1 Global Humidity Sensor Market Insight Analysis
The global humidity sensor market is expected to be valued at USD 1,623.43 million in 2025, with a CAGR of 9.12% from 2025 to 2033.
Humidity sensors are electronic devices designed to measure and report the relative humidity and temperature in the air. They play a crucial role in various applications, including agriculture, industry, medical devices, HVAC systems, environment and weather monitoring, automotive, and more. These sensors are essential for maintaining optimal environmental conditions and ensuring the proper functioning of equipment and processes that are sensitive to moisture levels.
Figure Global Humidity Sensor Market Size (M USD) and CAGR (2025-2033)
2 Humidity Sensor Market Growth Drivers and Restraints
Popularization of industrial automation and smart devices
With the advancement of Industry 4.0, the demand for environmental monitoring in factory automation and smart devices has increased significantly. Humidity sensors are indispensable in the energy efficiency management of industrial equipment and the optimization of production processes (such as temperature and humidity control in semiconductor manufacturing and food processing). For example, in the semiconductor industry, humidity control directly affects chip yield, driving the growth of demand for high-precision capacitive sensors.
The rise of consumer electronics and smart homes
Smartphones, wearable devices (such as smart watches, health monitoring devices) and smart home systems (such as smart air conditioners and air purifiers) widely integrate humidity sensors to improve user experience (such as anti-fog lenses and indoor comfort adjustment). According to reports, the annual growth rate of humidity sensor demand in the HAVC (heating, ventilation, and air conditioning) field reached 9.1%, leading the growth rate of other application scenarios.
Growing demand in the medical and life science fields
Medical equipment (such as ventilators, incubators, and drug storage equipment) has extremely high requirements for environmental monitoring accuracy, which promotes the research and development and application of medical-grade humidity sensors. During the pandemic, the demand for medical equipment surged, further accelerating market expansion. It is expected that the market size of humidity sensors for medical equipment applications will grow at a compound annual growth rate of 8.83% to 2026.
Development of environmental monitoring and agricultural technology
Climate change drives the demand for humidity sensors for meteorological monitoring and air quality monitoring, while applications such as soil moisture monitoring and greenhouse environmental control in precision agriculture are also growing. For example, the market size of humidity sensors in the agricultural field is expected to grow from US$141 million in 2020 to US$233 million in 2026, with a compound annual growth rate of 8.66%.
The rise of emerging markets
The Asia-Pacific region (especially China and India) has become the fastest growing region for humidity sensors due to the transfer of manufacturing and consumption upgrades. In 2020, sales in the Asia-Pacific region accounted for 45.44% of global sales, and smart city construction and industrial upgrades in China, India and other countries further drove demand.
Technical bottlenecks and cost pressures
The manufacturing process of high-precision sensors (such as capacitive) is complex and relies on high-end materials (such as metal oxide films), resulting in high costs. At the same time, stability issues (such as drift and contamination) in the long-term use of sensors require frequent calibration, which increases maintenance costs and restricts the popularity of the low-price market.
Market competition and price wars
The industry is highly competitive, with leading companies (such as Honeywell and STMicroelectronics) occupying a major share, while small and medium-sized manufacturers face gross profit margin pressure. For example, Bosch Sensortec’s gross profit margin is only 23.28% (2020), and low-price competition has limited innovation investment.
Supply chain vulnerability
The global supply chain relies on a few key regions (such as semiconductor manufacturing in China), and emergencies such as epidemics may lead to shortages of raw materials (such as wafers and packaging materials). For example, during the epidemic in 2020, the European manufacturing PMI fell to 45%, and supply chain disruptions affected production and delivery.
Technology substitution risk
Some application scenarios (such as simple environmental monitoring) may be replaced by multi-function integrated sensors (such as temperature and humidity integrated sensors), and the market space for single-function humidity sensors may be squeezed. In addition, although the popularization of MEMS technology has promoted miniaturization, it has also increased the pressure of technology iteration.
Uneven regional market development
Due to weak economic foundations, Africa, Latin America and other regions have limited ability to pay for high-end humidity sensors, and the market growth is slow. In 2020, sales in the Middle East and Africa market accounted for only 1.03% of the world, and the growth rate lagged behind other regions.
3 Technological Innovations in the Humidity Sensor Market
Application of MEMS and Nanotechnology
MEMS (micro-electromechanical systems) technology promotes the miniaturization and low power consumption of sensors. For example, Sensirion’s SHTC3 sensor uses CMOSens® technology to integrate humidity and temperature sensors into a single chip with a size of only 2x2x0.75 mm³, which is suitable for wearable devices. The application of nanomaterials (such as graphene and metal oxide nanofilms) improves the sensitivity and response speed of sensors. For example, Goliath Technology’s graphene humidity sensor has a detection accuracy of ±1% RH.
Intelligent and integrated trends
Sensors are combined with IoT and AI to achieve real-time data analysis and prediction. For example, Honeywell’s HumidIcon™ series supports digital output and temperature compensation, and can be directly connected to the intelligent building management system. Multi-parameter integrated sensors (such as temperature and humidity, air pressure, VOCs) have become a trend to reduce the size and cost of equipment. For example, TE Connectivity’s HTU21D integrates humidity and temperature detection and supports I2C communication.
Low power consumption and wireless connection technology
The popularity of wireless technologies such as Bluetooth (BLE) and Wi-Fi has promoted the application of wireless humidity sensors in remote monitoring. Silicon Labs’ Si7006-A20-IM sensor consumes less than 1μJ/measurement, which is suitable for battery-powered IoT devices (such as smart agricultural sensor nodes).
New materials and process innovation
Organic polymers (such as polyimide) replace traditional metal oxides to improve the stability of sensors in high temperature and high humidity environments. For example, Vishay’s capacitive sensors use polymer films and can work stably in the range of -40°C to 125°C. 3D printing technology is also used to manufacture sensor components with complex structures to reduce production costs.
Horizontal expansion of leading companies
Multinational companies expand their market share and technology layout through mergers and acquisitions. For example, Infineon Technologies acquired Cypress Semiconductor to integrate its microcontroller and connectivity businesses and strengthen its sensor solutions in the automotive and industrial fields. TE Connectivity acquired Measurement Specialties to supplement its environmental sensor product line.
Vertical integration
Companies in medical, automotive and other sub-sectors enhance their professional capabilities through mergers and acquisitions. For example, Amphenol Advanced Sensors acquired Telaire Systems to strengthen its market position in medical respiratory equipment sensors; Bosch Sensortec expanded the application of MEMS sensors in autonomous driving (such as in-vehicle environmental monitoring) through mergers and acquisitions.
Emerging market layout
Companies enter emerging markets by acquiring local manufacturers. For example, Honeywell acquired an Indian sensor manufacturer to strengthen its supply chain and distribution network in the Asia-Pacific region. Silicon Labs cooperated with Tuya Smart to enter the Chinese smart home market through a localized ecosystem.
Technology startup mergers and acquisitions
Large companies acquire innovative startups to obtain patents and talents. For example, STMicroelectronics acquired Cyrano Sciences to obtain its gas sensor technology and expand the environmental monitoring market; IDT (acquired by Renesas Electronics) acquired Zarlink Semiconductor to enhance wireless sensor network technology.
4 Global Humidity Sensor Market Size by Type
Capacitive humidity sensors are widely used due to their high accuracy and linearity. In 2025, the market revenue for capacitive humidity sensors is projected to reach 847.13 million USD, accounting for approximately 52.18% of the total market revenue. These sensors measure relative humidity by detecting changes in the electrical capacitance of a dielectric material. They are particularly popular in applications requiring precise measurements, such as HVAC systems, medical devices, and industrial processes. Capacitive sensors are known for their ability to provide accurate readings over a wide range of humidity levels, making them suitable for both indoor and outdoor use.
Resistive humidity sensors are another significant segment of the market. In 2025, the revenue for resistive humidity sensors is expected to be 691.74 million USD, representing about 42.61% of the total market revenue. These sensors operate by measuring the change in electrical resistance of a conductive material as the humidity level changes. Resistive sensors are often used in applications where cost-effectiveness and simplicity are priorities. They are commonly found in consumer electronics, automotive systems, and weather stations. While they may not offer the same level of precision as capacitive sensors, resistive sensors are robust and reliable, making them suitable for a wide range of environments.
Thermal humidity sensors, although a smaller segment, are also important in specific applications. The projected revenue for thermal humidity sensors in 2025 is 84.56 million USD, which is about 5.21% of the total market revenue. These sensors work by measuring the difference in thermal conductivity between dry air and humid air. Thermal sensors are particularly useful in applications where temperature and humidity need to be measured simultaneously, such as in HVAC systems and environmental monitoring. They are known for their stability and ability to provide reliable measurements in challenging conditions.
Table Global Humidity Sensor Market Size and Share by Type in 2025
Type | Market Size (M USD) 2025 | Market Share 2025 |
|---|---|---|
Capacitive | 847.13 | 52.18% |
Resistive | 691.74 | 42.61% |
Thermal | 84.56 | 5.21% |
5 Global Humidity Sensor Market Size by Application
The industry sector is a major contributor. With a market revenue of 410.84 million US dollars in 2025, it accounts for 25.31% of the total market share. In industrial settings, humidity sensors play a crucial role in maintaining optimal production environments. For example, in semiconductor manufacturing, precise humidity control is essential to ensure the quality and yield of chips. In food processing, humidity sensors help prevent spoilage and maintain product quality.
The medical device sector also holds a significant position. In 2025, its market revenue is projected to be 303.59 million US dollars, corresponding to a market share of 18.70%. In medical applications, humidity sensors are used in devices such as incubators to create a stable environment for premature infants, and in drug storage systems to prevent degradation of medications due to improper humidity levels.
The automotive industry is another important area for humidity sensor applications. In 2025, it is expected to generate a revenue of 355.20 million US dollars, with a market share of 21.88%. Humidity sensors in cars are used for functions like automatic climate control, preventing fogging on windows, and monitoring the humidity inside the vehicle to enhance passenger comfort.
Agriculture is also a growing application field. In 2025, the market revenue for humidity sensors in agriculture is forecasted to be 216.09 million US dollars, taking up 13.31% of the market share. These sensors are used for soil moisture monitoring, greenhouse climate control, and ensuring the proper storage conditions for agricultural products.
The HAVC (Heating, Ventilation, and Air Conditioning) sector has a projected revenue of 102.49 million US dollars in 2025, accounting for 6.31% of the market share. Humidity sensors in HAVC systems help maintain comfortable indoor humidity levels, which is crucial for human health and the preservation of building materials.
The environment and weather application area is expected to have a revenue of 168.81 million US dollars in 2025, with a market share of 10.40%. These sensors are used in meteorological stations and environmental monitoring systems to collect accurate humidity data for weather forecasting and environmental research.
Table Global Humidity Sensor Market Size and Share by Application in 2025
Application | Market Size (M USD) 2025 | Market Share 2025 |
|---|---|---|
Agriculture | 216.09 | 13.31% |
Industry | 410.84 | 25.31% |
Medical Device | 303.59 | 18.70% |
HAVC | 102.49 | 6.31% |
Environment and Weather | 168.81 | 10.40% |
Automotive | 355.20 | 21.88% |
Others | 66.40 | 4.09% |
6 Global Humidity Sensor Market Size by Region
In 2025, North America is forecasted to generate a revenue of 627.22 million US dollars from humidity sensors. This region has a well – developed industrial base and a high level of technological innovation. The United States, in particular, is a major driver. It has a strong presence in sectors such as automotive, aerospace, and high – tech manufacturing.
For example, in the automotive industry, the demand for advanced humidity sensors in vehicle climate control systems and interior environmental monitoring is significant. Additionally, the region’s emphasis on environmental monitoring and smart city initiatives further boosts the demand for humidity sensors. The well – established R & D infrastructure and a large number of high – tech companies also contribute to the continuous improvement and application of humidity sensor technology.
Europe is expected to have a market revenue of 410.28 million US dollars in 2025. Europe has a long – standing tradition in manufacturing and environmental protection. In countries like Germany, the automotive and machinery manufacturing industries have strict requirements for environmental parameter monitoring, including humidity. The region’s focus on sustainable development and energy – efficient buildings also drives the demand for humidity sensors in HAVC (Heating, Ventilation, and Air Conditioning) systems. Moreover, Europe has a relatively mature market for medical devices, where humidity sensors are crucial for maintaining proper storage and operating conditions in healthcare facilities.
The Asia Pacific region is projected to earn 547.57 million US dollars in 2025. This region has witnessed rapid economic growth in recent years, especially in countries like China and India. China has become a global manufacturing hub, and the electronics, automotive, and consumer goods industries here have a huge demand for humidity sensors. In addition, the booming smart home market in Asia Pacific, driven by the increasing adoption of IoT (Internet of Things) technology, has further expanded the application scope of humidity sensors. India, with its growing population and infrastructure development, also shows great potential in sectors such as agriculture and building automation, where humidity sensors play an important role.
South America’s humidity sensor market revenue is forecasted to be 26.86 million US dollars in 2025. Although this region’s market size is relatively smaller compared to the others, it still has growth opportunities. Agriculture is a significant sector in South America, and humidity sensors are increasingly being used for soil moisture monitoring and greenhouse climate control. Brazil, for example, as a major agricultural exporter, has a growing need for precise environmental monitoring in agricultural production. Additionally, the region’s gradual urbanization and development of infrastructure also create some demand for humidity sensors in building management systems.
In 2025, the Middle East & Africa region is expected to generate a revenue of 11.49 million US dollars. This region faces unique challenges and opportunities. In the Middle East, the oil and gas industry, along with the development of large – scale infrastructure projects such as smart cities and modern buildings, has a certain demand for humidity sensors. In Africa, with the increasing focus on agriculture modernization and the development of healthcare facilities, the market for humidity sensors is gradually emerging. However, factors such as economic development levels and technological infrastructure still pose some limitations to the rapid growth of the humidity sensor market in this region.
Figure Global Humidity Sensor Market Size (M USD) by Region in 2025
7 Global Humidity Sensor Market Analysis by Major Players
Honeywell
Company Profile
Honeywell International Inc. is a leading diversified technology and manufacturing enterprise headquartered in the United States. Established in 1906, Honeywell has a long history of innovation and excellence in various fields, including aerospace, building technologies, safety and productivity solutions, and specialty chemicals. The company operates worldwide and is known for its commitment to sustainability and technological advancement.
Business Overview
Honeywell’s business portfolio is vast and diverse, covering a wide range of industries. In the humidity sensor market, Honeywell is renowned for its high-quality and reliable products. The company’s expertise in automation control and sensing technologies has positioned it as a market leader. Honeywell’s products are used in critical applications, including HVAC systems, industrial processes, and medical devices. The company’s focus on research and development ensures that its products are at the forefront of technological innovation.
Product Offered
Honeywell offers a comprehensive range of humidity sensors, including the HumidIcon™ Digital Humidity/Temperature Sensors. These sensors provide high accuracy levels, with a relative humidity accuracy of ±4.0% and a temperature accuracy of ±0.5°C. The HumidIcon™ sensors are designed to withstand harsh environments and offer easy integration into various systems. Honeywell’s products are known for their reliability, precision, and ease of use, making them a preferred choice for many industries.
STMicroelectronics
Company Profile
STMicroelectronics is a global semiconductor company headquartered in Switzerland. Founded in 1957, STMicroelectronics has grown to become a leader in the electronics industry. The company specializes in the development and manufacturing of semiconductor technologies, including microcontrollers, connectivity components, and sensors. STMicroelectronics operates in multiple regions, including America, Europe, and Asia-Pacific, and serves a wide range of customers across various industries.
Business Overview
STMicroelectronics is committed to driving innovation and sustainability in the semiconductor industry. The company’s products are used in a variety of applications, from consumer electronics to automotive and industrial systems. In the humidity sensor market, STMicroelectronics is known for its advanced and reliable solutions. The company’s focus on research and development ensures that its products meet the highest standards of performance and quality.
Product Offered
STMicroelectronics offers a range of humidity sensors, including the HTS221TR temperature and humidity sensor. This digital output sensor provides high accuracy and reliability, with a resolution of 16 bits and a temperature range of -40°C to 120°C. The HTS221TR is designed for easy integration into IoT applications and offers low power consumption and fast response times. STMicroelectronics’ sensors are widely used in smart home systems, industrial automation, and environmental monitoring.
Sensirion
Company Profile
Sensirion AG is a leading manufacturer of digital microsensors and systems, headquartered in Switzerland. Established in 1998 as a spin-off from the Swiss Federal Institute of Technology (ETH) Zurich, Sensirion has quickly become a global leader in the field of environmental sensing. The company specializes in the development and production of high-quality sensors for measuring humidity, temperature, and gas flow. Sensirion operates in multiple regions, including the United States, Europe, Asia, and the Middle East.
Business Overview
Sensirion’s business is built on a foundation of innovation and excellence in sensor technology. The company’s products are used in a wide range of applications, from consumer electronics and HVAC systems to medical devices and automotive systems. Sensirion’s commitment to research and development ensures that its products are at the cutting edge of technology. The company’s focus on quality and reliability has earned it a reputation as a trusted provider of sensor solutions.
Product Offered
Sensirion offers a variety of humidity sensors, including the SHTC3 digital humidity sensor. The SHTC3 is designed for mobile and wireless applications, offering high accuracy (±2% RH and ±0.2°C) and low power consumption. The sensor’s small form factor (2 x 2 x 0.75 mm³) makes it ideal for integration into compact devices. Sensirion’s sensors are known for their precision, reliability, and ease of use, making them a preferred choice for many industries. The company’s products are widely used in consumer electronics, HVAC systems, and medical devices.