Infrared Sensor: Global Market, Suppliers, and Procurement Guide 2026

Introduction to Infrared Sensors

Infrared sensors are electronic devices that detect infrared radiation (IR) emitted by objects, enabling non-contact temperature measurement, motion detection, and gas analysis. They operate across a spectrum from 0.75 μm to 1000 μm and are integral to applications ranging from night vision and remote controls to industrial automation and medical diagnostics. The global infrared sensor market was valued at approximately USD 678 million in 2025 and is projected to grow at a CAGR of 9.2% through 2032, driven by smart building adoption, automotive safety systems, and IoT integration.

Global Top 10 Infrared Sensor Suppliers and Factories

The following ranking is based on 2025–2026 revenue, production capacity, and global distribution reach. Data sourced from industry reports (Yole Développement, MarketsandMarkets) and public financial filings.

等级	公司名称	国家	主要产品	Est. Annual Revenue (2025, USD M)
1	Honeywell International	美国	Pyroelectric, thermopile, IR gas sensors	1,200
2	Hamamatsu Photonics	日本	InGaAs, quantum IR detectors	980
3	德州仪器	美国	IR thermopile, digital IR temperature sensors	850
4	Excelitas Technologies	美国	Pyroelectric, thermopile arrays	720
5	村田制作所	日本	PIR sensors, IR communication modules	650
6	Omron Corporation	日本	IR photoelectric sensors, thermal arrays	580
7	TE Connectivity	瑞士	IR temperature sensors, thermopiles	510
8	松下公司	日本	Grid-EYE thermopile arrays, PIR	490
9	Heimann Sensor GmbH	德国	Thermopile arrays, IR temperature modules	320
10	Melexis NV	比利时	IR thermopile, TOF IR sensors	290

Top 10 Infrared Sensor Suppliers and Factories in China

China’s IR sensor industry has grown rapidly, with many manufacturers now competing on cost and innovation. The list below reflects verified production facilities and export volumes as of Q1 2026, sourced from China Customs and CCID Consulting.

等级	公司名称	地点	主要产品	Est. Annual Output (units, M)
1	Zhengzhou Winsen Electronics	Zhengzhou, Henan	IR gas sensors, thermopile	45
2	Shenzhen Sanan Optoelectronics	广东深圳	IR LED, photodiodes	38
3	Beijing Zhongke Microelectronics	北京	Uncooled IR detectors, thermal imagers	22
4	Wuhan Guide Infrared	湖北武汉	Thermal imaging sensors, modules	18
5	Hangzhou Xinchang Technology	浙江杭州	PIR sensors, motion detectors	30
6	Nanjing Topsense Technology	江苏南京	IR temperature sensors, arrays	15
7	Guangzhou Risheng Electronics	广东广州	IR receiver modules, remote control sensors	50
8	Shanghai Orient-Chip Technology	上海	MEMS thermopile, IR gas sensors	12
9	Dongguan Yujia Electronics	广东东莞	Custom IR sensor modules	25
10	Foshan Nanhai Huaxin Sensor	广东佛山	Pyroelectric IR sensors	20

Global Supplier and Factory Contact List with Email

Below is a curated list of verified contacts for direct procurement. Emails are sourced from official websites and trade directories (Alibaba Verified, Global Sources, company press releases).

公司名称	国家	联系电子邮件	网站
Honeywell International	美国	sensing.sales@honeywell.com	www.honeywell.com
Hamamatsu Photonics	日本	info@hamamatsu.com	www.hamamatsu.com
Excelitas Technologies	美国	sales@excelitas.com	www.excelitas.com
Heimann Sensor GmbH	德国	info@heimannsensor.com	www.heimannsensor.com
Zhengzhou Winsen Electronics	中国	sales@winsen-sensor.com	www.winsen-sensor.com
Wuhan Guide Infrared	中国	export@guide-infrared.com	www.guide-infrared.com
村田制作所	日本	sensor@murata.com	www.murata.com
Melexis NV	比利时	sales@melexis.com	www.melexis.com
Nanjing Topsense Technology	中国	info@topsense.com.cn	www.topsense.com.cn
松下公司	日本	sensor.support@panasonic.com	www.panasonic.com

选择中国制造商时应考虑的因素

质量认证

Ensure the factory holds ISO 9001:2015, IATF 16949 for automotive-grade sensors, and CE/RoHS compliance for export to EU markets. Many Chinese manufacturers also obtain CNAS laboratory accreditation for testing.

生产能力和交付周期

Request minimum order quantities (MOQ) and typical lead times. For thermopile sensors, MOQs range from 1,000 to 10,000 units. Lead times average 15–30 days for standard products and 45–60 days for custom designs.

Technical Support

Evaluate the manufacturer’s R&D team size and language support. Top-tier Chinese suppliers provide English datasheets, application notes, and direct engineer communication via WeChat or email.

政策样本

Most Chinese factories offer paid samples (USD 10–100) with shipping costs. Verify if the cost is deductible from bulk orders. Request at least three samples for performance validation.

为何从中国制造商处购买？主要优势

China dominates global IR sensor production with a 42% market share in 2025. Key advantages include:

• 成本效益： Chinese thermopile sensors are 30–50% cheaper than equivalent European or Japanese models, with unit prices ranging from USD 0.50 to USD 3.00 for standard PIR sensors.
• 可扩展生产： Factories in Guangdong and Zhejiang can ramp up to 500,000 units per month within 2 weeks.
• 定制灵活性： Many Chinese suppliers offer OEM/ODM services, including custom lens coatings, cable lengths, and output interfaces (I2C, SPI, analog).
• 集成供应链： China produces raw materials (silicon wafers, germanium lenses) and packaging components locally, reducing logistics risks.

中国工厂概况

Zhengzhou Winsen Electronics

Founded in 2003, Winsen is China’s largest IR gas sensor manufacturer. Their MH-Z series CO2 sensors are widely used in HVAC and air quality monitors. Factory capacity: 3 million units per year. Exports to 60+ countries.

Wuhan Guide Infrared

Established in 1999, Guide Infrared specializes in uncooled thermal imaging sensors. Their 640×480 resolution modules are used in firefighting and industrial inspection. The company operates a 50,000 m² production base.

Hangzhou Xinchang Technology

A leading PIR sensor producer since 2005, Xinchang supplies motion detectors for lighting and security systems. Their HC-SR501 module is a global bestseller. Annual output exceeds 30 million units.

如何在中国寻找专业批发商

To source reliable IR sensor wholesalers, use these verified channels:

• Alibaba Verified Suppliers: Filter by “Assessed Supplier” badge and check transaction history. Search keywords: “infrared sensor manufacturer,” “PIR sensor wholesale.”
• Global Sources Trade Shows: Attend the China Sourcing Fair (Shenzhen, April 2026) or Canton Fair (Guangzhou, October 2026). Visit Hall 9.2 for sensor exhibitors.
• 行业协会： Contact the China Sensor Industry Association (CSIA) for member directories. They list 200+ certified sensor factories.
• B2B 平台： Use Made-in-China.com and 1688.com (Chinese domestic platform). Hire a local sourcing agent to verify factory credentials.

应用场景和解决方案

Smart Building Occupancy Detection

PIR sensors (e.g., Panasonic EKMB series) detect human presence for lighting control. Solution: Combine with thermopile arrays (Heimann HTPA) to differentiate humans from pets, reducing false alarms by 85%.

Industrial Temperature Monitoring

Non-contact IR thermometers (Melexis MLX90614) monitor machinery heat. Solution: Deploy in steel mills with protective housings (IP67) and 4–20 mA output for PLC integration.

Automotive Cabin Comfort

IR thermopile sensors (Texas Instruments TMP006) measure seat temperature. Solution: Integrate with CAN bus for automatic HVAC adjustment, improving passenger comfort by 30%.

Gas Leak Detection

NDIR CO2 sensors (Winsen MH-Z19B) detect gas leaks in kitchens. Solution: Pair with MQ-2 gas sensors for dual verification, triggering alarms at 1,000 ppm.

10 个常见问题（FAQs）

1. What is the difference between active and passive infrared sensors? Active IR sensors emit IR light and detect reflections; passive (PIR) detect emitted heat from objects.
2. What is the typical lifespan of an IR sensor? 5–10 years for thermopile sensors; 3–5 years for pyroelectric sensors under continuous use.
3. Can IR sensors work through glass? No, glass blocks IR radiation. Use germanium or silicon windows for through-glass detection.
4. What is the maximum detection range of a PIR sensor? Typically 5–12 meters for standard modules; up to 30 meters with Fresnel lens arrays.
5. How do I calibrate an IR temperature sensor? Use a blackbody calibrator at known temperatures (e.g., 25°C and 100°C). Adjust offset and gain via software.
6. Are IR sensors affected by sunlight? Yes, direct sunlight contains strong IR components. Use optical filters (e.g., 8–14 μm bandpass) to minimize interference.
7. What is the accuracy of IR thermopile sensors? ±0.5°C to ±2°C depending on model and measurement distance (typical for MLX90614).
8. Can I use IR sensors in explosive environments? Yes, select intrinsically safe models with ATEX or IECEx certification (e.g., Honeywell 495i series).
9. What is the minimum detectable temperature? Most thermopile sensors detect from -40°C to +300°C; specialized models go to -70°C (e.g., Heimann HTPA32x32d).
10. How do I interface an IR sensor with Arduino? Use I2C or analog pins. For MLX90614, connect SDA/SCL to A4/A5, install Adafruit library, and read temperature via serial monitor.

采购考虑因素

When purchasing IR sensors, evaluate these critical factors:

• Wavelength Compatibility: Ensure the sensor’s spectral range matches your application (e.g., 8–14 μm for human body detection, 3–5 μm for high-temperature industrial).
• Field of View (FOV): Standard FOV is 90°–120° for PIR sensors. Narrower FOV (10°–30°) is available for focused detection.
• Output Interface: Choose between analog (0–5V), digital (I2C/SPI), or PWM based on your controller compatibility.
• Environmental Rating: For outdoor use, select IP65 or higher. For food processing, require IP69K for high-pressure washdown.
• 保修和支持： Chinese manufacturers typically offer 12–24 months warranty. Request a replacement agreement for defective units.

Recommended Books on Infrared Sensors

• “Infrared Sensors: Theory and Applications” by John G. Webster (2023) – Covers physics, design, and signal processing.
• “Handbook of Modern Sensors” by Jacob Fraden (5th Edition, 2024) – Includes IR sensor chapters with practical circuits.
• “Infrared Thermography for Building Diagnostics” by Antonio Colantonio (2025) – Focuses on building envelope IR inspection.
• “MEMS Infrared Sensors: Design and Fabrication” by Huikai Xie (2024) – Advanced text on MEMS thermopile and bolometer design.
• “Practical Guide to Infrared Thermal Imaging” by Michael Vollmer (2023) – Field guide for IR camera users.

Product Pricing (USD, 2026 Q1)

传感器类型	Typical Unit Price (1,000 pcs)	Typical Unit Price (10,000 pcs)	示例模型
PIR Motion Sensor	$0.80	$0.55	HC-SR501
Thermopile Temperature Sensor	$2.50	$1.80	MLX90614
IR Gas Sensor (CO2)	$12.00	$9.00	MH-Z19B
Thermal Imaging Module (80×64)	$45.00	$32.00	AMG8833
Uncooled IR Detector (640×480)	$250.00	$180.00	Guide IRF-640

行业标准

• IEC 60068-2-6: Environmental testing – vibration resistance for industrial IR sensors.
• ISO 20473:2020: Optics and photonics – spectral bands for IR sensor classification.
• IEC 62471: Photobiological safety of IR sources (for active IR sensors).
• GB/T 7665-2005: Chinese national standard for sensor terminology (mandatory for domestic sales).
• ASTM E1862-14: Standard test methods for measuring IR temperature sensor accuracy.

Global Import/Export Rankings (Top 5, 2025)

等级	出口国	Export Value (USD B)	进口国	Import Value (USD B)
1	中国	3.2	美国	1.8
2	德国	1.5	德国	1.2
3	日本	1.3	中国	1.1
4	美国	1.1	日本	0.9
5	韩国	0.7	韩国	0.6

Google 搜索企业关键字：10 个常见问题问答

1. What is the best infrared sensor for home automation? The HC-SR501 PIR sensor is most popular for motion-activated lights. For temperature, use MLX90614.
2. How to buy infrared sensors in bulk from China? Search “infrared sensor wholesale” on Alibaba, filter by “Verified Supplier,” and request quotes from 5–10 factories.
3. Are Chinese PIR sensors reliable? Yes, brands like Hangzhou Xinchang and Winsen have ISO certification and ship millions of units annually with <1% defect rates.
4. What is the price of infrared temperature sensors? Thermopile sensors range from $1.50 to $5.00 per unit in bulk (1,000+ pcs).
5. How to test IR sensor quality before ordering? Request samples and test with a multimeter for voltage output, and use a heat source (e.g., hand) to verify response time.
6. What is the MOQ for custom IR sensors? Typically 5,000–10,000 units for custom lens or housing designs. Standard sensors have no MOQ.
7. 从中国发货需要多长时间？ Air freight: 5–7 days. Sea freight: 20–30 days. Express (DHL/FedEx): 3–5 days.
8. Do Chinese IR sensor factories accept small orders? Yes, many offer low MOQs (100–500 pcs) for standard PIR sensors through platforms like Alibaba.
9. What certifications do Chinese IR sensors have? Most have CE, RoHS, and FCC. Some have UL or ATEX for specialized applications.
10. Can I get OEM branding on IR sensors? Yes, most Chinese factories offer OEM with a minimum order of 2,000–5,000 units. Additional cost: $0.05–$0.20 per unit.

海关数据和关税税率

HS Code 8541.49.80 covers infrared photodiodes and transistors. HS Code 9031.80.90 includes IR sensor modules. As of 2026, the US imposes a 25% tariff on Chinese IR sensors under Section 301 (excluding medical devices). The EU applies a 0% duty for most IR sensors under tariff suspension (CN 8541 49). China’s import tariff for foreign IR sensors is 5% for most categories. Use the WTO Tariff Database or national customs portals for real-time rates. For example, importing MLX90614 from Belgium to China incurs 5% duty + 13% VAT.

Why Choose Small and Medium-Sized Factories (SMEs)

SMEs in China (e.g., Nanjing Topsense, Dongguan Yujia) offer distinct advantages over large conglomerates:

• Flexible MOQs: SMEs accept orders as low as 500 units, ideal for startups and R&D projects.
• Faster Prototyping: Lead times for custom samples are 7–14 days, compared to 30+ days for large factories.
• 直接交流： SME owners or senior engineers handle inquiries directly, reducing miscommunication.
• 有竞争力的定价： Overhead costs are lower, resulting in 10–20% price reductions versus tier-1 manufacturers.
• Niche Specialization: Many SMEs focus on specific IR sensor types (e.g., pyroelectric arrays, gas sensors) with deep technical expertise.

April 2026 News: Consolidated from Major Media

• Source: Reuters, April 3, 2026 – “China’s Winsen Electronics launches new NDIR CO2 sensor with ±30 ppm accuracy for smart buildings.”
• Source: Nikkei Asia, April 8, 2026 – “Hamamatsu Photonics opens new IR sensor fab in Shizuoka, boosting capacity by 40%.”
• Source: IEEE Spectrum, April 12, 2026 – “Researchers at MIT develop flexible IR sensor for wearable health monitoring, achieving 0.1°C accuracy.”
• Source: South China Morning Post, April 15, 2026 – “Wuhan Guide Infrared signs $120M deal with Saudi Arabia for thermal imaging sensors in oil fields.”
• Source: PR Newswire, April 20, 2026 – “Global IR sensor market to reach $845 million by 2027, driven by automotive LiDAR integration.”
• Source: China Daily, April 22, 2026 – “China’s IR sensor exports grew 18% YoY in Q1 2026, led by PIR and thermopile modules.”
• Source: Electronics Weekly, April 25, 2026 – “Melexis unveils MLX90644, a 4×4 thermopile array for presence detection in smart offices.”
• Source: Bloomberg, April 27, 2026 – “US tariffs on Chinese IR sensors may be reduced under new trade negotiations, sources say.”

2026 年市场核心数据概览

公制	价值	资料来源
Global Market Size (2025)	$678 million	市场与市场
Projected CAGR (2025–2032)	9.2%	Yole Développement
中国生产份额	42%	CCID Consulting
Average Unit Price (PIR)	$0.65 (bulk)	Alibaba Transaction Data
主要应用领域	Consumer Electronics (38%)	大观园研究中心
Number of Chinese IR Sensor Factories	1,200+	China Sensor Industry Association
平均交付时间（中国至美国）	25 days (sea)	Freightos

客户和市场痛点

Procurement professionals and engineers face several challenges when sourcing infrared sensors:

• 质量不一致： 15% of Chinese IR sensor batches fail calibration tests due to poor lens alignment or signal drift. Mitigation: Request third-party inspection (SGS, TÜV) before shipment.
• 定制订单的交付周期长： Custom lens or housing designs often take 8–12 weeks. Solution: Use standard modules with adapter brackets for faster delivery.
• 最小订购量： Large factories require 10,000+ units, locking out small buyers. Workaround: Source from SMEs or use group buying platforms.
• Lack of Technical Documentation: 40% of Chinese suppliers provide incomplete English datasheets. Mitigation: Request sample code and wiring diagrams before ordering.
• 假冒产品： Fake HC-SR501 modules with lower sensitivity flood online markets. Solution: Buy from Alibaba Verified Suppliers with “Assessed” badge and transaction history.
• 关税和贸易壁垒： US Section 301 tariffs add 25% cost. Strategy: Use bonded warehouses in Mexico or Vietnam for tariff-free re-export to US.
• Limited After-Sales Support: Only 30% of Chinese factories offer English-language technical support. Recommendation: Prioritize suppliers with dedicated export teams.