Our top-tier, industry-verified sensor collection integrates advanced Power over Ethernet (PoE), Ethernet networks, and long-range wireless communication to deliver precision data under demanding industrial conditions.
Analyzing modern manufacturing requirements, long-term calibration stability, and why high-accuracy relative humidity (RH) measurements represent a mission-critical asset for modern global supply chains.
In modern industrial facilities, micro-climatic fluctuations can ruin high-value production outputs. Across manufacturing plants, cleanrooms, server racks, and automated logistics networks, relative humidity (RH) control is crucial. If relative humidity is off by even 1.5% to 2%, static electrical discharge can ruin wafer assemblies in semiconductor lithography, alter biochemical properties in pharmaceutical formulations, or cause mold and bacteria growth in international cold-chain logistics.
Our company designs and manufactures specialized environmental monitoring sensors, with an emphasis on high-accuracy relative humidity sensors. Our devices use capacitive polymer or thermal conductivity sensing structures imported from leading technology providers in Switzerland and Germany. By pairing these sensitive elements with robust, noise-resistant processing circuitry and IP-rated enclosures, we deliver sensors that maintain high accuracy and long-term stability, keeping drift well under ±0.1% RH per year.
Global procurement teams face several challenges when integrating ambient temperature and humidity hardware into legacy telemetry suites. We address these challenges by supporting dual-network architectures (Wired and Wireless), built-in Power over Ethernet (PoE) splitters, and versatile Modbus TCP, SNMP, and MQTT communications. This ensures seamless integration with your existing building management systems (BMS), SCADA, and IoT setups.
Located in Beijing, our modern production base spans over 1,500 square meters and houses five automated surface mount technology (SMT) and calibration lines. This enables us to offer high-precision industrial hardware at highly competitive wholesale rates. Operating within Beijing's advanced tech corridor allows us to maintain tight control over component quality while reducing total lead times. We can scale production quickly, from initial prototyping up to container-load orders.
Our engineering division offers extensive OEM and ODM customization services. We customize everything from cable lengths and probe configurations to specialized firmware and multi-parameter sensor arrays (including TVOC, Formaldehyde, CO, O₃, O₂, H₂S, SO₂, and NO₂). Every batch is calibrated inside state-of-the-art climate test chambers, referencing national measurement standards. We supply every shipment with complete CE, FCC, and RoHS certificates, guaranteeing reliable performance on any industrial job site.
Yingchuanglihe (YCLI): Partnering with major global technology leaders to deliver high-performance municipal, telecom, and industrial automation solutions since 2007.
Over nearly two decades, we have evolved from a local hardware developer into a globally recognized supplier of environmental sensors. From high-speed rail networks to hyperscale data centers, our products deliver stable, reliable data monitoring to prevent downtime, improve efficiency, and protect high-value assets.
A proven track record of engineering innovation and successful collaborations with top global and national enterprises.
Our relative humidity and temperature transmitters are deployed globally to protect critical infrastructure, maintain product quality, and keep industrial workplaces safe.
Our PoE-enabled relative humidity and dew point sensors monitor ambient rack temperatures to prevent structural condensation, optimize HVAC fan speeds, and reduce energy consumption.
We deliver extremely precise RH transmitters (accurate to ±1.5% RH) to meet strict GAMP, FDA, and GMP cleanroom standards, keeping sensitive biological materials stable.
Our rugged, high-protection sensors operate reliably in high-humidity municipal wells, pump stations, and underground pipeline networks without water ingress.
Compact, DIN-rail and wall-mounted IP65 transmitters monitor temperature, humidity, and water ingress in remote telecom enclosures and edge computing facilities.
Engineered to survive extreme vibrations and wide thermal ranges, our high-durability sensors monitor conditions inside military warehouses, storage bunkers, and mobile command shelters.
Our sensors integrate directly with SCADA loops via RS-485 Modbus, protecting raw materials, electronics, paper products, and bulk foods from humidity-related damage.
YCLI is a trusted long-term OEM/ODM partner for multinational enterprises, procurement agencies, and technical distributors around the world.
Every year, we display our high-precision relative humidity transmitters, multi-gas IoT gateways, and environmental management platforms at leading industrial technology expos. We enjoy meeting with process engineers, systems integrators, and procurement teams to discuss custom projects, technical requirements, and supply-chain logistics. Our streamlined export processes make shipping to North America, Europe, Southeast Asia, and the Middle East straightforward and efficient.
Every relative humidity sensor is certified to international standards, ensuring reliable performance, safety, and long-term stability.
Our high-performance environmental monitors offer optional remote probes, atmospheric pressure monitoring, and advanced multi-gas detection for comprehensive ambient sensing.
Expert insights on humidity measurement accuracy, sensor drift, interface standards, and system calibration.
We build our relative humidity (RH) sensors with high-stability capacitive polymer chips imported from Switzerland and Germany. These advanced sensing elements are protected by micro-porous PTFE or sintered metal caps, which keep out dust, condensation, and chemical vapors while letting water molecules diffuse freely. Additionally, each device is individually calibrated in our precision climate chambers, using automated curve-fit algorithms to ensure accurate temperature-compensated readings across the entire operating range.
Our relative humidity sensors are built for modern industrial networks. Depending on the model, they support standard Wired Ethernet (RJ45), Power over Ethernet (PoE), RS-485 Modbus RTU, Wi-Fi, and long-range LoRaWAN. On the software side, they integrate directly with BMS, SCADA, and IoT frameworks using Modbus TCP, SNMP (v1/v2c/v3), HTTP JSON APIs, and MQTT for direct cloud communication.
Because our sensors are designed for minimal drift, we recommend recalibrating them every 12 to 24 months under normal operating conditions. In harsh, high-temperature, or highly corrosive environments (such as chemical processing, curing ovens, or agricultural spraying), we recommend checking calibration every 6 months to maintain high measurement accuracy.
Power over Ethernet (PoE), utilized in our APEM-5930 series, allows a single standard Cat5e/Cat6 cable to carry both power and high-speed data. This reduces installation costs by eliminating the need for local AC-DC power supplies or dedicated electrical lines near the sensor. It also makes your network more reliable, as sensors can run off a central UPS-backed PoE switch, keeping critical environmental telemetry active during power outages.
Yes. Our multi-parameter series (such as the APEM-5930G and APEM-5930P) can monitor relative humidity, air temperature, dew point, and barometric pressure. They can also be customized to track industrial gases and air pollutants, including TVOC, Formaldehyde (HCHO), Carbon Monoxide (CO), Ozone (O₃), Oxygen (O₂), Hydrogen Sulfide (H₂S), Sulfur Dioxide (SO₂), and Nitrogen Dioxide (NO₂), making them highly versatile environmental gateways.
As a direct manufacturer, we offer full design and engineering services for bulk orders. This includes branding and custom logos, tailored enclosure shapes and mounts, custom cable lengths, remote probe designs for high-temperature ducts, and specialized firmware (such as custom register mapping or custom network protocols). Direct integration with Beidou high-precision tracking modules is also available.
YCLH Sensor