China Modbus Temperature And Humidity Sensor Supplier & Factories

Providing Swiss-grade precision, industrial stability, and advanced multi-protocol communication solutions for worldwide intelligence applications.

Featured Series

High-Accuracy Modbus Environmental Sensors

Integrate our CE/RoHS-certified multi-parameter ethernet and RS485 solutions designed for next-generation automated tracking.

APEM-5930G Ethernet Sensor

OEM China APEM-5930G Ethernet Sensor for Temperature, Humidity, SO₂ & NO₂ Monitoring

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APEM-5930G TVOC Data Logger

Custom APEM-5930G TVOC & Formaldehyde Data Logger for Temperature & Humidity

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APEM-5930G Multi Parameter Sensor

China APEM-5930G: Multi-Parameter Sensor for TVOC, O₃, Temperature, Humidity

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APEM-5736 LORA Temperature and Humidity Sensor

Custom APEM-5736 LORA Temperature & Humidity Sensor | Long Range Wireless

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Custom APEM-5930G Sensor

Custom APEM-5930G Sensor: China Factory Suppliers for SO₂ & NO₂ Monitoring

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Custom APEM-5930G Ethernet Data Logger

Custom APEM-5930G Ethernet TVOC & HCHO Data Logger - China Manufacturers

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CE Certified APEM-5930G Sensor

CE Certification APEM-5930G Ethernet Indoor Air Quality & Ozone Sensor

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CE Certified APEM-5930G Ethernet Temperature Sensor

CE Certification APEM-5930G Ethernet Temperature Humidity SO2 & NO2 Sensor

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Industrial Intelligence

Modbus Temperature & Humidity Technology: A Global Status Report

Analyzing critical sensor evolution, signal architecture, and global industrial IoT application landscapes.

In modern industrial and building automation systems, micro-environmental stability is directly tied to operational efficiency, product yield, and safety compliance. The Modbus Temperature and Humidity Sensor stands as the fundamental node of data acquisition inside this landscape. Utilized globally across high-precision facilities—including semiconductor cleanrooms, pharmaceutical warehouses, smart agricultural greenhouses, and critical telecom data centers—the Modbus communication protocol remains the undisputed standard for industrial fieldbus transmission.

Globally, the integration of Modbus RTU (over RS-485) and Modbus TCP/IP (over Ethernet/PoE) is expanding rapidly. The industrial sensor market is transitioning from simple analog transmitters (like 4-20mA or 0-10V loops) toward intelligent, addressable digital nodes. Digital registers enable central programmable logic controllers (PLCs), distributed control systems (DCS), and supervisory control and data acquisition (SCADA) platforms to retrieve not just current measurements, but also internal diagnostic variables, calibration histories, and sensor status indicators. This capabilities-driven transition minimizes manual overrides, reduces overall wiring complexity, and establishes solid support for predictive maintenance frameworks.

China, as the world's leading industrial manufacturing hub, hosts a sophisticated sensor ecosystem. Key factories, such as Beijing Yingchuanglihe Electronic Technology Co., Ltd., have pushed technical boundaries by combining Swiss-designed and German-manufactured sensing elements with robust local engineering, firmware optimization, and cost-effective scaling. This approach delivers exceptionally low temperature coefficients, drift-free performance, and extended operational lifespans at a fraction of standard international costs.

About Yingchuanglihe

18+ Years of Premium Sensor Innovation

A trusted manufacturer delivering high-reliability environmental monitoring units worldwide.

Established in 2007, Beijing Yingchuanglihe Electronic Technology Co., Ltd. has established a formidable presence in the environmental monitoring industry. Located in Beijing, China, our modern manufacturing facility spans over 1,500 square meters and employs over 100 highly skilled professionals.

We focus on developing and supplying a comprehensive range of temperature, humidity, dew point, atmospheric pressure, and multi-parameter gas sensors. These solutions offer the precise, real-time data support required to manage smart environmental systems across major global markets.

Key R&D Milestones: We utilize high-precision sensor chips imported directly from Switzerland and Germany, ensuring long-term operational stability and calibration holding integrity. Our state-of-the-art facilities features 5 automated production lines certified to CE, FCC, and RoHS standards.
Yingchuanglihe Factory Production
18+
Years Industry Experience
1500+
Workshops (m²)
5+
Automated Production Lines
100+
Staff Members

Why Partner with Yingchuanglihe?

Leveraging deep technical expertise, robust supply chains, and customer-first support systems.

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Switzerland & German Chips

We integrate imported high-precision sensor chips, guaranteeing ultra-low drift, high reliability, and excellent resistance to chemical contamination.

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Full OEM/ODM Integration

From physical housing customizations and board layouts to proprietary firmware modifications and specialized register maps, we cater to all requirements.

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Multi-Protocol Support

Our product lines support multiple connectivity architectures including Modbus RTU, Modbus TCP/IP, LoRaWAN, SNMP, and wireless WiFi configurations.

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International Compliance

Products are fully certified with CE, FCC, and RoHS, making them immediately eligible for deployment in European, North American, and Asian markets.

Fast Turnaround & Response

Our engineering team processes custom RFQs and technical questions with complete documentation and drawings in less than 8 hours.

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Extensive Proven Field Use

From high-speed railways (Beijing-Kowloon) to smart data hubs (Baidu Yangquan), our sensors are installed in mission-critical applications.

Application Profiles

Macro-Industry Environmental Solutions

How Yingchuanglihe Modbus sensors solve specific microclimate control challenges globally.

1. Data Centers & Intelligent IT Infrastructure

Data centers run continuously, generating massive heat loads that require precise temperature and humidity management to prevent server failure. Our PoE (Power over Ethernet) sensors allow operators to deploy reliable monitoring directly at the rack level. Utilizing Modbus TCP/IP, the sensors stream critical parameters directly to building management databases without requiring local power converters.

  • Eliminates separate electrical cables via PoE (IEEE 802.3af compliance).
  • Enables real-time dew point calculations, avoiding condensation on server electronics.
  • Successfully deployed at scale in Baidu's Yangquan Data Center.

2. Pharmaceutical Cleanrooms & Laboratories

GMP compliance requires rigorous temperature and relative humidity tracking throughout drug development and storage. Any fluctuation can invalidate expensive research or ruin medical inventory. Our sensors utilize highly precise Swiss sensors, delivering absolute tracking to +/- 0.3°C and +/- 2% RH.

  • Excellent long-term sensor stability with minimal drift over years.
  • Optional configurations incorporating atmospheric pressure monitoring to maintain cleanroom air barriers.
  • Easy-to-clean wall-mount designs compliant with sterile area protocols.

Smart Water & Utility Grids

In partnership with Beijing Enterprises Water Group, we developed customized sensor networks that withstand high humidity, condensation, and chemical vapors in wastewater treatment plants and utility tunnels.

High-Speed Railway Infrastructure

Collaborated with COMLAB (Switzerland) to implement specialized protective Ethernet-based sensor packages along major high-speed rail lines, operating reliably under extreme vibrations and temperature swings.

Autonomous Driving Test Boxes

We design and supply the edge-computing road monitoring enclosures utilized throughout Beijing's autonomous driving test zones, incorporating TVOC, O3, and weather parameter feeds.

Developer Field Guide

Technical Specification & Modbus Address Mapping

A reference architecture guide for systems engineers integrating Yingchuanglihe sensor arrays.

Modbus RTU Register Setup (Example)

Our Modbus RTU sensors communicate using RS485 physical layer interfaces at standard rates (default: 9600 bps, 8 data bits, no parity, 1 stop bit). The table below represents the standard register map for our primary temperature, humidity, and dew point sensors.

Register Address (Hex) Register Description Data Type Scaling Factor Read/Write Type
0x0000 Temperature Value (°C) Signed 16-Bit Integer Value / 10 (e.g., 235 = 23.5°C) Read Only (04)
0x0001 Relative Humidity Value (% RH) Unsigned 16-Bit Integer Value / 10 (e.g., 452 = 45.2% RH) Read Only (04)
0x0002 Dew Point Temp (°C) Signed 16-Bit Integer Value / 10 (e.g., 112 = 11.2°C) Read Only (04)
0x0100 Device Modbus ID Address Unsigned 16-Bit Integer Range: 1 to 247 (Default: 1) Read & Write (03 / 06)
0x0101 Baud Rate Configuration Code Unsigned 16-Bit Integer 0=2400, 1=4800, 2=9600, 3=19200 Read & Write (03 / 06)
Development Milestones

Our Journey of Technological Breakthroughs

How we grew from a network monitoring startup in 2007 into a modern multi-protocol sensor factory.

2007
Company was founded. Developed our first intelligent environmental monitoring terminal based on the TCP/IP network protocol alongside initial environmental monitoring software.
2008
Partnered with Mocha Software to launch the TH-5939 series of environmental monitoring products, which support the SNMP protocol.
2009
Collaborated with COMLAB (Switzerland) to launch the TH-5869 protective Ethernet monitoring device, applied successfully in high-speed rail lines including the Beijing-Kowloon and Beijing-Shanghai lines.
2010
Launched the APEM-6100 Ethernet environmental monitor in cooperation with Founder Technology, adopting Power over Ethernet (PoE) technology.
2012
Partnered with Foxconn, establishing our sensors as one of the standard environmental monitoring systems for electronics production facilities.
2015
Launched the next-generation APEM-5900 Ethernet smart monitoring terminal in partnership with Baidu, deployed at Baidu's Yangquan Data Center.
2018
Introduced a multi-scenario smart solutions system, expanding our market footprint beyond cleanrooms to smart city infrastructure.
2019
Launched our integrated outdoor cabinet monitoring system, deployed in highway projects with Huawei and China Merchants Huaruan.
2021
Contributed to the development of Beijing's autonomous driving test infrastructure, designing custom integrated road boxes and edge gateways.
2023
Supplied key technical infrastructure and multi-parameter sensor arrays for advanced intelligent computing centers.
2024
Established joint divisions with Beijing Enterprises Water Group and co-founded the Beidou High-Precision Deformation Division. Acquired official IDC business licenses.
Future Roadmap

Future Development Trends in Modbus Sensing Technology

How the convergence of edge computing, wireless backhauls, and advanced material science is redefining environmental telemetry.

Ultra-Low Power Wireless Modbus (LoRa / NB-IoT)

Wired RS-485 installations remain standard, but industrial facilities are increasingly adopting wireless hybrid systems. By mapping Modbus registers over LoRaWAN or NB-IoT telemetry, operators can deploy sensors across remote sections of their facilities without cable installation costs.

Yingchuanglihe is leading this shift with our APEM-5736 LoRa series, which transmits industrial-grade Modbus registers over miles while operating on battery power for up to 5 years.

Advanced Multi-Gas Integration (Air Quality Arrays)

Industrial processes require monitoring beyond simple temperature and humidity. Integrated arrays must track total volatile organic compounds (TVOC), ozone (O3), carbon monoxide (CO), sulfur dioxide (SO2), and formaldehyde (HCHO) simultaneously.

Our APEM-5930G platform consolidates these parameters into a single Ethernet device, reducing costs and providing clean data structures for industrial ventilation management.

Specialist Hot-Sale Catalog

Premium Modbus RTU / TCP & LoRaWAN sensors with Swiss elements.

APEM-5930 PoE Sensor

APEM-5930 Power over Ethernet Sensor

Model: APEM-5930. Features Ethernet + POE (DC12~48V) support, tracking temperature, relative humidity, and calculating dew point internally.

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APEM-5930P Barometer Sensor

APEM-5930P Ethernet Pressure Sensor

Model: APEM-5930P. Integrates an atmospheric pressure sensor to assess cleanroom air barrier efficiency alongside temperature and humidity.

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APEM-5930E Sensor Probe

APEM-5930E Extended Probe Sensor

Model: APEM-5930E. Designed with an external probe separated from the core transmitter by a 1-3 meter cable, ideal for duct placement.

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APEM-5930G IAQ Sensor

APEM-5930G IAQ & CO Data Logger

Model: APEM-5930G-IAQ-CO. An industrial-grade sensor integrating temperature, humidity, carbon monoxide (CO), and overall Indoor Air Quality indexing.

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LoRaWAN Indoor Environmental Sensor

LoRaWAN Indoor Environmental Sensor APEM-5616 Pro

Wireless long-range smart building transmitter for corporate environments, facilitating HVAC integration.

APEM-5736 LORA

APEM-5736 LORA Temperature and Humidity Sensor

Low-power wireless module featuring long-range communication. Includes DC12~48V + POE options.

APEM-5930G SO2 NO2

APEM-5930G Ethernet SO₂ & NO₂ Sensor

Combines industrial-grade temperature and humidity monitoring with electrochemical SO₂ and NO₂ gas detection.

APEM-5930G TVOC O3

APEM-5930G TVOC & Ozone Sensor

Simultaneous chemical VOC and ozone monitoring with integrated relative humidity and temperature output.

APEM-5930G O2 H2S

APEM-5930G Oxygen & Hydrogen Sulfide Data Logger

High-reliability configuration for toxic environment telemetry, featuring a built-in relay output.

APEM-5930G TVOC HCHO

APEM-5930G TVOC & Formaldehyde Data Logger

Industrial indoor air quality gateway optimized for building automation and environmental health monitoring.

Support & Knowledge Base

Modbus Temperature & Humidity Sensors FAQ

Get answers to common integration, hardware selection, and protocol execution questions.

Q1: Why choose Modbus RTU over RS485 for temperature and humidity tracking?
Modbus RTU over RS-485 is highly robust, allowing for communication distances of up to 1200 meters without active repeaters. Its differential signaling provides exceptional noise immunity, making it ideal for electrically noisy industrial environments.
Q2: How often do Yingchuanglihe Modbus sensors require calibration?
Thanks to Swiss-made and German-manufactured sensing elements, our sensors exhibit minimal drift (under <0.04°C/year and <0.25% RH/year). Under typical cleanroom or data center conditions, re-calibration is recommended every 2 years. For harsh chemical environments, annual checks are suggested.
Q3: Do your Ethernet sensors support Power over Ethernet (PoE) and Modbus TCP simultaneously?
Yes. The APEM-5930 series supports standard IEEE 802.3af PoE, which allows a single RJ-45 cable to carry both power and Modbus TCP/IP traffic, simplifying installation and reducing wiring overhead.
Q4: Can we order customized registers or custom physical enclosures?
Yes, we provide comprehensive OEM/ODM services. We can pre-configure custom register maps, change default baud rates, print your logo, or redesign physical housings to meet your exact mechanical constraints.
Q5: How does the TVOC and formaldehyde sensor option integrate with Modbus?
Our multi-parameter sensors map additional gases to specific input registers (e.g., TVOC in ppb, HCHO in mg/m³). You can poll these registers sequentially along with temperature and humidity values.
Industrial Collection

Modbus Ethernet & LoRa Solutions Catalog

Deploy reliable environmental monitoring hardware with options tailored for various industries.

OEM APEM-5930W Ethernet Sensor

OEM APEM-5930W Ethernet Sensor from China Factory - Reliable Suppliers

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China High-Quality APEM-5930G

China High-Quality APEM-5930G Ethernet Sensor for SO₂ & NO₂ Monitoring

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OEM China APEM-5930G TVOC

OEM China APEM-5930G Ethernet TVOC & HCHO Data Logger - Factory Supplier

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Wholesale APEM-5736 LORA

Wholesale APEM-5736 LORA Temperature and Humidity Sensor from China Suppliers

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OEM APEM-5736 LORA

OEM APEM-5736 LORA Temperature and Humidity Sensor Manufacturer

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OEM APEM-5930G Ethernet TVOC

OEM APEM-5930G: China Suppliers' Factory Ethernet TVOC & HCHO Logger

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Wholesale China APEM-5930G

Wholesale China APEM-5930G Ethernet Data Logger - Oxygen, Hydrogen Sulfide Sensor

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OEM APEM-5930G Ethernet IAQ

OEM APEM-5930G Ethernet Indoor Air Quality & Ozone Data Logger Manufacturer

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