HiLetgo 5pcs DHT11 Temperature Humidity Sensor Module
4.5Editor score
Affordable 5-pack
Simple single-wire
Pre-calibrated sensor
In this guide
Choosing the right Arduino humidity sensor is crucial for accurate environmental monitoring in your DIY projects. Whether you are building a weather station or a smart home device, the sensor you pick determines data reliability and project success.
We evaluated ten top-rated modules based on accuracy, voltage compatibility, communication protocol, and user feedback. This list covers both single-wire options and advanced I2C interfaces to suit different skill levels and project requirements.
Each pick highlights key specifications and ideal use cases to simplify your decision. Please note that availability and pricing can change frequently, so verify current details before purchasing to ensure you get the best value for your build.
Top 3 Picks for Best Arduino Humidity Sensor
Teyleten Robot SHT31-D SHT31 Temperature Humidity Sensor Module
4.7Editor score
High accuracy measurements
Wide voltage range
I2C interface output
2pcs AHT30 High Precision Digital Temperature and Humidity Sensor
5.0Editor score
High precision readings
Low power consumption
Fast transmission speed
Top 10 Best Arduino Humidity Sensor in 2026 Compared
The following table provides a side-by-side comparison of all ten selected humidity sensors. Review the key specifications and ratings to quickly identify which module aligns best with your specific Arduino project requirements.
ProductsSpecificationsEditor scorePrice
Best Budget
HiLetgo 5pcs DHT11 Module
Range 20-90% RH
Accuracy ±5% RH
Voltage 3.3V-5V
Interface Single-wire
4.5Editor score
Editor's Choice
2pcs DHT11 Sensor Module
Range 20-95% RH
Accuracy ±5% RH
Voltage 3.3V-5V
Digital Output
Editor's Choice
Teyleten Robot SHT31-D Module
Range 0-100% RH
Accuracy ±2% RH
Voltage 2.4V-5.5V
Interface I2C
4.7Editor score
HiLetgo 2pcs DHT22 Module
Range 0-100% RH
Accuracy ±2% RH
Voltage 3.3V-5V
Single-bus Output
4.4Editor score
Teyleten Robot DHT11 Module
Range 20-95% RH
Accuracy ±5% RH
Voltage 3.3V-5V
Weight 8g each
4.4Editor score
DHT22 AM2302 Sensor Module
Range 0-100% RH
Accuracy ±2% RH
Voltage 3.3V-5V
Mounting Screw Holes
4.6Editor score
Teyleten Robot DHT22 Module
Range 0-100% RH
Accuracy ±2% RH
Voltage 3.3V-5.5V
Serial Data Port
3.9Editor score
10-Pack DHT11 Humidity Sensor
Range 20-90% RH
Accuracy ±5% RH
Voltage 3.3V-5.5V
Onboard Bypass
4.6Editor score
4Pcs DHT22 Module
Range 0-100% RH
Accuracy ±2% RH
Voltage 3V-5.5V
Lightweight Design
4.0Editor score
2pcs AHT30 Precision Module
Range 0-100% RH
Accuracy ±2% RH
Voltage 2.0V-5.5V
I2C Communication
5.0Editor score
1. Teyleten Robot SHT31-D – Best Overall Arduino Humidity Sensor
Teyleten Robot SHT31-D SHT31 Temperature Humidity Sensor Module
Humidity 0-100% RH
Temperature -40-125°C
I2C Interface Output
Voltage 2.4-5.5V
This Teyleten Robot SHT31-D module is a top-tier choice for projects needing precise environmental data. It holds a strong rating and features a wide operational range that exceeds many standard competitors in this category.
Pros
- High accuracy ±2% RH
- Wide temperature range
- I2C communication protocol
- Multiple units in pack
- Reliable performance
Cons
- Slightly higher price
- Requires I2C knowledge
We may earn a commission when you buy through this link, at no additional cost to you.
The sensor delivers humidity accuracy within ±2% RH and temperature accuracy within ±0.3°C. Its I2C interface allows for easy connection to multiple devices without occupying many GPIO pins on your Arduino board.
While it costs slightly more than basic DHT11 options, the improved precision and digital communication make it worth the investment for serious applications. You might find the I2C wiring less familiar than single-wire setups initially.
It is ideal for weather stations or smart home monitors where consistent and reliable readings are critical. If you need accuracy and digital bus efficiency, this module stands out as the best overall pick.
Enhanced Measurement Precision
The SHT31 sensor provides significantly better accuracy than entry-level units, ensuring your data logging is trustworthy over time.
Efficient Digital Interface
Using I2C means you can daisy-chain sensors or save pins, which is great for complex setups with many components.
We may earn a commission when you buy through this link, at no additional cost to you.
2. HiLetgo 5pcs DHT11 – Best Budget Arduino Humidity Sensor
HiLetgo 5pcs DHT11 Temperature Humidity Sensor Module
Humidity 20-90% RH
Temperature 0-50°C
Single-wire Digital
Voltage 3.3-5V
The HiLetgo DHT11 pack is an excellent entry point for hobbyists on a tight budget. With five modules included, you can easily test multiple locations or replace damaged units without additional costs.
Pros
- Very affordable price
- Includes five units
- Easy to wire
- Onboard capacitor included
- Beginner friendly
Cons
- Limited humidity range
- Lower accuracy ±5% RH
We may earn a commission when you buy through this link, at no additional cost to you.
It offers a standard single-wire digital output that simplifies programming and wiring. The onboard bypass capacitor and pull-up resistor reduce the need for extra external components in your circuit design.
The main limitation is its accuracy of ±5% RH and a restricted humidity range starting at 20%. It may not suit high-precision applications but works well for general monitoring tasks.
This is the best budget pick for classroom projects or quick prototypes where cost savings are priority. If you need reliable basic data without breaking the bank, this kit is the smart choice.
Cost-Effective Bulk Kit
Buying a five-pack ensures you have spares for testing, which is a great way to learn without worrying about losing a sensor.
Simplified Circuit Design
With the components built onto the board, you save time on soldering and assembly for your first Arduino humidity sensor project.
We may earn a commission when you buy through this link, at no additional cost to you.
3. 2pcs AHT30 – Best Premium Arduino Humidity Sensor
2pcs AHT30 High Precision Digital Temperature and Humidity Sensor
Humidity 0-100% RH
Temperature -40-85°C
I2C Master Output
Voltage 2.0-5.5V
The AHT30 module stands out with a perfect rating and high-precision capabilities for advanced users. It combines low power usage with fast data transmission, making it ideal for battery-powered projects.
Pros
- Perfect 5.0 rating
- High precision accuracy
- Low power consumption
- Fast transmission speed
- Simple circuit
Cons
- Only two units
- I2C setup needed
We may earn a commission when you buy through this link, at no additional cost to you.
Its I2C interface supports multiple devices on the same bus, providing flexibility in system design. The wide voltage range ensures compatibility with various power sources and microcontroller platforms.
While you get fewer units compared to bulk DHT packs, the quality and reliability justify the premium positioning. The only constraint is the need for some I2C knowledge during initial setup.
This premium option is best for those seeking top-tier performance and energy efficiency. If you need stable and accurate data with minimal power drain, this sensor module is the ultimate choice.
Low Power Efficiency
The low power consumption allows this sensor to run for extended periods on batteries, which is crucial for portable monitoring applications.
Fast and Reliable Data
The high transmission speed ensures your system gets real-time readings without significant delays or latency issues in your project.
We may earn a commission when you buy through this link, at no additional cost to you.
4. HiLetgo 2pcs DHT22 – Great Accuracy Arduino Humidity Sensor
HiLetgo 2pcs DHT22/AM2302 Digital Temperature and Humidity Sensor
Humidity 0-100% RH
Temperature -40-80°C
Single-bus Digital
Accuracy ±2% RH
This DHT22 module offers better performance than the standard DHT11 with a wider temperature and humidity range. It is a solid upgrade for projects that require more reliable monitoring across different conditions.
Pros
- Wide range support
- Improved accuracy
- Includes fixing holes
- Replace SHT11
- Easy installation
Cons
- Slightly larger size
- Two units only
We may earn a commission when you buy through this link, at no additional cost to you.
The accuracy of ±2% RH and temperature precision of ±0.5°C ensure you get dependable data for your applications. The single-bus digital output keeps wiring simple while improving data quality significantly.
Fixing screw holes make it easy to mount securely in your device or enclosure. However, the size is slightly larger than some other compact modules, and you only get two units per pack.
It is a great option for users needing higher accuracy without moving to complex protocols. If you want a reliable upgrade from DHT11 with better specs, this module fits the bill perfectly.
Superior Data Reliability
The upgraded chip provides more consistent readings, reducing errors that might occur with cheaper or older sensor models in the past.
Secure Mounting Design
The built-in screw holes allow you to fasten the sensor firmly, preventing movement or vibration from affecting your measurements.
We may earn a commission when you buy through this link, at no additional cost to you.
5. Teyleten Robot DHT11 – Simple Setup Arduino Humidity Sensor
Teyleten Robot DHT11 Digital Temperature and Humidity Sensor Module
Humidity 20-95% RH
Temperature 0-50°C
Voltage 3.3-5V
Weight 8g each
Teyleten offers a practical DHT11 solution with five modules in a single pack. This is perfect for workshops or educational settings where multiple sensors are needed for group projects or testing.
Pros
- Five units included
- Simple wiring
- Lightweight design
- Good value
- Beginner friendly
Cons
- Basic accuracy
- No I2C support
We may earn a commission when you buy through this link, at no additional cost to you.
The simple single-wire interface reduces wiring complexity, making it accessible for those new to Arduino development. Each module weighs only about 8 grams, keeping your builds light and compact.
While it does not offer high precision compared to SHT models, it provides consistent readings for general tasks. You might find the humidity range limited compared to more advanced commercial modules available today.
This sensor is best for those prioritizing quantity and ease of use. If you need several working units for multiple test setups, this kit provides reliable performance at a fair price point.
Lightweight Module Design
The minimal weight ensures that adding sensors does not add unnecessary bulk to small or delicate electronic prototypes and builds.
Accessible for Learners
The straightforward setup means beginners can focus on coding and logic without getting bogged down by complex circuit configurations.
We may earn a commission when you buy through this link, at no additional cost to you.
6. DHT22 AM2302 – Reliable Mounting Arduino Humidity Sensor
DHT22 Digital Temperature and Humidity Sensor AM2302 Sensors Module
Humidity 0-100% RH
Temperature -40-80°C
Compact Size
Mounting Screw Holes
This AM2302 module delivers stable performance with quick response times for real-time monitoring. The included cables simplify the wiring process, saving you time when building your Arduino humidity sensor systems.
Pros
- Includes cables
- Compact size
- Fast response
- Accurate readings
- Easy mounting
Cons
- Only two packs
- Higher cost than DHT11
We may earn a commission when you buy through this link, at no additional cost to you.
With a compact size and screw holes, it fits easily into tight enclosures while remaining secure during operation. The accuracy of ±2% RH ensures you can trust the data for controlling appliances or devices.
It may cost a bit more than basic DHT11 versions, but the reliability and included accessories add value. You might find the two-pack quantity limited if you need a bulk supply for testing.
This sensor is best for projects needing fast and stable environmental data. If you need to integrate a weather station or home appliance control, this module offers the performance and support you require.
Ready to Use Kit
Having cables included means you can start wiring your project immediately without needing to buy extra connectors separately.
Secure Fit Enclosure
The mounting holes allow for secure attachment inside boxes or panels, preventing loose connections from affecting your sensor readings.
We may earn a commission when you buy through this link, at no additional cost to you.
7. Teyleten Robot DHT22 – Versatile Pack Arduino Humidity Sensor
Teyleten Robot DHT22 / AM2302 Digital Temperature Humidity Sensor Module
Humidity 0-100% RH
Temperature -40-80°C
Voltage 3.3-5.5V
Three units included
Teyleten provides a pack of three AM2302 modules, offering more value than two-pack options. It maintains the accuracy and range standards expected from DHT22 sensors in the market.
Pros
- Three units included
- Wide voltage range
- Full humidity coverage
- Good replacement
- Serial data port
Cons
- Lower rating
- Inconsistent quality
We may earn a commission when you buy through this link, at no additional cost to you.
The operating voltage range of 3.3V to 5.5V offers flexibility across different board types. Serial data bidirectional ports ensure that you can communicate easily with your microcontroller for processing data.
Some users may experience a lower rating due to variability in unit quality. You might need to test multiple units to ensure they all meet the expected performance standards consistently.
This option suits those who need more units for larger projects without buying individual components. If you can handle some initial testing, the three-pack provides good utility for bulk sensor needs.
Bulk Sensor Availability
Three units allow you to deploy sensors in multiple rooms or areas simultaneously, providing a comprehensive view of your environment.
Flexible Voltage Support
The wide voltage range makes it compatible with most development boards you likely already have in your electronics toolkit.
We may earn a commission when you buy through this link, at no additional cost to you.
8. 10-Pack DHT11 – Bulk Supply Arduino Humidity Sensor
10-Pack DHT11 Humidity Sensor Module
Humidity 20-90% RH
Temperature 0-50°C
Onboard Components
10 Units Included
This bulk pack provides ten DHT11 sensors, making it ideal for workshops, schools, or large-scale automation projects. The onboard bypass capacitor and pull-up resistor ensure easy integration with minimal external parts.
Pros
- Ten units included
- Onboard capacitor
- Simple integration
- Cables included
- Great for workshops
Cons
- Limited accuracy
- Not for precision
We may earn a commission when you buy through this link, at no additional cost to you.
Each sensor is calibrated for reliable readings within its specified range, offering consistent performance for general monitoring. The package includes connection cables, further simplifying the setup process for users.
While it lacks high precision, the value for money is exceptional for non-critical tasks. You might find the limited humidity range a constraint for professional applications needing full 0-100% coverage.
This is the best bulk option for classrooms or large projects. If you need many affordable sensors to deploy across a large area, this 10-pack offers unmatched quantity and ease of use.
Simplified Integration
The onboard components mean you do not need to design complex circuits, allowing you to connect directly to your microcontroller.
Workshop Ready
Ten units allow every student or group to have their own sensor, ensuring everyone can learn with a personal working model.
We may earn a commission when you buy through this link, at no additional cost to you.
9. 4Pcs DHT22 – Multi-Pack Precision Arduino Humidity Sensor
4Pcs DHT22/AM2302 Digital Temperature Humidity Sensor Module
Humidity 0-100% RH
Temperature -40-80°C
High quality components
Four units included
This four-pack uses top-quality components to ensure reliable and long-lasting performance. It maintains high accuracy with ±2% RH precision and quick response times for consistent monitoring applications.
Pros
- Four units included
- Top components
- Quick response
- Anti-interference
- Compact design
Cons
- Average rating
- Price per unit
We may earn a commission when you buy through this link, at no additional cost to you.
The strong anti-interference capabilities help maintain signal integrity even in electrically noisy environments. The compact size makes it easier to fit into tight spaces compared to bulkier modules.
Some users report average ratings due to variable performance across units. You might need to test each sensor to ensure you are using the most stable units in your final build.
This sensor is best for projects needing multiple reliable units. If you need better precision than DHT11 but want multiple options for testing or expansion, this pack fits your needs well.
Anti-Interference Design
Robust shielding and circuitry help protect the signal from noise, ensuring cleaner data even in complex electrical setups.
Compact Dimensions
The small footprint allows you to mount the sensor in narrow enclosures without compromising on the functionality.
We may earn a commission when you buy through this link, at no additional cost to you.
10. 2pcs AHT30 – Advanced Sensor Arduino Humidity Sensor
2pcs AHT30 High Precision Digital Temperature and Humidity Sensor
Humidity 0-100% RH
Temperature -40-85°C
Resolution 0.01°C
4-Pin Test Line
The AHT30 is an upgraded version offering high precision for demanding applications. With a resolution of 0.01°C, it captures minute temperature changes that other sensors might miss.
Pros
- High resolution
- Wide range
- Easy connection
- Precise output
- Low power
Cons
- Higher price
- Limited count
We may earn a commission when you buy through this link, at no additional cost to you.
It supports simultaneous online access to multiple I2C devices, expanding your system possibilities. The 4-pin test line connection is straightforward, allowing for quick setup and testing.
While the two-unit count is low, the performance per unit is exceptional for accuracy. You might find the cost higher per unit compared to basic DHT options for simple hobbyist projects.
This sensor is best for precise environmental monitoring needs. If you require high-resolution data for scientific or specialized monitoring, this model provides the advanced features you need.
High Resolution Output
The fine resolution allows you to detect very small changes in temperature, which is useful for sensitive scientific experiments.
Multiple Device Access
With I2C support, you can connect several modules without cluttering your controller with excessive wiring.
We may earn a commission when you buy through this link, at no additional cost to you.
Buying Guide – How to Choose the Best Arduino Humidity Sensor
Selecting the right humidity sensor depends on your project needs and technical constraints. Consider these factors to ensure compatibility and performance for your build.
Accuracy Requirements
Accuracy varies widely between modules, with basic DHT11 units offering ±5% RH and advanced SHT models providing ±2% RH or better. Determine if your project tolerates general trends or needs precise data.
Choose higher accuracy sensors like SHT31 or AHT30 for scientific or industrial applications.
Voltage Compatibility
Ensure the sensor supports your microcontroller logic levels. Most modules work with 3.3V to 5V, but some support wider ranges like 2.4V to 5.5V for flexibility.
Check your board specs to avoid logic mismatches that can damage components or cause errors.
Communication Protocol
Single-wire options like DHT11 use simple serial protocols, while I2C options like SHT31 allow multiple devices on one bus. I2C is efficient for complex systems with many sensors.
Select I2C for multi-sensor projects and single-wire for simplicity.
Measurement Range
Humidity ranges typically span 20% to 90% for DHT11 but cover 0% to 100% for DHT22. Temperature ranges also vary, so ensure the sensor covers your expected operating environment.
Pick sensors with 0% to 100% RH range for full environmental coverage.
Pack Quantity
Some kits offer one or two units while others provide five to ten packs. Bulk kits are cost-effective for classrooms or multi-device systems.
Consider buying more units if you plan multiple projects or testing scenarios.
Mounting and Size
Physical dimensions and mounting options like screw holes affect installation. Compact designs fit in small enclosures, while larger modules may offer better heat dissipation.
Verify the size matches your enclosure and mounting capabilities.
Response Time
Faster response times are crucial for real-time monitoring. Modules like AM2302 often offer quicker response than standard DHT11 units.
Look for quick response specifications if you need instant updates.
Power Consumption
Battery-powered projects require low current modules. Check datasheets for active and sleep current ratings to maximize battery life.
Prioritize low power modules like AHT30 for portable applications.
How to Use and Care for Your Arduino Humidity Sensor
Start by connecting the VCC and GND pins to your power source and ensuring the data pin connects to a digital IO pin. For I2C sensors, use the SDA and SCL lines on your board.
Upload example code from the Arduino IDE library to test the connection and view readings in the serial monitor. Install libraries like DHT sensor library or Adafruit SHT31 for compatibility.
Place the sensor away from direct heat or moisture sources to prevent inaccurate readings and damage. Secure it properly to avoid physical stress on the wires and module connections.
Frequently Asked Questions
Which Arduino humidity sensor is the most accurate?
The Teyleten Robot SHT31-D and AHT30 sensors offer the highest accuracy, typically within ±2% RH and ±0.3°C. These outperform DHT11 and DHT22 models in precision and reliability.
Can I use DHT11 with 3.3V microcontrollers?
Yes, DHT11 works with 3.3V to 5V. However, ensure your logic levels match to avoid communication errors when using lower voltage boards like some ARM-based controllers.
How many sensors can I connect to one Arduino?
For DHT11, you can connect many using separate pins, but it may use too many GPIOs. I2C sensors like SHT31 allow multiple units on just two wires, freeing up pins.
Why are my sensor readings unstable?
Unstable readings often come from loose connections, long wires, or lack of a capacitor. Ensure you use bypass capacitors and keep wiring short to stabilize the data output.
Do these sensors work in extreme temperatures?
Standard DHT11 works from 0°C to 50°C, while DHT22 covers -40°C to 80°C. For wider ranges, choose SHT31 which operates from -40°C to 125°C for extreme conditions.
Is the DHT22 better than DHT11?
Yes, DHT22 has higher accuracy (±2% RH) and a wider range than DHT11 (±5% RH). It is slightly more expensive but provides reliable performance for serious projects.
Final Thoughts on Choosing the Best Arduino Humidity Sensor
The top picks cover a range of needs from the budget-friendly DHT11 packs to the premium SHT31 and AHT30 modules. Each option provides distinct advantages depending on your project requirements.
Prioritize accuracy and interface based on your application. For casual hobby use, DHT models work well, but precision work benefits from I2C and advanced sensors like SHT31.
Remember that availability and pricing change over time, so check current listings before purchasing. Verify specs match your design needs to ensure successful project integration.