Wholesale Outdoor Temperature And Humidity Sensor Suppliers & Factory

High-Precision Environmental Sensing Solutions Designed for Global Industrial, Agricultural & Smart Infrastructure Networks

Premium IoT Environmental Sensors

Explore our flagship range of Power over Ethernet (PoE), wireless LoRa, and multi-parameter air quality telemetry modules built to survive extreme outdoor and demanding industrial conditions.

APEM-5930W Ethernet Temperature Humidity Sensor

Custom APEM-5930W Ethernet Temperature Humidity Sensor

Designed for smart monitoring solutions with dual-mode Ethernet/WiFi connectivity, offering robust transmission fallback capabilities.

Factory Pricing: Inquire Directly

Integrations: Modbus/TCP, SNMP

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APEM-5930E Ethernet Temperature Humidity Sensor

Wholesale APEM-5930E Ethernet Sensor with Optional Probes

Features high-precision external Swiss-manufactured probes to isolate heat generated by electronic modules.

Factory Direct: Custom Probe Lengths

Standardization: SGP, ISO Certified

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OEM APEM-5930W Ethernet Sensor

OEM APEM-5930W Ethernet Sensor Manufacturer

Engineered for absolute accuracy in data centers and high-density computing clusters. Full hardware label customization available.

Support: OEM & ODM White Labeling

Protocol: TCP/IP, HTTP Restful API

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APEM-5930G TVOC HCHO Data Logger

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

Multifunctional atmospheric data logger integrating compound gas detection alongside temperature and relative humidity parameters.

Sensors: TVOC, HCHO, Dew Point

Data Storage: Onboard Flash Memory

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APEM-5930G SO2 NO2 Sensor

Custom APEM-5930G Sensor: Real-time SO₂ & NO₂ Monitoring

Industrial-grade outdoor gas & climate transmitter designed for urban environmental analysis and heavy industrial boundary emission logging.

Trace Gases: Sulfur Dioxide, Nitrogen Dioxide

Protection: Anti-corrosive probe sheath

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APEM-5736 LoRa Sensor

OEM APEM-5736 LoRa Temperature and Humidity Sensor

Long battery life and sub-GHz wireless range. Built specifically for remote agricultural terrains and deep infrastructure cavities.

Wireless: LoRaWAN Class A/C Compliant

Battery Life: Up to 5 Years Operation

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APEM-5930G IAQ CO Data Logger

Custom APEM-5930G Ethernet IAQ & CO Data Logger

Integrates carbon monoxide monitoring with high-precision relative humidity & ambient temperature calculations. Excellent stability.

Toxicity Watch: Electrochemical CO sensor

Output: Relay action on alarm state

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CE Certified APEM-5930E Ethernet Sensor

CE Certification APEM-5930E Ethernet Sensor

Conforms fully to European Union standards, validating electrical compliance, sensor accuracy, and housing flame retardancy.

Compliance: CE, RoHS, FCC Listed

Data Link: RJ45 10/100M Ethernet

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Strategic Whitepaper: Architectural Demands of Outdoor Temperature & Humidity Telemetry

In modern industrial IoT (IIoT), smart agriculture, micro-climate monitoring, and data center thermal boundary mapping, the reliability of temperature and humidity metrics is a critical operational parameter. Ambient measurements dictate automatic cooling triggers, HVAC configurations, and early-warning parameters for sensitive micro-components. Standard consumer sensors quickly decay when exposed to high ultraviolet radiation, acid rain, chemical pollutant vapors, and dust buildup. Yingchuanglihe addresses these degradation vectors by engineering heavy-duty sensor housings paired with advanced Swiss-made active sensing chips that maintain long-term calibration stability.

“Operational integrity in telemetry depends entirely on two factors: the chemical passivation of the sensor membrane and the thermal insulation of the active sensing junctions from internal heat pollution. Our APEM-5930 and 5700 Series resolve both engineering challenges.”

Outdoor micro-climatic sensing stations face continuous condensation cycles. When relative humidity reaches 100%, liquid water can settle directly on capacitive humidity sensor membranes, leading to chemical degradation, drift, and structural reading errors. Yingchuanglihe solves this by using protective sintering filter caps (porous PTFE and stainless steel options) that allow gas molecules to pass freely while repelling liquid water droplets and heavy particulates. Additionally, our specialized external-probe modules, such as the APEM-5930E, isolate the sensor element via a physical cable, keeping it clear of internal micro-heating generated by the system's microcontrollers and Ethernet physical layer (PHY) components.

About Yingchuanglihe

Beijing Yingchuanglihe Electronic Technology Co., Ltd. is a high-tech manufacturer specializing in industrial environmental monitoring instrumentation. Since our founding in 2007, we have designed and built precise temperature, humidity, atmospheric pressure, and trace gas sensors to support reliable data intelligence across diverse global markets.

18+
Years Industry Experience
1500+
Modern Workshop (m²)
5+
Automated Production Lines
100+
Skilled Staff Members

China Factory 4.0: Supply Chain Resilience & Efficiency

How our advanced production lines and direct-from-factory sourcing models benefit global enterprise projects.

Automated SMT Assembly

Our Beijing assembly facility leverages high-speed SMT placement systems to run component installation continuously. This automation ensures trace alignment consistency and minimizes defective solder points across multi-layered PCBs.

Precision Calibration Chambers

Every sensor leaves our facility calibrated against high-accuracy reference chambers. We run multi-point temperature and relative humidity cycles, verifying linearity and hysteresis response across extreme ranges before dispatch.

OEM/ODM Customization

From custom cable lengths and protective housings (IP65/67) to protocol adaptations (Modbus RTU, MQTT, Restful APIs), our engineering team tailors telemetry solutions to match client application specifications.

Technology Roadmap & Future Outlook

Exploring how Yingchuanglihe integrates next-generation networking, edge processing, and Beidou satellite accuracy into industrial sensing frameworks.

The IoT paradigm is transitioning from passive data acquisition to localized edge processing. Yingchuanglihe is leading this change by integrating low-power ARM microcontrollers directly into our sensor nodes, enabling on-device anomaly detection and localized data averaging. This filtering minimizes bandwidth consumption and protects network infrastructure from data congestion during storm events.

Our upcoming product generation focuses heavily on hybrid communications. Combining the stability of wired Power over Ethernet (PoE) installations with redundant wireless sub-GHz LoRaWAN links, sensors can seamlessly switch to battery power and wireless routing if the primary cable is damaged. In partnership with Beijing's leading research universities, we are also embedding high-precision Beidou positioning chips directly into our autonomous driving road-test cabinets, correlating environmental telemetry with sub-meter spatial coordinates in real time.

Macro Industry Solutions: Integrated Environmental Systems

From deep-sea pipeline infrastructure monitoring to automated server room climate regulation, explore the physical implementation of our sensors.

High-Density Data Centers

Deployed in critical environments like Baidu's Yangquan Data Center, our PoE-enabled temperature and pressure sensors enable dynamic cooling adjustment. Real-time atmospheric pressure metrics help balance airflow across cooling containment zones to eliminate hot spots.

Autonomous Driving Infrastructure

Yingchuanglihe provides integration units for edge-computing roadside cabinets used in autonomous vehicle testing. Keeping sensitive microcontrollers within correct thermal limits prevents latency spikes during data routing.

Water Distribution Networks

In partnership with Beijing Enterprises Water Group, we develop sensors to monitor humidity buildup inside underground utility chambers, triggering dry-air blowers before electrical components suffer insulation breakdown.

Our Strength

Decades of engineering refinement translates directly to reliability on the job site.

  • 20 Years of Technical Expertise: Long-term stability built on industrial application experience.
  • Imported Swiss & German Elements: Sensirion chips ensure high baseline accuracy and minimal drift.
  • Full Compliance Certifications: Fully evaluated under CE, FCC, and RoHS conditions.
  • Multi-protocol Integration: Modbus RTU/TCP, SNMP, MQTT, and HTTP for versatile system architecture.
  • Fast Response Support: Technical assistance and engineering evaluations returned within 8 hours.

Global Enterprise Sourcing Standards

Addressing the strict requirements of international EPCs, system integrators, and industrial buyers.

When sourcing environmental monitoring hardware at scale, technical directors look beyond cost parameters. They evaluate protocol openness, electrical compliance, MTBF (Mean Time Between Failures), and sensor lifecycle support. Yingchuanglihe addresses these core operational needs through:

1. Open Standards & Interoperability

Our sensors integrate smoothly into existing SCADA and building management systems via standard Modbus and SNMP interfaces, avoiding proprietary lock-in.

2. Lifecycle Calibration Support

We offer replacement sensor caps and recalibration services, allowing operators to sustain reading accuracy without discarding entire telemetry assemblies.

3. Structural Resilience

We use flame-retardant housings and specialized mounting structures to ensure secure mechanical installations in vibrating industrial machinery environments.

Company History

Our journey of technological milestones, from early network protocols to intelligent edge sensing systems.

2007
Beijing Yingchuanglihe was founded. Developed the first intelligent environmental monitoring terminal based on the TCP/IP network protocol alongside our core monitoring software.
2008
Partnered with Mocha Software to launch the TH-5939 series of network-managed monitoring units featuring native SNMP protocol support.
2009
Collaborated with Switzerland's COMLAB to supply protective TH-5869 Ethernet environmental transmitters for high-speed rail systems, including the Beijing-Kowloon and Beijing-Shanghai lines.
2010
Launched the APEM-6100 with Founder Technology, introducing early Power over Ethernet (PoE) power architectures to our network monitoring range.
2012
Partnered with Foxconn to establish our sensors as environmental monitoring standards across cleanroom electronic assembly workshops.
2015
Collaborated with Baidu to launch and deploy the APEM-5900 intelligent network terminal at Baidu's Yangquan Data Center, upgrading our software for multi-parameter logging.
2018
Expanded vertically by introducing smart cabinet monitoring systems for data centers and micro-computing enclosures.
2019
Rolled out integrated outdoor cabinet monitoring units for highway telemetry boxes in Huawei and China Merchants Huaruan ETC systems.
2021
Assisted in developing roadside edge-computing telemetry boxes for Beijing's high-level autonomous driving test zones.
2023
Delivered environmental logging hardware to major intelligent computing centers, protecting server microclimates during heavy processing loads.
2024
Partnered with Beijing Enterprises Water Group for smart pipeline telemetry, and co-founded a Beidou high-precision monitoring division. Obtained our official IDC business qualifications.

Global Exhibitions & Operational Milestones

We actively showcase our latest telemetry developments at major international trade fairs and industrial IoT conferences.

Industrial Quality Certifications

Our quality management systems and hardware designs are fully certified to international standards for safety and performance.

Corporate Management & System Certificates

ISO Registration Certification
System Operation Compliance
Enterprise Credit Quality Certificate
National Patent Document
Software Copyright Protection
Environmental System Audit

Product Compliance & Laboratory Calibrations

CE Electro-Magnetic Interference Verification
FCC Telecommunications Certification
RoHS Hazardous Material Inspection Report
National Measurement Laboratory Calibration certificate

Advanced Multi-Gas & Ambient Telemetry Hardware

Deploy specialized multi-parameter transmitters to capture ambient temperature and relative humidity alongside trace chemical pollutants.

APEM-5930G Oxygen Hydrogen Sulfide Data Logger

Wholesale Oxygen & H₂S Data Logger Factory China

Designed for high-precision environmental tracking in wastewater operations, utility boxes, and chemical processing facilities.

Primary Application: Oxygen, Hydrogen Sulfide

Housing: Industrial Grade Polycarbonate

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China APEM-5930 Power over Ethernet Sensor

China APEM-5930 Power over Ethernet Temp & Humidity Sensor

Simplifies network installations by routing power and environmental data over a single standard RJ45 cable.

Standardization: IEEE 802.3af PoE Compliant

Accuracy: ±0.3°C Temp, ±3% RH

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CE Certification APEM-5930G Ethernet Indoor Air Quality Sensor

CE Certification APEM-5930G IAQ & Ozone Sensor

Monitors ozone concentrations and general indoor air quality metrics alongside relative humidity and dew point.

Parameter Suite: Ozone (O₃), IAQ Index

Integration Interface: Modbus/TCP

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China APEM-5930P Ethernet Sensor

China APEM-5930P Ethernet Temp, Humidity, Pressure Sensor

Measures atmospheric pressure alongside temperature and relative humidity. Ideal for meteorological monitoring and cleanroom ventilation systems.

Pressure Sensor Range: 300 to 1100 hPa

Resolution: 0.01 hPa Barometric Pressure

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OEM APEM-5930E Ethernet Temperature Humidity Sensor

OEM APEM-5930E Ethernet Sensor with Optional Probes

Designed for flexible installations, using a remote probe to ensure accurate readings away from the main transmitter unit.

Probe Type: External Sintered Metal Filter Cap

Cable Standard: 1-3 Meter Dual Shielded

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China APEM-5930G Ethernet Data Logger

China APEM-5930G Ethernet IAQ & CO Data Logger

A heavy-duty environmental gateway designed to log safety parameters and air quality indicators in real time.

Relay Outputs: Built-in 1-channel relay

Digital Inputs: 2-channel monitoring link

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China APEM-5930G Multi-Parameter Sensor

China APEM-5930G TVOC, O₃, Temp, Humidity Sensor

Simplifies air quality networks by monitoring chemical vapors, ozone levels, temperature, and relative humidity in a single unit.

Chemical Analysis: TVOC, Ozone Concentration

Communication Protocol: RS-485 and TCP/IP

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China LoRaWAN Indoor Environmental Sensor APEM-5616

China LoRaWAN Environmental Sensor APEM-5616 Pro

High-performance wireless environmental monitor, designed for easy deployment across large commercial facilities and smart buildings.

RF Standard: LoRaWAN AS923, EU868, US915

Power Supply: High-Energy Lithium Sub-Cell

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Frequently Asked Questions

Technical guidance and installation insights from our environmental engineering team.

Q1: Why is an external probe configuration preferred for outdoor relative humidity sensing?
Outdoor transmitters generate localized heat on their internal circuit boards, especially during active wired Ethernet (PoE) or WiFi transmissions. This small heat output can warm the air inside the housing by 1°C to 3°C. Because relative humidity is highly temperature-dependent, even a 1°C temperature increase can cause relative humidity readings to drop by 3% to 6% RH. Using external probe configurations, such as in the APEM-5930E, physically separates the sensing element from the heat-generating electronics, ensuring accurate ambient measurements.
Q2: How do Yingchuanglihe sensors handle condensation and rain during outdoor operation?
Our outdoor sensors feature custom sintered filter caps made from porous PTFE or stainless steel mesh. These filters act as a hydrophobic barrier, repelling liquid water droplets and dust while allowing air molecules to reach the internal sensing chip. For coastal or industrial locations, we also apply thin-film protective coatings directly to the semiconductor sensor element, shielding it from salt spray, acid rain, and gaseous pollutants.
Q3: Can these sensors integrate directly into third-party industrial platforms?
Yes. Yingchuanglihe sensors are built on open protocols. Our Ethernet-enabled models (APEM-5930 series) support Modbus/TCP, SNMP (v1/v2c/v3), HTTP REST APIs, and MQTT. This enables direct integration into existing SCADA systems, Building Management Systems (BMS), or custom IoT cloud platforms without requiring proprietary gateways.
Q4: What is the recommended calibration interval for industrial-grade ambient sensors?
We use high-quality Sensirion semiconductor chips, which experience minimal long-term drift (typically <0.03°C/year for temperature and <0.25% RH/year for humidity). For general industrial environments, we recommend verification or recalibration every 12 to 24 months. For high-humidity, agricultural, or chemical processing sites, we suggest annual checks to maintain maximum reading accuracy.
Q5: How does Power over Ethernet (PoE) benefit remote sensor deployments?
PoE (supporting IEEE 802.3af standards) routes DC power and high-speed network communication over a single standard Cat5e or Cat6 Ethernet cable. This eliminates the need to run separate electrical wiring to each sensor node, reducing installation costs and simplifying cable management in outdoor cabinets, high-density server rooms, and industrial environments.