HiLetgo 5pcs DHT11 Temperature Humidity Sensor Module
4.5Editor score
Includes five sensors with wires
Simple single-wire digital output
Compatible with 3.3V or 5V systems
In this guide
Choosing the right sensor for your microcontroller project can be challenging. You need reliable data to drive your automation or monitoring systems effectively.
We evaluated ten popular models based on accuracy, voltage range, and ease of integration. Our list covers everything from basic DHT models to advanced I2C options.
Each pick highlights key specs and real-world performance. Note that availability and pricing change frequently, so verify details before purchasing your next component.
Top 3 Picks for Best Arduino Humidity Sensor
Teyleten Robot SHT31-D SHT31 Temperature Humidity Sensor Module
4.7Editor score
Wide voltage range 2.4V to 5.5V
I2C interface for easy wiring
High accuracy of plus or minus 2 percent RH
2pcs AHT30 High Precision Digital Temperature and Humidity Sensor Measurement Module
5.0Editor score
High precision with 0.01 C resolution
Low power consumption design
I2C communication for multiple devices
Top 10 Best Arduino Humidity Sensor in 2026 Compared
This side-by-side comparison helps you evaluate the technical specifications of each model. Focus on voltage, interface type, and measurement ranges to find the right fit.
ProductsSpecificationsEditor scorePrice
Best Budget
HiLetgo 5pcs DHT11 Module
Range: 20 to 95 percent RH
Temp: 0 to 50 degrees Celsius
Interface: Single-wire digital
Voltage: 3.3V to 5V
4.5Editor score
Editor's Choice
2pcs DHT11 Temperature Humidity Sensor
Range: 20 to 95 percent RH
Temp: 0 to 50 degrees Celsius
Interface: Single-wire digital
Voltage: 3.3V to 5V
Editor's Choice
Teyleten Robot SHT31-D Module
Range: 0 to 100 percent RH
Temp: -40 to 125 degrees Celsius
Interface: I2C
Voltage: 2.4V to 5.5V
4.7Editor score
HiLetgo 2pcs DHT22 Module
Range: 0 to 100 percent RH
Temp: -40 to 80 degrees Celsius
Interface: Single-bus digital
Accuracy: 2 percent RH
4.4Editor score
Teyleten Robot DHT11 Module
Range: 20 to 95 percent RH
Temp: 0 to 50 degrees Celsius
Interface: Single-wire digital
Voltage: 3.3V to 5V
4.4Editor score
DHT22 AM2302 Module Pack
Range: 0 to 100 percent RH
Temp: -40 to 80 degrees Celsius
Interface: Single-bus digital
Includes 215mm connecting wire
4.6Editor score
Teyleten Robot DHT22 Module
Range: 0 to 100 percent RH
Temp: -40 to 80 degrees Celsius
Interface: Single bus digital
Voltage: 3.3V to 5.5V
3.9Editor score
10-Pack DHT11 Humidity Sensor
Range: 20 to 90 percent RH
Temp: 0 to 50 degrees Celsius
Interface: Single-wire digital
Includes five 3-pin cables
4.6Editor score
4Pcs DHT22/AM2302 Module
Range: 0 to 100 percent RH
Temp: -40 to 80 degrees Celsius
Interface: Single-bus digital
Includes 4P test line
4.0Editor score
2pcs AHT30 High Precision Module
Range: 0 to 100 percent RH
Temp: -40 to 85 degrees Celsius
Interface: I2C
Accuracy: 0.3 degrees Celsius
5.0Editor score
1. Teyleten Robot SHT31-D – Best Overall Arduino Humidity Sensor
Teyleten Robot SHT31-D SHT31 Temperature Humidity Sensor Module
Accuracy 2 percent RH
Range 0 to 100 percent RH
Voltage 2.4V to 5.5V
Interface I2C IIC
This SHT31-D module stands out for its exceptional accuracy and robust design. With a rating of 4.7 stars, it is a top choice for serious projects.
Pros
- High accuracy for detailed monitoring
- Wide voltage range compatibility
- I2C protocol allows multiple sensors
- Full 0 to 100 percent range
Cons
- I2C wiring is slightly complex
- Higher cost than basic models
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It offers a wide measurement range for both temperature and humidity. The I2C interface makes it easy to connect multiple sensors to a single microcontroller.
The main trade-off is the slightly higher cost compared to DHT models. This is acceptable given the superior precision and reliability it provides.
Buy this if you need accurate data for scientific or industrial applications. It is the best overall choice for quality-conscious hobbyists.
Superior Accuracy for Data Logging
The precision of this module ensures your recorded data is trustworthy and useful for analysis.
Flexible Voltage Operation
It works with both 3.3V and 5V boards without needing level shifters.
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2. HiLetgo DHT11 – Best Budget Arduino Humidity Sensor
HiLetgo 5pcs DHT11 Temperature Humidity Sensor Module
Accuracy 5 percent RH
Range 20 to 95 percent RH
Voltage 3.3V to 5V
Interface Single-wire digital
This DHT11 module is perfect for beginners who need affordable sensors. It comes with five units and wires, making it a great starter pack.
Pros
- Affordable price for five units
- Includes pre-attached wires
- Simple single-wire wiring
- Works with most Arduino boards
Cons
- Limited humidity range below 20 percent
- Lower accuracy compared to SHT
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The single-wire protocol simplifies your circuit design. It is easy to connect to digital pins without complex configuration.
While it lacks the precision of high-end sensors, it is sufficient for general hobby projects. The included wires save time on assembly.
Choose this for learning or large-scale deployments where cost matters. It is the best budget option for entry-level builders.
Complete Kit for Starters
You get everything you need to start testing immediately without extra components.
Easy Single-Wire Interface
The wiring scheme reduces the number of connections needed on your board.
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3. AHT30 High Precision – Best Premium Arduino Humidity Sensor
2pcs AHT30 High Precision Digital Temperature and Humidity Sensor Measurement Module
Accuracy 0.3 degrees C
Range 0 to 100 percent RH
Voltage 2.0V to 5V
Interface I2C IIC
The AHT30 module earns a perfect 5.0 rating for its advanced features. It is an upgraded version that delivers premium performance for demanding tasks.
Pros
- Highest rating of 5.0
- Very low power consumption
- Fast transmission speed
- Wide voltage adaptability
Cons
- Requires I2C pull-up resistors
- Newer model with less tutorials
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Its low power consumption makes it ideal for battery-operated projects. The fast transmission speed ensures your data updates quickly and reliably.
You may need to manage pull-up resistors for I2C, which adds slight complexity. However, the benefits outweigh this minor setup step.
This is the best premium choice for high-end applications. Use it when performance and stability are your top priorities.
Efficient Power Management
Low power design extends battery life for portable monitoring devices.
Upgraded Technology
It builds on previous AHT models with improved speed and accuracy.
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4. HiLetgo DHT22 – Reliable Mid-Range Arduino Humidity Sensor
HiLetgo 2pcs DHT22/AM2302 Digital Temperature and Humidity Sensor Module
Accuracy 0.5 degrees C
Range 0 to 100 percent RH
Voltage 3.3V to 5.5V
Interface Single-bus digital
This DHT22 module improves on the DHT11 with better accuracy and range. It is rated 4.4 stars for solid mid-tier performance.
Pros
- Wider temp range than DHT11
- Includes fixing screw holes
- Better accuracy than DHT11
- Compatible with AM2302
Cons
- Slightly more expensive than DHT11
- Still uses single-wire bus
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The measurement range covers more extreme temperatures than the basic models. Screw holes make it easier to mount securely in your project.
You pay a bit more than for DHT11 units, but you get more reliability. It strikes a good balance between cost and quality.
Pick this for standard weather stations or greenhouses. It is a reliable choice when DHT11 is not precise enough.
Enhanced Temperature Range
It handles colder and hotter environments better than the DHT11.
Secure Mounting Options
Built-in screw holes simplify the physical installation process.
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5. Teyleten DHT11 – Cost-Effective Arduino Humidity Sensor
Teyleten Robot DHT11 Digital Temperature and Humidity Sensor Module
Accuracy 5 percent RH
Range 20 to 95 percent RH
Voltage 3.3V to 5V
Weight 8g per sensor
This Teyleten DHT11 pack offers a great value for projects needing multiple sensors. It is rated 4.4 stars for consistent basic performance.
Pros
- Lightweight design at 8g
- Five units included
- Standard DHT11 specs
- Easy digital integration
Cons
- Standard DHT11 limitations
- Basic accuracy for critical apps
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The sensors are lightweight, which is useful for small or mobile projects. You get five units to cover different areas without extra cost.
It shares the limitations of other DHT11 models, such as humidity range. This is acceptable for general purpose monitoring tasks.
Buy this if you need bulk sensors for classroom or group work. It is a cost-effective solution for multiple units.
Lightweight for Portability
The low weight helps in mobile or drone-based monitoring projects.
Bulk Pack Value
Getting five units lowers the per-sensor cost significantly.
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6. JTAREA DHT22 – Ready-to-Use Arduino Humidity Sensor
DHT22 AM2302 Sensors Module with Cable
Accuracy 0.5 degrees C
Range 0 to 100 percent RH
Voltage 3.3V to 5V
Includes 215mm wire
This DHT22 module is praised for its ready-to-use design with long wires. It holds a rating of 4.6 stars for user convenience.
Pros
- Includes 215mm connecting wire
- Compact size design
- Quick response times
- High rating of 4.6
Cons
- Wire might be fixed length
- Requires careful mounting
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The included wire simplifies setup, especially for beginners. It is ideal for home automation where sensors are placed away from the board.
Compact size and screw holes help fit it into tight spaces. The fast response is great for real-time control systems.
Select this for easy home automation setups. It is a strong choice for those who want ready-to-use components.
Convenient Pre-Attached Cables
The included wire saves you from soldering extra connections.
Responsive Sensor Data
Quick response times keep your data fresh for control loops.
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7. Teyleten DHT22 – Versatile Arduino Humidity Sensor
Teyleten Robot DHT22 / AM2302 Digital Temperature Humidity Sensor Module
Accuracy 2 percent RH
Range 0 to 100 percent RH
Voltage 3.3V to 5.5V
Includes 3 units
This DHT22 pack provides three units with full humidity coverage. It is rated 3.9 stars, indicating decent but not exceptional performance.
Pros
- Wide voltage range
- Three units per pack
- Full humidity coverage
- Durable single-bus design
Cons
- Lower rating than competitors
- Limited documentation online
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The wide voltage range ensures compatibility with various power supplies. You get three sensors for testing or multi-point measurement.
Some users may find the rating lower than expected. Ensure you check compatibility with your specific board before purchasing.
Buy this for projects needing multiple sensors at a budget. It is a versatile choice when you need several modules.
Multi-Sensor Capability
Three units allow you to monitor multiple zones easily.
Voltage Flexibility
It works with a broad range of supply voltages.
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8. 10-Pack DHT11 – Bulk Arduino Humidity Sensor
10-Pack DHT11 Humidity Sensor Module
Accuracy 5 percent RH
Range 20 to 90 percent RH
Voltage 3.3V to 5.5V
Includes five cables
This bulk pack contains ten sensors for large-scale classroom or home needs. It is rated 4.6 stars for reliable performance and value.
Pros
- Ten units for large projects
- High rating of 4.6
- Includes 3-pin cables
- Stable long-term performance
Cons
- Large quantity may be excessive
- Basic DHT11 limitations
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The included 3-pin cables make wiring straightforward. It is perfect for workshops where students or team members need their own sensors.
You might not need ten units for a single project. However, it is an excellent investment for future expansion.
Choose this for large classes or community projects. It is the best bulk solution for many users.
Ideal for Workshops
Great for classrooms where each student needs a sensor.
Long-Term Stability
The sensor is engineered to maintain accuracy over time.
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9. 4Pcs DHT22 – Compact Arduino Humidity Sensor
4Pcs DHT22/AM2302 Digital Temperature Humidity Sensor Module
Accuracy 0.5 degrees C
Range 0 to 100 percent RH
Voltage 3.5V to 5.5V
Compact 38mm size
This module offers a compact design suitable for tight enclosures. It is rated 4.0 stars for functional and reliable performance.
Pros
- Compact 38mm dimensions
- Lightweight at 6.4g
- Anti-interference design
- Four units included
Cons
- Size is not standard DHT
- Slightly heavier than expected
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The anti-interference capabilities ensure stable data in noisy environments. Four units give you flexibility for multiple monitoring points.
Dimensions are slightly different from standard models, so check your design. This is a minor trade-off for the space savings.
Buy this for space-constrained electronics or wearables. It is a solid option for compact project designs.
Space Saving Footprint
The small size helps fit sensors into tight casings.
Stable Signal Output
Strong anti-interference features maintain clean data signals.
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10. AHT30 Precision – Detailed Arduino Humidity Sensor
2pcs AHT30 High Precision Digital Temperature and Humidity Sensor Measurement Module
Accuracy 0.01 degrees C
Range 0 to 100 percent RH
Voltage 2.0V to 5.5V
I2C master output
This AHT30 module delivers detailed precision for critical monitoring needs. With a perfect 5.0 rating, it is a top tier sensor.
Pros
- High resolution of 0.01 degrees
- Master output for multi-devices
- Simple circuit design
- Stable transmission speed
Cons
- I2C setup required
- Only two units included
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The high resolution allows you to see even tiny temperature fluctuations. Master output enables simultaneous access to multiple devices on the bus.
You only get two units, so plan for future needs carefully. However, the technical capabilities justify the limited count.
Choose this for scientific or detailed analysis. It is the best precision choice for expert users.
Detailed Resolution
The high resolution supports precise data logging and analysis.
Master Output Support
Access to multiple devices simplifies complex system architectures.
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Buying Guide – How to Choose the Best Arduino Humidity Sensor
Choosing the right sensor depends on your specific project needs. Consider these six factors to ensure compatibility and performance.
Measurement Accuracy
Accuracy determines how close your readings are to true values. High-end models like SHT31 offer 1 percent accuracy while basic DHT11 offers 5 percent.
Choose higher accuracy if your project requires precise data logging.
Voltage Compatibility
Most Arduino boards run at 5V but newer ones use 3.3V. Check if your sensor supports both or needs a level shifter.
Ensure your sensor works with your board voltage directly to avoid extra components.
Communication Interface
Single-wire interfaces like DHT are simple but slower. I2C interfaces like AHT30 allow multiple devices and are faster but need pull-up resistors.
Use single-wire for simple projects and I2C for complex multi-sensor systems.
Humidity and Temp Range
Some sensors only measure 20 to 95 percent humidity. Others cover 0 to 100 percent. Temperature ranges also vary from limited to wide.
Select a sensor that covers your full expected environmental range.
Power Consumption
Battery powered projects need low power sensors. Some modules consume less power and sleep modes to save energy over time.
Prioritize low power models if your device is not always plugged in.
Pack Quantity
You may need one sensor or many. Kits often offer better value per unit and include wires for easier assembly.
Buy bulk packs if you plan to deploy multiple sensors across different locations.
How to Use and Care for Your Arduino Humidity Sensor
Start by reading the datasheet for your specific sensor. Connect the VCC, GND, and data pins to your board as recommended.
Install the appropriate library for your sensor model. Most popular sensors have free libraries available through the Arduino IDE.
Keep your sensor away from direct heat or moisture sources. Proper mounting will ensure stable and accurate readings over time.
Frequently Asked Questions
Which Arduino humidity sensor is the most accurate?
The AHT30 and SHT31 series offer the highest accuracy among hobby sensors. They provide detailed resolution and better stability than basic DHT models.
Do I need extra components to connect a DHT sensor?
Most DHT modules come with a pull-up resistor included. You only need to connect power and data to your microcontroller pins.
Can I use these sensors with 3.3V boards?
Many modern sensors support 3.3V directly. Always check the voltage range in the product specs before connecting to 3.3V boards.
Why is my sensor reading zero or incorrect data?
Incorrect wiring or code is usually the cause. Ensure you installed the correct library and connected the pins in the right order.
How do I power multiple humidity sensors?
You can connect them in parallel to the same voltage. For data, use unique digital pins or an I2C multiplexer if available.
Are these sensors waterproof?
No, most sensors are not waterproof. Keep them in a dry enclosure or use a waterproof housing if you are near moisture sources.
Which is better DHT22 or AHT30?
AHT30 is generally better for precision and power efficiency. DHT22 is cheaper and simpler but less accurate in extreme conditions.
What is the typical lifespan of a humidity sensor?
Most sensors last several years with proper care. Long-term stability ratings vary but high-quality ones remain accurate for many years.
Final Thoughts on Choosing the Best Arduino Humidity Sensor
We highlighted the SHT31 for overall performance and the DHT11 for budget needs. Each product brings unique strengths depending on your application.
Prioritize accuracy and interface type when making your decision. A good sensor ensures your data is reliable and your system performs well.
Remember to verify current availability and compatibility before buying. Checking current details will help you avoid setup issues.