Explore our leading factory-direct PoE and dual-mode climate and hazardous gas monitors engineered for continuous operation.
High-accuracy monitoring gateway powered exclusively by PoE, featuring Swiss high-precision digital temperature and humidity sensing elements.
Integrates electrochemical CO detection with smart indoor air quality indexes, temperature, and relative humidity over Ethernet TCP/IP networks.
High-precision differential pressure and barometric pressure module combined with ambient climate sensors for cleanroom and meteorological use.
Features a dual-mode backup structure. Automatically switches from wired Ethernet to secure Wi-Fi in the event of local infrastructure disruptions.
High reliability climate monitoring with RJ45 connectivity, optimized for server cabinets, high-density server racking, and electrical closets.
Industrial VOC and HCHO tracking unit designed for semiconductor storage facilities and chemical formulation plants, saving long-term log charts.
Enables stable atmospheric pressure differentials tracking with Modbus-TCP and HTTP APIs for building automation and smart HVAC platforms.
Fully compliant CE Certified O3 and IAQ monitoring station, supporting autonomous logging of critical parameters over long time horizons.
In modern industrial, municipal, and commercial environments, the demand for high-fidelity environmental monitoring has transitioned from localized, analog sensor loops to integrated, IP-routable digital architectures. As safety standards and regulatory compliance demands tighten across the globe, industrial procurement managers are identifying a critical bottleneck in legacy technologies: the scalability limit of traditional RS-485 Modbus RTU installations. The emergence of the Ethernet Multi-Gas Sensor as a standard B2B procurement priority addresses this bottleneck directly.
Deploying sensors directly onto a network via standard RJ45 ports provides distinct technical and economical advantages. Power over Ethernet (PoE 802.3af/at) allows factory design and safety engineers to run a single Cat5e/Cat6 cable to handle both low-latency power delivery and high-bandwidth bidirectional communication. This eliminates the requirement for local DC power supply grids near sensor mounting points, reducing installation costs by up to 60%. Furthermore, native TCP/IP routing enables direct communication with high-level monitoring platforms, SCADA configurations, cloud-hosted dashboards, and Enterprise Resource Planning (ERP) systems without relying on fragile external industrial protocol gateways.
18 Years of Excellence in R&D, Automated Calibration, and Global Supply Chain Rigor
Established in 2007, Beijing Yingchuanglihe Electronic Technology Co., Ltd. has developed into a high-technology manufacturing enterprise that integrates design, R&D, automated production, and global B2B distribution. Over the past two decades, we have focused on improving environmental monitoring accuracy by utilizing imported semiconductor chips from industry-leading manufacturers in Switzerland and Germany. This provides our global clients with long-term baseline stability and low sensor drift under heavy-duty industrial operations.
Operating a modern production base in Beijing spanning over 1,500 square meters, our facility utilizes multi-channel temperature, humidity, and gas calibration chambers to ensure that every unit leaving the assembly line matches strict international metrics. We provide extensive OEM/ODM customization services to adapt our core platforms (such as the APEM-5930 series) to bespoke enterprise protocols, physical form factors, and challenging chemical environments.






Follow our roadmap of technological breakthroughs, cross-industry partnerships, and key product innovations.
Establishment of Beijing Yingchuanglihe. Engineered the first intelligent environmental monitoring terminal powered by TCP/IP network protocols alongside our initial software management dashboard.
Formed a strategic collaboration with Mocha Software, launching the TH-5939 series of network-managed sensors supporting SNMP integration natively.
Partnered with Swiss COMLAB to develop the TH-5869 protective high-speed rail environmental sensor system, deployed on key transport routes including the Beijing-Kowloon and Wuhan-Guangzhou lines.
Collaborated with Founder Technology to launch the APEM-6100 series, pioneering integrated Power over Ethernet (PoE) technology inside commercial environmental monitors.
Formed supply agreements with Foxconn, developing custom workshop monitoring platforms that set quality standards across global electronics manufacturing facilities.
Launched the APEM-5900 intelligent gateway in partnership with Baidu. Deployed inside Baidu's Yangquan Data Center to scale up cloud-based environmental tracking.
Expanded our hardware and software architecture to support multi-scenario layouts, focusing on high-density data center hot aisle and cold aisle analysis.
Engineered outdoor dynamic environmental sensor cabinets, deployed by Huawei and China Merchants Huaruan across national ETC highway monitoring networks.
Contributed to Beijing's high-level autonomous driving initiatives by delivering rugged roadside edge computing gateways and road-test sensor nodes.
Developed solutions tailored for AI Supercomputing Centers, targeting high-density server configurations with rapid-response thermal and relative humidity detection.
Co-founded the Beidou High-Precision Deformation Division with BUCEA and scaled smart pipeline projects with Beijing Enterprises Water Group. Secured official IDC carrier licenses.
Custom-engineered sensor integration for complex enterprise and municipal infrastructure networks.
Continuous monitoring of relative humidity, temperature, and outgassing (H2/CO) within battery storage units. Prevents thermal runaway and integrates with cooling controls via Modbus TCP to optimize power usage effectiveness (PUE).
Highly precise barometric and differential pressure sensors (APEM-5930P) to prevent cross-contamination. Tracks volatile organic compounds (TVOCs) and ozone levels during cleanroom sanitization cycles.
Developed with Beijing Enterprises Water Group to monitor toxic and explosive gas build-ups in utility wells. Detects Hydrogen Sulfide (H2S) and tracks Oxygen levels to ensure maintenance crew safety.






A key challenge in multi-gas sensing is sensor cross-sensitivity and thermal drift. Electrochemical cells used for target gas monitoring (such as Carbon Monoxide, Hydrogen Sulfide, or Ozone) can experience sensor drift under fluctuating temperature and relative humidity levels. To address this, Yingchuanglihe engineers utilize a dynamic compensation algorithm powered by Swiss digital temperature and humidity chips.
This sensor fusion technique monitors temperature and relative humidity continuously at the physical sensing boundary, applying dynamic calibration curves to the raw ADC voltage measurements. This maintains high sensor accuracy even during sudden changes in HVAC settings or process gas temperatures. In addition, our NDIR (Non-Dispersive Infrared) carbon dioxide sensors and PID (Photoionization Detector) TVOC elements utilize optical filters and dual-channel reference structures to prevent drift caused by physical emitter degradation over time.
Enterprise Networking Protocol Roadmap:
To integrate with existing building management and SCADA architectures, all YCLI Ethernet devices support parallel stream transmission: Modbus-TCP for local PLC loops, SNMP (v1/v2c/v3) for corporate network management, MQTT for cloud telemetry, and JSON-over-HTTP APIs for quick web integration.



Primary model tracking ambient temperature, relative humidity, and dew point metrics. Deployed natively in network infrastructure.
We support full customized manufacturing runs. Options include custom enclosures, remote sensor probes (APEM-5930E with 1-3m cabling), dual Wi-Fi/Wired configurations (APEM-5930W), and multi-gas arrays (APEM-5930G-TVOC-O3).
Ensuring compliance with international standards and maintaining field presence globally.









































Direct technical guidance covering deployment, calibration cycles, and system configuration.
Browse our multi-gas, data-logging, and specific-parameter monitoring devices below.
Industrial dual-mode climate transmitter utilizing high-precision sensors, with both RJ45 Ethernet and 2.4GHz Wi-Fi capabilities.
High-precision air quality monitor that measures volatile organic compounds, ozone, ambient temperature, and humidity levels simultaneously.
Features a built-in flash log module to record historical indoor air quality and carbon monoxide metrics during network outages.
Rugged safety transmitter tracking oxygen levels and hydrogen sulfide gas inside water treatment systems and industrial pipelines.
High-precision differential pressure sensor combined with ambient temperature and humidity elements, designed for pharmaceutical and lab cleanrooms.
Dynamic dual-link climate transmitter designed for quick mounting within smart buildings and industrial facilities.
Monitors Sulfur Dioxide and Nitrogen Dioxide emissions, designed for industrial emissions checking and urban air monitoring.
Features a external cable probe (1-3 meters) to isolate the network controller from challenging measurement environments.