temperature tolerance (-40°C to +85°C).
Our gateways support up to 32 channels, dramatically reducing the hardware footprint in control rooms.
Navigating the complex regulatory landscape is a primary concern for international buyers. As a dedicated manufacturer, we prioritize:
The industry is moving toward "Smart Instrument Interconnectivity." We are currently integrating GPRS, 4G, and narrowband IoT (NB-IoT) capabilities into our HART data collectors. This allows for remote field instrument diagnostics via the cloud, reducing the need for physical site visits and enabling predictive maintenance through AI algorithms.
Q: Why should we choose a specialized HART modem manufacturer over a general electronics supplier?
A: Specialist manufacturers like Songmao Electronics understand the nuances of the HART protocol, such as FSK signal integrity and impedance matching. General suppliers often lack the technical depth to provide reliable data acquisition in electrically noisy industrial environments.
Q: Can your converters handle multi-drop HART configurations?
A: Yes, our SM100 and SM101 series support multi-drop mode, allowing you to connect multiple smart instruments to a single pair of wires, significantly reducing wiring costs.
Q: How do you ensure the reliability of your China-based supply chain for international orders?
A: We maintain 18+ years of strict quality control and have a proven track record across 40+ countries. Our location in Jiaxing provides us with direct access to logistics hubs, ensuring stable shipping and component sourcing.
High-precision Modbus protocol SM626H-A-0 for industrial sensors.
Reliable interface for demanding industrial signal processing.
The standard choice for field engineers and technicians.
Advanced data transmission for smart instrument networks.
Bidirectional communication for precise control loop feedback.
Top-tier Modbus protocol integration for complex automation.
Optimized for long-distance, high-stability signal relay.
Engineered for mission-critical industrial applications.