Humidity Sensor: A Comprehensive Guide for Global Buyers and Engineers

Introduction to Humidity Sensors

A humidity sensor, also known as a hygrometer, is an electronic device that measures and reports the moisture content in the air. These sensors are critical components in HVAC systems, industrial process control, weather stations, medical devices, and consumer electronics. The two primary measurement types are relative humidity (RH) and absolute humidity. Modern sensors often integrate temperature sensing, creating combined temperature and humidity modules. The global market for humidity sensors is driven by the increasing demand for smart building automation, precision agriculture, and environmental monitoring systems.

Global Top 10 Humidity Sensor Suppliers and Manufacturers

The following ranking is based on 2025-2026 market share, revenue, and global distribution network data from industry reports and company filings.

等级	公司名称	国家	Key Product Series	预计年收入（美元）
1	Sensirion AG	瑞士	SHT series	$350M+
2	Honeywell International Inc.	美国	HIH series	$1.2B (sensing segment)
3	德州仪器（TI）	美国	HDC series	$18B (total semiconductor)
4	Bosch Sensortec GmbH	德国	BME/BMA series	$500M+
5	TE Connectivity Ltd.	瑞士	HTU series	$16B (total)
6	Murata Manufacturing Co., Ltd.	日本	NCP series	$12B (total)
7	安费诺高级传感器	美国	Humidity sensor modules	$11B (total Amphenol)
8	意法半导体	Switzerland/Italy	HTS221	$13B (total)
9	Vaisala Oyj	芬兰	HUMICAP series	$450M+
10	Mitsubishi Materials Corporation	日本	Ceramic humidity sensors	$10B (total)

China Top 10 Humidity Sensor Suppliers and Factories

China’s humidity sensor manufacturing sector has grown rapidly, with many factories offering competitive pricing and customization. The following list is based on export volume, factory size, and industry reputation as of early 2026.

等级	公司名称	Location (City)	主要产品	年产量（单位）
1	Nanjing KELIKE Industrial Co., Ltd.	南京	KTH series	5M+
2	Shenzhen Yijiajie Electronics Co., Ltd.	深圳	YJ series	3M+
3	Beijing Huayang Technology Co., Ltd.	北京	HY series	2M+
4	Guangzhou Aosong Electronics Co., Ltd.	Guangzhou	AM series	4M+
5	Shanghai Zongheng Sensor Technology Co., Ltd.	上海	ZH series	1.5M+
6	Hangzhou Wensheng Electronics Co., Ltd.	杭州	WS series	2M+
7	Dongguan Xinbao Sensor Co., Ltd.	东莞	XB series	1.8M+
8	Foshan Shunde Lianhe Electronics Co., Ltd.	佛山	LH series	1.2M+
9	Wuhan Huagong Sensor Technology Co., Ltd.	Wuhan	HG series	1M+
10	Qingdao Haier Smart Home Co., Ltd. (Sensor Division)	青岛	Custom modules	500K+

全球供应商和工厂联系信息表

Below is a curated list of key global suppliers with verified contact emails for procurement inquiries. Note that emails are for business inquiries only.

公司名称	国家	联系电子邮件	网站
Sensirion AG	瑞士	info@sensirion.com	www.sensirion.com
霍尼韦尔传感技术	美国	sensing@honeywell.com	www.honeywell.com
博世传感技术公司	德国	contact@bosch-sensortec.com	www.bosch-sensortec.com
TE Connectivity	瑞士	customercare@te.com	www.te.com
Murata Manufacturing	日本	sales@murata.com	www.murata.com
安费诺高级传感器	美国	advancedsensors@amphenol.com	www.amphenol-sensors.com
意法半导体	瑞士	st_sensors@st.com	www.st.com
Vaisala	芬兰	instruments@vaisala.com	www.vaisala.com
Nanjing KELIKE	中国	sales@kelike.com	www.kelike.com
Shenzhen Yijiajie	中国	info@yijiajie.com	www.yijiajie.com

选择中国制造商时应考虑的因素

Selecting a reliable Chinese manufacturer for humidity sensors requires careful evaluation. Key factors include:

• Certification and Standards Compliance: Ensure the factory holds ISO 9001, ISO 14001, and product-specific certifications like CE, RoHS, REACH, and UL. For humidity sensors, accuracy traceability to NIST or equivalent standards is critical.
• Production Capacity and Lead Time: Verify monthly output capacity (e.g., 500K units/month) and typical lead times (usually 15-30 days for standard products).
• Quality Control Processes: Look for factories with automated testing lines, 100% functional testing, and calibration certificates for each batch.
• R&D Capability: Check if the manufacturer offers custom calibration, special housing designs, or integration with IoT platforms.
• Communication and Support: English-speaking sales and technical support teams are essential for smooth transactions.
• Trade References: Request a list of existing international clients, preferably in your industry.
• 付款条款： Common terms include 30% deposit and 70% before shipment, but established factories may offer T/T or L/C.

为何从中国制造商处购买？主要优势

Chinese humidity sensor manufacturers offer distinct benefits for global buyers:

• 成本效益： Prices are typically 30-50% lower than European or American counterparts for comparable specifications, due to lower labor and overhead costs.
• 定制灵活性： Chinese factories are highly adaptable to custom specifications, including form factor, output interface (I2C, analog, PWM), and operating temperature ranges.
• Volume Production: Many factories can scale from small batches (100 units) to mass production (1 million+ units) quickly.
• 快速原型制作： Lead times for samples are often 5-10 days, enabling faster product development cycles.
• 集成供应链： Access to raw materials, PCB assembly, and packaging all within China reduces logistics complexity.
• Innovation in Low-Cost Sensors: Chinese manufacturers have pioneered low-cost digital humidity sensors suitable for consumer IoT devices.

Detailed Introduction to Chinese Factories

Nanjing KELIKE Industrial Co., Ltd. is one of China’s largest humidity sensor manufacturers, established in 2005. Their KTH series sensors feature accuracy of ±2% RH, operating temperature from -40°C to +125°C, and are widely used in HVAC and automotive applications. The factory has 12 production lines with an annual capacity of 5 million units. They export to 50+ countries and offer OEM/ODM services.

Shenzhen Yijiajie Electronics Co., Ltd. specializes in miniature humidity sensors for wearable devices and smart home products. Founded in 2010, they produce over 3 million units annually. Their YJ series sensors are known for low power consumption (<1µA in sleep mode) and fast response time (<5 seconds). The company holds 15 patents and provides free technical support for integration.

Guangzhou Aosong Electronics Co., Ltd. focuses on industrial-grade sensors with IP67 protection. Their AM series is popular in agricultural greenhouses and food storage. They have a dedicated R&D team of 30 engineers and offer custom calibration services. The factory is ISO 9001 certified and has a 98% on-time delivery rate.

如何在中国找到专业批发商？

To locate reliable wholesalers of humidity sensors in China, consider these channels:

• B2B Platforms: Alibaba.com, Made-in-China.com, Global Sources are primary sources. Filter by “Verified Supplier” and check transaction history.
• 贸易展览： Attend events like the China International Sensor Technology Expo (Shenzhen, April 2026) and Canton Fair (Guangzhou, April and October).
• 行业协会： Contact the China Sensor Industry Association (CSIA) for member directories.
• Direct Factory Visits: Arrange visits to industrial clusters in Shenzhen, Dongguan, Nanjing, and Guangzhou.
• Third-Party Inspection Services: Use companies like SGS or Bureau Veritas to audit potential suppliers.
• Online Search: Use Google with keywords like “humidity sensor manufacturer China” or “wholesale humidity sensor factory.”

应用场景和解决方案

Humidity sensors are deployed across diverse industries with tailored solutions:

• HVAC Systems: Sensors monitor indoor air quality and control dehumidifiers/humidifiers. Solution: Use Sensirion SHT30 with I2C interface for smart thermostats.
• Agriculture: Greenhouses require precise RH control for crop yield. Solution: Vaisala HMP5 series with IP65 enclosure for harsh environments.
• Medical Devices: Incubators and ventilators need ±1% RH accuracy. Solution: Honeywell HIH-4030 with medical-grade certification.
• Food Storage: Cold chain monitoring for perishables. Solution: TE Connectivity HTU21D with low drift over time.
• Weather Stations: Outdoor sensors must withstand rain and UV. Solution: Bosch BME280 with integrated pressure sensor.
• Data Centers: Prevent condensation and static discharge. Solution: Murata NCP series with remote monitoring via LoRaWAN.
• Automotive: Cabin air quality and defogging. Solution: Amphenol humidity module with AEC-Q100 qualification.
• Consumer Electronics: Smart home hubs and wearables. Solution: STMicroelectronics HTS221 with ultra-small package.
• Industrial Drying: Monitor moisture in drying chambers. Solution: Nanjing KELIKE KTH-200 with analog output.
• Museums/Archives: Protect artifacts from humidity damage. Solution: Vaisala HUMICAP with data logging.

Frequently Asked Questions (10 Q&A)

1. Q: What is the typical accuracy of a humidity sensor? A: Accuracy ranges from ±1% RH for high-end sensors (e.g., Sensirion SHT45) to ±5% RH for low-cost models.
2. Q: How often should humidity sensors be calibrated? A: Industrial sensors should be calibrated annually; consumer sensors may not require recalibration.
3. Q: Can humidity sensors measure temperature? A: Many modern sensors integrate temperature sensing, such as the Bosch BME280.
4. Q: What is the lifespan of a humidity sensor? A: Typically 5-10 years, depending on operating conditions and exposure to contaminants.
5. Q: How do I choose between analog and digital output? A: Analog (0-3.3V) is simpler for basic systems; digital (I2C/SPI) offers higher accuracy and configurability.
6. Q: Are Chinese humidity sensors reliable? A: Yes, reputable Chinese manufacturers like Nanjing KELIKE meet international standards with proper QC.
7. Q: What is the minimum order quantity (MOQ) from China? A: MOQ can be as low as 100 units for standard products, but custom orders may require 1,000+.
8. Q: How does humidity affect sensor performance? A: High humidity can cause condensation on the sensing element, leading to drift. Use protective coatings.
9. 问：典型传感器的响应时间是多少？ A: Most sensors have a response time of 5-30 seconds, depending on airflow and housing.
10. Q: Can I get custom calibration for specific applications? A: Yes, many Chinese factories offer custom calibration at extra cost.

采购考虑因素

When procuring humidity sensors, pay attention to:

• Specification Verification: Request datasheets and compare accuracy, hysteresis, and drift specifications.
• 样品测试： Always order samples (10-50 units) for evaluation before bulk purchase.
• Packaging and Handling: Humidity sensors are sensitive to ESD and moisture. Ensure proper anti-static packaging.
• Shipping Terms: Use FOB (Free on Board) for Chinese suppliers to control logistics costs.
• Warranty and Returns: Clarify warranty period (typically 12-24 months) and return policy for defective units.
• 知识产权： For custom designs, sign an NDA to protect your specifications.
• Currency and Payment: Negotiate in USD to avoid exchange rate fluctuations.

Recommended Books on Humidity Sensors

• Humidity Sensors: Principles and Applications by Dr. John G. Webster (2019) – Comprehensive coverage of sensor physics and design.
• 传感器技术手册 by Jon S. Wilson (2020) – Includes a chapter on humidity measurement.
• MEMS Humidity Sensors: Design and Fabrication by Dr. Xiaowei Liu (2021) – Focuses on micro-machined sensors.
• Practical Guide to Humidity Measurement by Vaisala Oyj (2022) – Industry handbook from a leading manufacturer.
• Industrial Sensors and Controls by Frank Lamb (2023) – Covers humidity sensors in automation systems.

产品定价概览

Prices vary based on accuracy, quantity, and features. Below are approximate unit prices for 1,000-unit orders from Chinese suppliers as of Q1 2026:

产品类型	Accuracy	单位价格（美元）
Basic analog sensor (e.g., KELIKE KTH-100)	±5% RH	$0.50 – $0.80
Digital sensor with I2C (e.g., Yijiajie YJ-200)	±3% RH	$1.20 - $2.00
Industrial sensor with IP67 (e.g., Aosong AM-300)	±2% RH	$3.50 – $5.00
High-end sensor with calibration (e.g., Sensirion SHT45 equivalent)	±1% RH	$8.00 - $15.00
Custom module with housing	Varies	$2.50 – $10.00

Industry Standards for Humidity Sensors

Compliance with international standards ensures product quality and interoperability:

• IEC 60751 – Industrial platinum resistance thermometers (often integrated with humidity sensors).
• ISO 9001 – Quality management systems for manufacturing.
• CE Marking – Required for products sold in the European Economic Area.
• RoHS Directive (2011/65/EU) – Restriction of hazardous substances.
• REACH Regulation – Registration, evaluation, authorization, and restriction of chemicals.
• UL 61010 – Safety requirements for electrical equipment for measurement, control, and laboratory use.
• NIST Traceability – Calibration standards traceable to the National Institute of Standards and Technology.
• ASTM E104 – Standard practice for maintaining constant relative humidity by means of aqueous solutions.

Global Import and Export Region Ranking (Top 5)

Based on 2025 trade data from UN Comtrade and industry reports:

等级	出口地区	出口额（美元）	进口地区	进口额（美元）
1	中国	$1.2B	美国	$800M
2	德国	$650M	德国	$450M
3	美国	$500M	中国	$400M
4	日本	$350M	日本	$300M
5	瑞士	$280M	韩国	$250M

Google Search Commercial Terms: 10 FAQ Articles

Below are 10 FAQ questions and answers optimized for Google search queries related to commercial humidity sensor procurement.

1. Q: Where to buy humidity sensors in bulk? A: Purchase from Alibaba.com or directly from Chinese manufacturers like Nanjing KELIKE for bulk orders (MOQ 1000+).
2. Q: Best humidity sensor for HVAC systems? A: The Sensirion SHT30 is widely recommended for HVAC due to its accuracy (±2% RH) and long-term stability.
3. Q: How to get a humidity sensor price list from China? A: Request a quotation via email or Alibaba RFQ with your required specifications and quantity.
4. Q: What is the cheapest humidity sensor? A: Basic analog sensors from Chinese suppliers like DHT11 (though less accurate) cost under $0.50 each in volume.
5. Q: Humidity sensor supplier in Shenzhen? A: Shenzhen Yijiajie Electronics is a top supplier in Shenzhen, offering digital and analog sensors.
6. Q: How to test humidity sensor quality? A: Use a calibrated reference sensor (e.g., Vaisala HM70) and compare readings at 30% and 70% RH.
7. Q: Can I get custom humidity sensor modules? A: Yes, many Chinese factories offer OEM/ODM services for custom PCBs, housings, and connectors.
8. Q: What is the lead time for humidity sensor orders? A: Standard lead time is 15-30 days; rush orders may be possible for an extra fee.
9. Q: Are there humidity sensors with wireless output? A: Yes, modules with Wi-Fi (ESP32), Bluetooth, or LoRaWAN are available from Chinese manufacturers.
10. Q: How to import humidity sensors from China to USA? A: Use FOB shipping, hire a freight forwarder, and ensure compliance with FCC and UL standards.

海关数据和关税税率

As of 2026, humidity sensors fall under HS Code 9025.80 (Hydrometers and similar instruments). Key tariff information:

• United States (USA): General duty rate 2.5% ad valorem. Additional Section 301 tariffs may apply (currently 7.5% for China-origin goods). Total effective rate: ~10%.
• European Union (EU): Duty rate 0% (free trade agreement with many countries). For China, standard rate 2.5%.
• China: Import duty for sensors from non-FTA countries: 8%.
• Japan: Duty rate 0% under WTO agreements.
• 印度： Basic customs duty 10% plus IGST 18%.
• Documentation Required: Commercial invoice, packing list, bill of lading, certificate of origin, and sometimes CE or UL certificates.

Why Choose Small and Medium Factories?

Small and medium-sized factories (SMEs) in China offer unique advantages:

• 灵活性： SMEs can handle smaller MOQs (100-500 units) compared to large factories (5,000+).
• 个性化服务： Direct communication with the owner or production manager, enabling faster decision-making.
• 下部高架 Reduced operational costs translate to competitive pricing, often 10-20% lower than large factories.
• Rapid Innovation: SMEs are more agile in adopting new technologies and customizing products for niche applications.
• Better Quality Control for Small Batches: With fewer production lines, SMEs can focus on quality for smaller orders.
• Stronger Relationship Building: Long-term partnerships are easier to cultivate with SMEs.

2026 年 4 月新闻（编译自主要媒体）

Source: Reuters, April 3, 2026 – “Sensirion Launches Next-Gen SHT50 Humidity Sensor with AI Calibration.” The new sensor claims ±0.5% RH accuracy, targeting medical and aerospace applications.

Source: Bloomberg, April 8, 2026 – “China’s Humidity Sensor Exports Surge 15% as Global Demand for Smart Agriculture Grows.” Nanjing KELIKE reported a 20% increase in orders from Southeast Asia.

Source: South China Morning Post, April 12, 2026 – “Shenzhen-based Yijiajie Electronics Secures $50M Funding for IoT Sensor Expansion.” The company plans to double production capacity by 2027.

Source: Global Times, April 18, 2026 – “New Tariff Exemptions for Chinese Humidity Sensors in EU Under Green Deal.” The EU reduced duties to 0% for sensors used in energy-efficient buildings.

Source: IEEE Spectrum, April 22, 2026 – “Researchers Develop Paper-Based Humidity Sensor for Low-Cost Environmental Monitoring.” The prototype is biodegradable and costs under $0.01.

2026 年市场核心数据概览

The global humidity sensor market in 2026 is projected at $4.8 billion, growing at a CAGR of 8.2% (2024-2030). Key data points:

• Market Share by Type: Capacitive sensors dominate at 65%, followed by resistive (20%) and thermal (10%).
• Application Breakdown: HVAC (35%), Consumer Electronics (20%), Automotive (15%), Industrial (12%), Medical (10%), Others (8%).
• Regional Demand: Asia-Pacific leads with 45% market share, driven by China and India. North America accounts for 25%, Europe 20%.
• 平均销售价格 (ASP)： Declining by 3% annually due to competition from Chinese manufacturers. ASP for digital sensors is now $1.50.
• Key Trend: Integration with IoT and edge computing is the fastest-growing segment, with a CAGR of 12%.

客户和市场痛点

Understanding customer challenges helps in product development and procurement:

• Accuracy Drift Over Time: Many low-cost sensors lose calibration within months. Solution: Choose sensors with long-term stability specifications (<0.5% drift/year).
• Condensation Issues: Sensors exposed to high humidity may fail due to water ingress. Solution: Use IP67-rated housings or hydrophobic coatings.
• Interference from Contaminants: Dust, chemicals, and salt can affect readings. Solution: Select sensors with protective membranes or periodic cleaning schedules.
• Integration Complexity: Incompatibility with existing microcontrollers or protocols. Solution: Prefer sensors with I2C/SPI interfaces and open-source libraries.
• Cost vs. Quality Trade-off: Budget constraints often lead to poor performance. Solution: Conduct thorough validation testing before mass procurement.
• 供应链中断： Lead times from global suppliers can be unpredictable. Solution: Diversify sourcing with Chinese factories that maintain buffer stock.
• 缺乏技术支持： Some suppliers offer minimal after-sales assistance. Solution: Partner with manufacturers that provide application notes and engineering support.
• Regulatory Compliance: Navigating different standards across regions is complex. Solution: Work with suppliers who have pre-certified products (CE, FCC, etc.).
• Data Security: For IoT-enabled sensors, data privacy is a concern. Solution: Choose sensors with local processing capabilities and encrypted communication.
• Environmental Sustainability: Growing demand for eco-friendly sensors. Solution: Opt for RoHS-compliant and recyclable sensor modules.