Humidity sensors

Optimize efficiency and extend system lifetime with humidity sensors

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The need for improved reliability and safer, more comfortable environments has increased the adoption of relative humidity (RH) sensors to measure water vapor. Our humidity sensor portfolio offers enhanced reliability, high accuracy and low power to enable more efficient, long-lasting systems. 

Featured humidity sensors

HDC3022 NEW

0.5% RH digital humidity sensor with permanent IP67 filter

Approx. price (USD) 1ku | 1.85
HDC3021 NEW

0.5% RH digital humidity sensor with removable tape cover

Approx. price (USD) 1ku | 1.85
HDC3021-Q1 NEW

Automotive 0.5% RH digital humidity sensor with removable tape cover

Approx. price (USD) 1ku | 2.054
HDC3020 NEW

0.5% RH digital humidity sensor, 0.19% long-term drift, 400 nA, 4-sec response time, NIST traceable

Approx. price (USD) 1ku | 1.65
HDC3020-Q1 NEW

Automotive 0.5% RH digital humidity sensor, 0.19% long-term drift, 400 nA, 4-sec response time

Approx. price (USD) 1ku | 1.832

Why choose our humidity sensor ICs?

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Extend system reliability with enhanced sensing

Achieve greater reliability with low drift in long-life industrial and automotive applications. Less than 0.21% RH drift per year and VOC contamination correction.

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Increase system efficiency with high accuracy

Our devices are rigorously tested and trimmed for RH and temperature accuracy. Our test setup is traceable to NIST standards and verified by ISO/IEC 17025 policies.

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Increase lifetimes for battery-operated systems

Reduce the frequency of battery changes and charging with ultra-low power (nanoampere) consumption across a wide supply range that enables low-power operation while actively running and in sleep mode.

Technical resources

White paper
White paper
85°C/85% RH Accelerated Life Test Impact on Humidity Sensors (Rev. A)
Learn about the 85°C/85% RH accelerated life test, its impact on RH sensors, and ultimately how to address conflicts when the same design needs both 85°C/85% tests and RH sensors.
document-pdfAcrobat PDF
Application note
Application note
How the HDC3020 Humidity Sensor Family Achieves The Industry's Lowest Drift (Rev. A)
Get an understanding of our three-pronged approach to maintain better RH accuracy over the lifetime of your sensor.
document-pdfAcrobat PDF
Technical article
Technical article
Why long-term consistent performance matters for relative humidity sensors
Learn about the accuracy and long-term drift of relative humidity sensors and how these parameters affect end-equipment performance and lifetimes.

Reference designs related to Humidity sensors

Use our reference design selection tool to find designs that best match your application and parameters.