Beijing Yingchuanglihe Electronic Technology Co., Ltd. stands at the absolute forefront of environmental monitoring engineering. As a premier high-tech Chinese manufacturer, we specialize in high-accuracy relative humidity sensors, digital transmitters, and multi-parameter air quality data loggers designed for complex enterprise infrastructures.
Utilizing high-stability sensing elements imported from Switzerland and Germany, our product family delivers unmatched reliability, ensuring long-term drift is minimized in critical application scenarios ranging from high-speed railway networks to hyper-scale cloud data centers.
Explore our CE and RoHS certified Ethernet, WiFi and LoRaWAN products engineered for demanding ambient monitoring installations.
High-performance IAQ monitoring gateway integrating ozone detection with high-accuracy temperature and humidity acquisition.
Wholesale High-Performance APEM-5930G
Custom Ethernet environmental data logger featuring integrated indoor air quality & carbon monoxide safety tracking capabilities.
Custom APEM-5930G Ethernet Logger
OEM industrial-grade chemical gas monitoring sensor providing direct digital output for corrosive sulfur and nitrogen oxides.
OEM APEM-5930G Ethernet Sensor
Multi-variable meteorological monitoring unit measuring atmospheric pressure alongside precise humidity and thermal values.
China APEM-5930P Ethernet Sensor
Fully compliant temperature-humidity-pressure transmitter designed for cleanroom differential pressure monitoring schemes.
CE Certified APEM-5930P Sensor
Factory-direct bulk pricing on network-enabled barometric and humidity measurement equipment for research laboratories.
Wholesale APEM-5930P Ethernet Sensor
Long-range wireless low-power transmitter built for agricultural and warehousing environments where wiring is cost-prohibitive.
OEM APEM-5736 LORA Sensor
Specialized hazard monitoring system coupling standard relative humidity detection with industrial safety electrochemical cells.
Custom APEM-5930G O₂ & H₂S LoggerIn the modern international supply chain, specifying environmental monitoring instrumentation demands strict adherence to rigorous engineering guidelines. Sourcing from a factory certified under CE (Conformité Européenne) and RoHS (Restriction of Hazardous Substances) standards is no longer optional—it is a critical requirement for regulatory compliance, risk mitigation, and operational continuity.
The CE mark indicates that a humidity sensor conforms to all relevant European safety, health, and environmental protection requirements. For electronic instrumentation, this primarily involves the Electromagnetic Compatibility (EMC) Directive 2014/30/EU and the Low Voltage Directive (LVD) 2014/35/EU.
In industrial settings, electromagnetic noise from heavy machinery, motors, and high-frequency communication protocols can introduce substantial electrical interference. Our CE-certified transmitters, such as the APEM-5930P and APEM-5930G series, feature integrated EMI filtering, multi-layered PCB layouts, and differential signal processing lines. This level of engineering prevents false readings or data degradation caused by electrostatic discharges (ESD) or high-frequency transient surges, which are common in electrical cabinets and production workshops.
RoHS compliance dictates that electrical and electronic equipment does not contain more than the maximum permitted levels of lead (Pb), mercury (Hg), cadmium (Cd), hexavalent chromium (Cr6+), polybrominated biphenyls (PBB), and polybrominated diphenyl ethers (PBDE), as well as key restricted phthalates (DEHP, BBP, DBP, DIBP). Under directives 2011/65/EU and amending directive (EU) 2015/863, compliant manufacturing protects both end-users and the environment during waste disposal.
At our production facilities in Beijing, we enforce a strict chemical management process: Lead-Free Soldering: We utilize lead-free SAC305 (Sn-3.0Ag-0.5Cu) solder alloys across all surface mount technology (SMT) reflow lines, ensuring solid mechanical joints that resist thermal fatigue. Eco-Friendly Housings: Polycarbonate and ABS enclosures are sourced exclusively from verified raw material suppliers, guaranteeing zero toxic flame retardant contamination. Sub-component Verification: Every resistor, capacitor, and micro-controller undergoes incoming quality control (IQC) via X-ray fluorescence (XRF) screening to verify compliance before assembly.
Low-cost sensors often suffer from rapid calibration drift, high hysteresis, and vulnerability to moisture saturation. Yingchuanglihe solves this by using state-of-the-art capacitive polymer humidity sensors and bandgap temperature sensors imported directly from leading Swiss and German semiconductor manufacturers. These chips provide typical accuracies of ±2% RH and ±0.3°C, with an annual drift rate of less than 0.25% RH, ensuring stable operation for years without frequent manual recalibration.
How digital environment transmitters drive uptime, regulatory compliance, and carbon footprint reduction globally.
Modern buildings utilize smart ventilation algorithms to balance energy efficiency with occupant comfort. Symmetrical temperature, humidity, and dew point measurements allow controllers to optimize enthalpy-based outdoor air intake, reducing commercial HVAC load by up to 20%.
Server racks generate substantial heat, necessitating precise monitoring of containment aisles. Maintaining relative humidity within ASHRAE standards (typically 40% to 55% RH) prevents electrostatic discharge and tin whiskers, minimizing unexpected hardware failures.
The cold chain logistics sector relies on continuous environmental validation. Under GDP (Good Distribution Practice), pharmaceutical products and perishable foodstuffs must be cataloged throughout transit, rendering networked Ethernet/WiFi loggers essential for auditing.
Reflecting 18 years of innovation, growth, and key partnerships in environmental monitoring.
The company was established, introducing our first intelligent environmental monitoring terminal utilizing the TCP/IP network protocol. Concurrently, the v1.0 release of our centralized monitoring server software platform was deployed.
Partnered with Mocha Software to co-develop and launch the TH-5939 series environmental monitoring devices, natively supporting the Simple Network Management Protocol (SNMP) for seamless IT infrastructure integration.
Collaborated with Switzerland's COMLAB to develop the TH-5869 ruggedized Ethernet environmental monitor. Successfully deployed across key high-speed rail corridors, including the Beijing-Kowloon, Beijing-Shanghai, and Wuhan-Guangzhou railway lines.
In partnership with Founder Technology, we released the APEM-6100 Ethernet monitor. This was one of the earliest environmental sensors in the market to incorporate Power-over-Ethernet (IEEE 802.3af PoE) technology, simplifying field deployment by running power and data through a single cable.
Established key business relations with Foxconn. Our environmental sensors became part of Foxconn's baseline infrastructure monitoring standard, enhancing precision control in precision electronic assembly cleanrooms.
Co-engineered the next-generation APEM-5900 intelligent terminal with Baidu. Installed thousands of nodes at Baidu's Yangquan Data Center. Upgraded our software suite to manage complex multi-parameter sensor arrays.
Expanded our software monitoring ecosystem horizontally. In 2019, we introduced a specialized outdoor enclosure monitoring subsystem, deployed globally for Huawei's and China Merchants Huaruan's ETC expressway toll monitoring projects.
Designed rugged integration boxes and edge compute gateways for Beijing's Autonomous Driving Road Test Zones. In 2024, established joint business divisions with Beijing Enterprises Water Group, as well as a Beidou high-precision deformation monitoring division with the Beijing University of Civil Engineering and Architecture.
Explore how our specialized sensors adapt to different environments and system protocols.
We utilize the APEM-5930 series to monitor thermal gradients across equipment racks. Dual power paths (PoE + DC) ensure continuous monitoring even during localized UPS switches.
Enclosures deployed at defense supply sites utilize our moisture-resistant polyurethane potting compounds, preventing salt spray corrosion and guaranteeing sensor survival in harsh environments.
Leveraging the APEM-5736 LoRa wireless sensor, commercial growers monitor transpiration conditions across vast fields without running physical signal wires.
Co-designed with Beijing Enterprises Water Group, our pipeline monitoring solutions offer high IP-rated ingress protection against continuous high-humidity environments.
Integrated into roadside edge compute stations, providing structural microclimate diagnostics and preventive warnings to avert system overheating during peak processing loads.
The APEM-5930P tracks barometric pressure, temperature, and relative humidity, maintaining the required positive pressure gradient to prevent cross-contamination.
As a vertically integrated manufacturer, we specialize in delivering custom solutions tailored to your specific application requirements. Whether you need custom communication protocols, unique physical form factors, or specialized sensor packaging, our engineering team is here to assist.
Each sensor is calibrated inside a high-stability environmental test chamber against a primary laboratory-grade dew point standard. Our 5-step quality verification cycle includes:
Material screening via XRF analysis ensures RoHS compliant lead-free components.
High-speed pick-and-place systems and nitrogen-inert solder reflow ovens maintain high assembly quality.
Automated calibration chambers verify accuracy across the full operating range.
All devices undergo continuous thermal stresses to screen out early-life failures.
We maintain a comprehensive quality management system certified to major international standards.
ISO9001 Qualification
Enterprise Quality Standard
Design Patent Registry
Utility Innovation Certificate
CE EMC Compliance
RoHS Certificate
Frequently asked questions regarding environmental monitor specification, protocols, and compliance.
Select from our comprehensive line of Power-over-Ethernet and wireless transmitters built for smart automation.
Ethernet transmitter featuring optional external probes, ideal for environmental chambers and complex duct installations.
OEM APEM-5930E Ethernet
Combines wired Ethernet connectivity with WiFi failover, ensuring reliable data transmission for smart facilities.
Custom APEM-5930W Ethernet
Standard Power over Ethernet temperature and humidity transmitter designed for IT server enclosures.
China APEM-5930 PoE Sensor
Advanced carbon monoxide monitoring sensor providing real-time data streaming over standard Ethernet connections.
China APEM-5930G IAQ Logger
High-precision Power over Ethernet environmental sensor configured with customizable firmware protocols.
OEM APEM-5930 PoE Transmitter
Integrated temperature, humidity, SO₂, and NO₂ sensor offering real-time atmospheric readings for safety monitoring.
China APEM-5930G Gas Sensor
Industrial-grade gas monitoring gateway configured for chemical processing and municipal wastewater facilities.
Wholesale APEM-5930G Oxygen
All-in-one cleanroom air quality monitor tracking volatile organic compounds, ozone, temperature, and relative humidity.
Wholesale TVOC & O₃ Sensor
YCLH Sensor