2pcs DHT11 Temperature Humidity Sensor Module
4.3Editor score
Cost-effective two pack
Compatible with Arduino
Simple integration protocol
In this guide
Choosing the right Arduino humidity sensor is crucial for reliable environmental monitoring projects. Whether you need basic data logging or precise climate control, selecting a module with accurate readings and stable performance ensures your system functions correctly over time.
We evaluated ten popular sensor modules based on accuracy, voltage range, interface type, and user feedback. This list covers budget-friendly options and high-precision alternatives suitable for various microcontroller setups and environmental conditions.
Each pick highlights key specifications and ideal use cases to help you make an informed decision. Keep in mind that prices and availability can change frequently, so verify current listings before purchasing your next project component.
Top 3 Picks for Best Arduino Humidity Sensor
HiLetgo 5pcs DHT11 Temperature Humidity Sensor Module
4.5Editor score
Single-wire digital output
Wide voltage range support
Includes bypass capacitor
Teyleten Robot SHT31-D SHT31 Temperature Humidity Sensor Module
4.7Editor score
High precision I2C interface
Wide temperature range
Superior accuracy ratings
Top 10 Best Arduino Humidity Sensor in 2026 Compared
The following table provides a side-by-side comparison of all ten selected humidity sensor modules highlighting their core specifications and compatibility features for quick reference.
ProductsSpecificationsEditor scorePrice
Editor's Choice
HiLetgo 5pcs DHT11
Digital output signal
20-95% RH range
3.3V to 5V
Single wire interface
4.5Editor score
Editor's Choice
2pcs DHT11 Sensor Module
Digital signal output
20-95% humidity range
3.3V to 5V
Arduino Raspberry Pi
4.3Editor score
Best Premium
Teyleten Robot SHT31
I2C interface output
0 to 100% RH
2.4V to 5.5V
High accuracy sensor
4.7Editor score
HiLetgo 2pcs DHT22
AM2302 main chip
0 to 100% RH
0.5C accuracy
Single bus digital
4.4Editor score
Teyleten Robot DHT11 5pcs
20 to 95% RH
3.3V to 5V
2 degrees accuracy
Lightweight design
4.4Editor score
DHT22 Sensor Module 2pcs
Compact size design
0 to 100% RH
0.5C accuracy
Mounting screw holes
4.6Editor score
Teyleten Robot DHT22 3pcs
3.3 to 5.5V
0 to 100% RH
Single bus output
Temperature range
3.9Editor score
10-Pack DHT11 Module
Large pack quantity
Simple single wire
Bypass capacitor
Wide voltage range
4.6Editor score
4Pcs DHT22 Module
Top electronics components
0 to 100% RH
0.5C accuracy
Anti-interference capable
4.0Editor score
2pcs AHT30 High Precision
I2C communication
2.0V to 5V
0.3C accuracy
Fast transmission
5.0Editor score
1. HiLetgo 5pcs DHT11 – Best Overall Arduino Humidity Sensor
HiLetgo 5pcs DHT11 Temperature Humidity Sensor Module
3.3V to 5.5V
20 to 95% RH
0 to 50 C
Digital signal output
This HiLetgo module stands out as a reliable entry point for Arduino projects requiring environmental monitoring. With a solid 4.5 rating from users, it offers consistent digital output and robust construction that withstands typical hobbyist usage conditions.
Pros
- Includes bypass capacitor
- Simple communication protocol
- Fully interchangeable design
- Stable long-term performance
- Easy single-wire wiring
Cons
- Limited humidity range start
- Resolution only 1% RH
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The sensor utilizes the DHT11 component which provides calibrated temperature and humidity data through a single-wire interface. Integrated onboard components like pull-up resistors simplify circuit design reducing the need for external wiring complexity in your prototype builds.
While the measurement range starts at 20 percent relative humidity and resolution is limited to one percent the trade-off is acceptable for general indoor applications. The long-term stability rating ensures readings remain consistent over extended deployment periods without frequent recalibration needs.
Buyers seeking a cost-effective and easy-to-integrate sensor for classroom projects or basic weather stations should consider this module. It balances affordability with sufficient precision for most non-critical monitoring tasks involving standard microcontroller platforms.
Simplified Integration Benefits
Onboard components reduce external circuitry requirements making assembly faster for beginners and advanced users alike.
Reliability Over Time
Long-term stability ensures your data logging projects maintain accuracy without requiring frequent sensor replacements.
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2. 2pcs DHT11 – Best Budget Arduino Humidity Sensor
2pcs DHT11 Temperature Humidity Sensor Module
3.3V to 5V
20 to 95% RH
0 to 50 C
Digital output form
This two-pack option delivers excellent value for those needing multiple sensors without breaking the bank. It maintains the core DHT11 specifications that ensure compatibility with a wide range of development boards and programming environments.
Pros
- Very affordable price point
- Works with Arduino and Pi
- Reliable long-term stability
- High-performance microcontroller
- Simple wiring scheme
Cons
- Lower rating than competitors
- Two pack may be small
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The sensor combines a resistive element with an NTC temperature device managed by an 8-bit microcontroller for stable signal output. This configuration supports reliable long-term performance which is essential for continuous monitoring applications in homes or labs.
While the rating is slightly lower than other options on this list the functionality remains consistent for basic tasks. The single-wire protocol reduces programming effort significantly allowing you to focus on logic rather than complex communication handling.
Ideal for users building multiple stations or needing backup units this pack offers practical versatility. It is a strong choice for budget-conscious makers who prioritize ease of use over ultra-high precision measurements.
Cross Platform Compatibility
Designed to work seamlessly with both Arduino and Raspberry Pi boards for flexible project options.
Efficient Data Acquisition
High-performance microcontroller ensures quick response times and consistent data logging performance.
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3. Teyleten Robot SHT31 – Best Premium Arduino Humidity Sensor
Teyleten Robot SHT31-D SHT31 Temperature Humidity Sensor Module
2.4V to 5.5V
0 to 100% RH
-40 to 125 C
I2C interface output
This SHT31 module offers professional-grade accuracy suitable for projects demanding precise environmental control. With a 4.7 rating it outperforms many entry-level sensors in terms of measurement fidelity and stability across extreme temperature conditions.
Pros
- Superior accuracy ratings
- Wide temperature operating range
- I2C communication standard
- Full humidity coverage
- Wide voltage tolerance
Cons
- Higher price point
- Requires I2C wiring
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The sensor supports a full 0 to 100 percent relative humidity range and operates from -40 to 125 degrees Celsius. This broad operational envelope makes it ideal for industrial or outdoor applications where standard sensors might fail or drift significantly.
While the I2C interface requires slightly more wiring than single-wire options it enables faster data throughput and multi-device connectivity. The voltage flexibility ensures compatibility with various logic levels without needing additional voltage regulators in your circuit.
Enthusiasts building weather stations or climate control systems should invest in this premium option. The higher cost is justified by the superior accuracy and durability which reduce long-term maintenance and recalibration efforts.
Advanced Temperature Handling
Operates effectively across extreme temperatures from -40 to 125 degrees Celsius for diverse environments.
Efficient Communication
I2C interface allows multiple devices on same bus simplifying complex multi-sensor array designs.
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4. HiLetgo 2pcs DHT22 – Enhanced Accuracy Arduino Humidity Sensor
HiLetgo 2pcs DHT22/AM2302 Digital Temperature and Humidity Sensor Module
AM2302 main chip
0 to 100% RH
-40 to 80 C
0.5C accuracy
This module upgrades to the AM2302 sensor which offers better accuracy than the standard DHT11 model. With a 4.4 rating it provides reliable readings for projects needing tighter tolerances in temperature and humidity measurements.
Pros
- Improved accuracy over DHT11
- Full humidity range coverage
- Mounting screw holes
- Bidirectional serial data
- Wide temperature range
Cons
- Slightly more expensive
- Requires longer response time
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The sensor covers the full 0 to 100 percent humidity range and handles temperatures from -40 to 80 degrees. Its bidirectional serial data output ensures robust communication with microcontrollers reducing error rates during data transmission.
Included mounting screw holes simplify physical installation making it easier to secure the sensor in fixed positions. The improved accuracy of plus or minus 0.5 degrees Celsius is a significant upgrade for precise climate monitoring tasks.
Builders looking to replace older DHT11 units will find this a direct drop-in upgrade. It is well-suited for weather stations or automated greenhouses where measurement consistency directly impacts system performance.
Physical Mounting Features
Convenient fixing screw holes allow secure installation without external brackets or adhesives.
Precision Temperature Data
Improved accuracy of 0.5 degrees Celsius supports sensitive environmental control applications.
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5. Teyleten Robot DHT11 5pcs – Versatile Budget Arduino Humidity Sensor
Teyleten Robot DHT11 Digital Temperature and Humidity Sensor Module for Arduino Raspberry 5pcs
3.3V to 5V
20 to 95% RH
0 to 50 C
8g weight each
This five-piece pack offers practical value for projects requiring multiple sensor nodes across different locations. The consistent 4.4 rating reflects user satisfaction with its basic performance and ease of integration into common development environments.
Pros
- Five sensor package value
- Lightweight compact size
- Works with Arduino Pi
- Standard single bus
- Easy voltage adaptation
Cons
- Standard DHT11 limitations
- Resolution limited to 1%
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Each unit weighs only 8 grams making them ideal for portable or battery-powered applications where weight matters. The standard voltage range of 3.3 to 5 volts ensures direct compatibility with most 3.3V or 5V microcontroller logic levels.
While performance matches standard DHT11 specs the multiple quantity allows for distributed monitoring without buying extra modules separately. This reduces overall shipping costs and ensures you have backups ready for long-term deployments.
Educational projects or distributed IoT setups benefit from having several sensors on hand. It remains a solid choice for users prioritizing quantity and ease of setup over high-end precision or advanced features.
Multi-Node Projects
Five sensors allow tracking conditions in multiple rooms or zones simultaneously.
Lightweight Design
Compact 8 gram weight suits mobile or drone-based environmental sensing tasks.
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6. DHT22 Sensor Module 2pcs – Compact Design Arduino Humidity Sensor
DHT22 Digital Temperature and Humidity Sensor AM2302 Sensors Module with Cable for Electronic Practice DIY Replace SHT11 SHT15 (Pack of 2pcs)
28mm length size
0 to 100% RH
-40 to 80 C
Includes connecting cable
This module combines reliable AM2302 performance with a compact design that fits into tight spaces. Users report a 4.6 rating indicating strong trust in its stability and consistent data output for critical monitoring applications.
Pros
- High user satisfaction
- Compact dimensions
- Includes connecting wire
- Quick response times
- Secure mounting holes
Cons
- Pack size is small
- Wiring length fixed
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The sensor measures 28mm in length with integrated screw holes for secure mounting in enclosures. It includes a 15mm connecting wire that simplifies initial setup without requiring additional soldering or jumper wire procurement.
Response times are quick ensuring that changes in environmental conditions are detected and reported with minimal delay. This responsiveness is valuable for automation systems that rely on real-time feedback to trigger actions.
Those needing robust sensors for home appliances or humidity regulators will find this module well-suited. Its combination of precision and physical convenience makes it a preferred choice for many DIY electronics practitioners.
Included Cable Convenience
Pre-attached connecting wires save time during initial prototype assembly and testing.
Stable Performance
Stable performance and quick response times ensure reliable automation and control logic.
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7. Teyleten Robot DHT22 3pcs – Multi-Pack Precision Arduino Humidity Sensor
Teyleten Robot DHT22 / AM2302 Digital Temperature Humidity Sensor Module for Arduino Replace SHT11 SHT15 (3pcs)
3.3V to 5.5V
0 to 100% RH
-40 to 80 C
3 pack quantity
This three-pack offers a balance between quantity and enhanced sensor capability compared to basic DHT11 units. While the rating is lower the specifications remain competitive for standard monitoring tasks requiring wider range coverage than entry-level models.
Pros
- Full humidity coverage
- Wide voltage tolerance
- Single bus output
- Multi-sensor ready
- Replacement option available
Cons
- Lower average rating
- May need calibration
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The AM2302 sensor inside supports full 0 to 100 percent humidity range and temperatures from -40 to 80 degrees. Voltage tolerance of 3.3 to 5.5 volts ensures compatibility with varying power supplies without needing regulation.
Serial data transmission is bidirectional allowing for robust communication protocols that reduce errors during read operations. The single bus digital output simplifies wiring while maintaining the benefits of digital signal processing over analog alternatives.
Projects needing multiple sensors for multi-room monitoring or redundancy should consider this set. It provides a cost-effective way to upgrade from older SHT11 modules to more modern digital sensor technology.
Voltage Adaptability
Wide 3.3 to 5.5V range allows direct connection to various microcontroller power rails.
Upgrade Capability
Direct replacement for older SHT11 sensors improves accuracy without changing code logic.
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8. 10-Pack DHT11 – Bulk Value Arduino Humidity Sensor
10-Pack DHT11 Humidity Sensor Module, 3.3V-5.5V
20 to 90% RH
3.3V to 5.5V
0 to 50 C
10 sensors included
This ten-pack provides exceptional value for classroom workshops or large-scale deployment projects. A high 4.6 rating confirms that users appreciate the reliability and ease of use offered by these modules in bulk purchases.
Pros
- Large quantity value
- High user rating
- Built-in bypass capacitor
- Long-term stability
- Comprehensive documentation
Cons
- Basic DHT11 limits
- Fixed cable length
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Each sensor includes a bypass capacitor and pull-up resistor which simplifies circuit integration by reducing external component counts. The wide voltage range of 3.3 to 5.5 volts ensures flexibility across different power supply configurations.
Long-term stability is engineered into the design ensuring that readings remain accurate over years of operation. Comprehensive documentation and after-sales support help resolve any programming or installation hurdles quickly.
Educators and system integrators needing many sensors for distributed networks will find this pack highly efficient. It eliminates the need for individual sourcing and ensures consistency across all deployed units in the project.
Educational Suitability
Bulk quantity supports classroom experiments where multiple students build individual projects.
Support Resources
Comprehensive documentation and support team help streamline setup and troubleshooting.
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9. 4Pcs DHT22 – High Quality Arduino Humidity Sensor
4Pcs DHT22/AM2302 Digital Temperature Humidity Sensor Module
Top electronics components
0 to 100% RH
-40 to 80 C
4 sensors included
This module set emphasizes quality electronic components to ensure reliable and long-lasting performance. With a 4.0 rating it offers a balance of accuracy and durability that meets the needs of many practical automation projects.
Pros
- Quality electronic parts
- 4 pack quantity
- Anti-interference capable
- Lightweight design
- Versatile applications
Cons
- Average rating score
- Price per unit higher
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Each sensor features anti-interference capabilities which help maintain signal integrity in electrically noisy environments. The compact lightweight design at approximately 6.4 grams makes it suitable for portable or drone-mounted sensing tasks.
Precision is maintained at plus or minus 0.5 degrees Celsius and 2 percent RH for trustworthy data collection. The bidirectional serial data ensures efficient communication with microcontrollers without complex configuration steps.
Users requiring multiple reliable units for home appliances or humidity regulators should evaluate this option. It provides solid performance for a wide array of applications ranging from medical treatment to dehumidifier control.
Anti-Interference Capability
Strong resistance to electrical noise ensures stable readings in industrial or busy settings.
Portable Design
Lightweight 6.4g form factor suits mobile and battery-powered sensing applications.
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10. 2pcs AHT30 – Advanced Communication Arduino Humidity Sensor
2pcs AHT30 High Precision Digital Temperature and Humidity Sensor Measurement Module I2C IIC Communication AHT20 AHT21 AHT10 Upgraded Version for Arduino Humidity Temperature Sensor
2.0V to 5V
0 to 100% RH
-40 to 85 C
0.3C accuracy
This AHT30 module stands out with a perfect 5.0 rating reflecting exceptional user satisfaction with its precision and reliability. It serves as an upgraded version over older models offering improved communication protocols and wider voltage flexibility.
Pros
- Perfect 5.0 rating
- High precision accuracy
- I2C communication
- Low power usage
- Fast transmission speed
Cons
- Two pack limited
- Requires I2C setup
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The sensor supports simultaneous online access to multiple I2C devices allowing for complex array configurations. High precision measurement with 0.3 degree Celsius accuracy ensures that even minor environmental changes are detected accurately.
Power consumption is low making it suitable for battery-operated projects where energy efficiency is critical. Fast transmission speed ensures that data updates happen quickly supporting real-time monitoring applications that demand rapid response.
Enthusiasts seeking top-tier performance for home or industrial use will find this module unmatched. It is ideal for users who value accuracy and modern I2C standards over older single-wire technologies.
Modern Communication
I2C master output supports multiple devices on one bus reducing pin count requirements.
Energy Efficiency
Low power consumption extends battery life for portable wireless monitoring solutions.
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Buying Guide – How to Choose the Best Arduino Humidity Sensor
Selecting the right sensor involves understanding your project requirements regarding accuracy voltage and communication interface. This guide helps you prioritize features that align with your specific application goals.
Accuracy and Precision
Accuracy determines how close the sensor reading is to the actual environmental condition. For general indoor monitoring plus or minus 5 percent relative humidity and 2 degrees Celsius may suffice. However for climate control or medical applications look for models offering 2 percent humidity and 0.3 degree Celsius accuracy.
Prioritize sensors with higher precision ratings if your project depends on strict temperature or humidity thresholds.
Voltage Compatibility
Check the supply voltage requirements to match your microcontroller power rails. Most modern boards operate at 3.3 volts while others use 5 volts. Selecting a module that accepts both ranges prevents the need for additional voltage regulators or logic level shifters in your circuit.
Always verify that your power source can supply sufficient current for the sensor during active sampling periods.
Communication Interface
Single-wire interfaces like DHT series simplify wiring but may limit speed and multi-device capability. I2C interfaces support multiple sensors on the same bus making them ideal for complex arrays. Consider your wiring complexity tolerance and pin availability when choosing between protocols.
I2C is generally preferred for scalable systems while single-wire suits simple prototypes.
Temperature Range
Standard sensors often operate between 0 and 50 degrees Celsius which fits indoor environments well. For outdoor or industrial projects look for models supporting -40 to 85 degrees Celsius or wider. Extreme cold or heat can affect readings or damage sensors outside their rated limits.
Ensure the sensor range covers all expected ambient conditions in your deployment location.
Humidity Measurement Range
Some sensors start measuring at 20 percent humidity while others cover the full 0 to 100 percent range. If you need to monitor very dry environments or steam-heavy areas ensure the sensor supports the full spectrum. Limited range can lead to inaccurate or missing data in extreme conditions.
Full range coverage is essential for comprehensive environmental monitoring projects.
Response Time and Stability
Response time affects how quickly the sensor reflects environmental changes. Faster response is vital for automation systems that rely on real-time triggers. Long-term stability ensures that readings do not drift over months of continuous operation without recalibration.
Look for specifications mentioning stability ratings or long-term performance guarantees.
Package Quantity
Buying in bulk often reduces cost per unit and ensures consistent performance across multiple nodes. If you are building a network of sensors consider multi-pack options. It also provides spares for replacements without delay if a sensor fails.
Evaluate if a single unit or a pack better suits your project scale and budget.
Physical Design and Mounting
Compact sensors are easier to install in tight enclosures or portable devices. Mounting holes simplify securing the sensor without adhesives. Weight matters for drone or mobile applications where every gram counts toward payload limits.
Choose a design that fits your physical housing constraints and mounting method preferences.
How to Use and Care for Your Arduino Humidity Sensor
Connect the power and ground pins correctly according to the module documentation. Most sensors require 3.3 to 5 volts on VCC and ground on GND. Ensure stable power supply to avoid voltage dips that could affect readings.
Install the code library compatible with your chosen sensor type such as the Adafruit DHT library. Verify connections by reading initial values before integrating into larger logic. Keep cables secure to prevent loose contacts during testing.
Avoid exposing the sensor to direct water or high humidity above rated limits to prevent damage. Calibrate periodically if high precision is required and keep the sensor away from heat sources that might skew measurements.
Frequently Asked Questions
Which Arduino humidity sensor is easiest to wire?
Single-wire sensors like the DHT11 and DHT22 are the simplest to wire requiring only data VCC and ground connections. They integrate well without needing pull-up resistors on most boards. This makes them ideal for beginners.
What is the difference between DHT11 and DHT22?
The DHT22 offers better accuracy and a wider temperature range than the DHT11. It covers full humidity from 0 to 100 percent while DHT11 starts at 20 percent. DHT22 also has a slower response time but higher precision.
Can I use multiple humidity sensors on one Arduino?
Yes but you must assign each sensor a unique data pin if using single-wire models. For I2C sensors multiple units can share the same bus with different addresses. Ensure your code reads each one individually for correct data collection.
Why are my humidity readings inconsistent?
Inconsistent readings may stem from loose wiring unstable power or poor placement near heat sources. Verify connections and ensure the sensor is not exposed to direct sunlight. Calibrate and test with known conditions to improve consistency.
How do I install DHT sensor libraries?
Use the Arduino Library Manager to search for and install the DHT library. Select the correct version matching your hardware model. Follow example sketches to test connectivity and adjust code parameters for your specific project setup.
Is I2C better than single-wire for humidity sensors?
I2C allows connecting multiple sensors easily on two wires while single-wire uses one data line per sensor. I2C offers faster data rates but requires more complex wiring. Single-wire is simpler for basic standalone setups.
Do I need a capacitor for DHT sensors?
Many modules include onboard bypass capacitors to stabilize power. If not your may need to add one to prevent noise spikes from causing reading errors. Check your module design to determine external component needs.
How long do Arduino humidity sensors last?
With proper handling most sensors last several years in indoor environments. Extreme conditions or exposure to water can shorten their lifespan. Monitor stability over time and replace units showing significant drift or failure.
Final Thoughts on Choosing the Best Arduino Humidity Sensor
The ten models reviewed offer a range of options from budget DHT11 units to high-precision SHT31 modules. Whether you prioritize cost accuracy or communication speed there is a suitable choice for your specific project requirements.
Focus on accuracy voltage compatibility and range to ensure your sensor meets the demands of your application. Consider how many sensors you need and whether multi-pack options provide better value for your deployment.
Always verify current pricing and availability before finalizing your purchase to secure the best deal. With the right sensor your environmental monitoring project will deliver consistent and reliable data.