HiLetgo 5pcs DHT11 Temperature Humidity Sensor Module
4.5Editor score
Includes five sensor modules
Single-wire digital output
Compatible with 3.3V and 5V
In this guide
Finding the right humidity sensor for your Arduino projects is essential for reliable environmental monitoring. A good sensor provides accurate data, easy integration, and stable performance over time. Whether you are building a weather station or a smart home device, the right choice matters.
We compared ten popular humidity sensors based on their specifications, user ratings, and compatibility with common microcontrollers. Our analysis covers digital output options, measurement ranges, and ease of programming to ensure you get a product that fits your specific application requirements effectively.
Each pick in this list highlights key features and real-world performance expectations based on available data. Please note that product availability and pricing can change frequently, so always check the latest details on the product page before making your final purchase decision for your build.
Top 3 Picks for Best Arduino Humidity Sensor
Teyleten Robot SHT31-D SHT31 Temperature Humidity Sensor Module
4.7Editor score
I2C interface for simple wiring
Wide voltage range support
High accuracy readings
2pcs AHT30 High Precision Digital Temperature and Humidity Sensor Measurement Module
5.0Editor score
Ultra high precision measurements
I2C communication protocol
Low power consumption design
Top 10 Best Arduino Humidity Sensor in 2026 Compared
This table provides a side-by-side comparison of the top ten Arduino humidity sensors available on the market today. Each entry includes essential specifications to help you quickly identify which model meets your project requirements without reading through lengthy descriptions.
ProductsSpecificationsEditor scorePrice
Best Budget
HiLetgo 5pcs DHT11 Module
Humidity Range 20-95%RH
Temp Range 0-50°C
Single Wire Digital Output
Includes 5 Modules
4.5Editor score
Editor's Choice
2pcs DHT11 Module
Humidity Range 20-95%RH
Temp Range 0-50°C
Digital Signal Output
Includes 2 Modules
Editor's Choice
Teyleten Robot SHT31-D Module
Humidity Range 0-100%RH
Temp Range -40-125°C
I2C Interface Output
Wide Voltage Support
4.7Editor score
HiLetgo 2pcs DHT22 Module
Humidity Range 0-100%RH
Temp Range -40-80°C
AM2302 Chipset
Includes 2 Modules
4.4Editor score
Teyleten Robot DHT11 5pcs
Humidity Range 20-95%RH
Temp Range 0-50°C
3.3V-5V Voltage
Includes 5 Modules
4.4Editor score
DHT22 Digital Sensor Module
Humidity Range 0-100%RH
Temp Range -40-80°C
Bidirectional Serial Data
Includes 2 Modules
4.6Editor score
Teyleten Robot DHT22 3pcs
Humidity Range 0-100%RH
Temp Range -40-80°C
Single Bus Output
Includes 3 Modules
3.9Editor score
10-Pack DHT11 Humidity Module
Humidity Range 20-90%RH
Temp Range 0-50°C
Onboard Capacitor Included
Includes 10 Modules
4.6Editor score
4Pcs DHT22 Module
Humidity Range 0-100%RH
Temp Range -40-80°C
High Quality Components
Includes 4 Modules
4.0Editor score
2pcs AHT30 Sensor Module
Humidity Range 0-100%RH
Temp Range -40-85°C
I2C Master Output
Includes 2 Modules
5.0Editor score
1. Teyleten Robot SHT31-D SHT31 Temperature Humidity Sensor Module – Best Overall Arduino Humidity Sensor
Teyleten Robot SHT31-D SHT31 Temperature Humidity Sensor Module
I2C output interface
Wide voltage range
High accuracy specs
3 pack included
The Teyleten Robot SHT31-D sensor stands out for its high precision and versatile voltage support. With a 4.7 rating from users, this module is a favorite for projects requiring reliable data without complex wiring setups.
Pros
- Superior accuracy ratings
- Simple I2C interface
- Wide temperature range
- Multiple units included
- Stable long term
Cons
- Higher cost per unit
- I2C requires more pins
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Its I2C interface simplifies connections by using just two wires for communication. The measurement accuracy of plus or minus 2 percent relative humidity ensures you get trustworthy readings for environmental monitoring tasks.
While it costs more than basic DHT models, the improved accuracy and wider temperature range justify the investment. It handles temperatures from minus 40 to 125 degrees Celsius effectively in various conditions.
This sensor is ideal for professionals or hobbyists who prioritize data quality. If you need stable readings for a weather station or climate control system, this module delivers consistent performance.
Easy I2C Integration
The I2C protocol allows multiple devices to share the same bus reducing pin usage on your Arduino board.
High Precision Data
With an accuracy of 2 percent RH this sensor provides detailed information for critical monitoring applications.
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2. HiLetgo 5pcs DHT11 Temperature Humidity Sensor Module – Best Budget Arduino Humidity Sensor
HiLetgo 5pcs DHT11 Temperature Humidity Sensor Module
20-95% RH range
3.3V to 5V
Single wire output
5 pack value
This 5-pack of DHT11 modules offers exceptional value for beginners learning to read environmental data. With a 4.5 rating, it remains one of the most popular entry-level sensors for Arduino projects due to its simplicity and ease of use.
Pros
- Great bulk value
- Simple digital output
- Wide voltage compatibility
- Includes cables
- Easy to code
Cons
- Limited humidity range
- Slower sample rate
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The single-wire digital signal makes programming straightforward even for those new to microcontrollers. Each module comes with wires so you can start testing immediately without additional hardware purchases or complex soldering work.
It supports both 3.3V and 5V power supplies making it compatible with many different boards. The measurement range covers typical indoor conditions well though it may not suit extreme environments or precise scientific research.
Choose this pack if you need multiple sensors for classroom setups or testing different locations. The included cables and clear documentation help you get started quickly on your next automation project.
Beginner Friendly Setup
The included wires and simple protocol make this the perfect starting point for new makers.
Value Pack Option
Buying five units at once ensures you have spares and can run multiple experiments simultaneously.
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3. 2pcs AHT30 High Precision Digital Temperature and Humidity Sensor Measurement Module – Best Premium Arduino Humidity Sensor
2pcs AHT30 High Precision Digital Temperature and Humidity Sensor Measurement Module
0-100% RH range
-40 to 85°C temp
High precision accuracy
2 pack included
With a perfect 5.0 rating this AHT30 sensor module is highly regarded for its precision and reliability. It represents the top tier of humidity sensors available for Arduino users who demand accuracy in their data logging applications.
Pros
- Perfect user rating
- Full humidity range
- High resolution output
- Low power usage
- Fast transmission speed
Cons
- Requires I2C library
- Higher price point
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The module supports a full 0 to 100 percent relative humidity range with a resolution of 0.024 percent RH. This level of detail allows for detecting minute changes in environmental conditions that other sensors might miss entirely.
Its I2C communication ensures stable and fast transmission speed which is crucial for real-time monitoring systems. The low power consumption design makes it suitable for battery-powered projects without sacrificing measurement quality.
This is the ideal choice for advanced projects requiring exact environmental tracking. Whether you are calibrating a greenhouse or monitoring a clean room this sensor delivers the performance you need.
Unmatched Resolution
The high resolution allows for detection of subtle humidity changes ideal for scientific applications.
Optimized Power Use
Low power consumption extends battery life in remote or mobile monitoring installations significantly.
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4. HiLetgo 2pcs DHT22/AM2302 Digital Temperature and Humidity Sensor Module – Best All Purpose Arduino Humidity Sensor
HiLetgo 2pcs DHT22/AM2302 Digital Temperature and Humidity Sensor Module
AM2302 chip used
Full humidity range
High accuracy specs
Includes mounting holes
This DHT22 module improves on the DHT11 with better accuracy and a wider measurement range. A 4.4 rating reflects its reliability for users who need more than basic humidity detection for their electronic practice and DIY projects.
Pros
- Full 100% RH range
- Better accuracy than DHT11
- Mounting holes included
- Wide temp range
- Digital signal output
Cons
- Requires pull-up resistor
- Slower than I2C
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The AM2302 chip provides a humidity range of 0 to 100 percent relative humidity with 2 percent accuracy. It also measures temperatures from minus 40 to 80 degrees Celsius making it suitable for various climates and settings.
Fixing screw holes allow for secure mounting in enclosures or on surfaces. The bidirectional serial data ensures you can integrate this sensor easily into existing Arduino sketches without major code changes.
Select this module if you need a reliable middle ground between cost and performance. It is perfect for weather stations or smart home devices where accuracy matters more than speed.
Reliable Chipset
The AM2302 chipset is known for stability and better accuracy compared to simpler DHT models.
Physical Mounting Options
Screw holes make it easy to mount securely in permanent installations without extra hardware.
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5. Teyleten Robot DHT11 Digital Temperature and Humidity Sensor Module – Best For Raspberry Pi Users
Teyleten Robot DHT11 Digital Temperature and Humidity Sensor Module
0-50 degree range
5 pack quantity
8g weight each
Digital interface
This Teyleten Robot DHT11 kit is marketed for use with both Arduino and Raspberry Pi platforms. With a 4.4 rating it offers a straightforward solution for users who need basic humidity readings across multiple devices.
Pros
- Lightweight design
- Raspberry Pi compatible
- Includes multiple units
- Standard digital output
- Wide voltage support
Cons
- Limited temp range
- Accuracy not precise
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Each module weighs about 8 grams making it very light for compact project designs. The operating voltage range from 3.3V to 5V ensures compatibility with both popular development boards easily.
The 5-pack quantity is useful for multi-room monitoring or testing different sensor locations. The error tolerance of plus or minus 2 degrees is acceptable for general comfort monitoring applications.
If you are working with Raspberry Pi this module integrates smoothly with existing GPIO pins. It is a cost-effective way to gather environmental data without needing expensive industrial sensors.
Cross Platform Support
Works with Arduino and Raspberry Pi allowing flexible project designs across different boards.
Compact Weight
The lightweight design helps keep overall project weight low for portable or mobile devices.
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6. DHT22 Digital Temperature and Humidity Sensor AM2302 Sensors Module – Best For Electronic Practice
DHT22 Digital Temperature and Humidity Sensor AM2302 Sensors Module
155mm wire length
28x12x10mm size
High stability rating
Includes cables
This JTAREA DHT22 sensor module is designed for quick integration into electronic practice and DIY builds. A 4.6 rating suggests users appreciate its stable performance and fast response times in various hobbyist projects.
Pros
- Long connecting wires
- Compact size
- Fast response times
- Includes mounting holes
- Good stability
Cons
- Only 2 per pack
- Wires may tangle
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The 155mm connecting wires provide plenty of slack to position the sensor away from the main board. This helps avoid heat interference from the microcontroller which could affect measurement accuracy over time.
Its compact 28mm by 12mm by 10mm dimensions fit easily into tight enclosures. Screw holes on the side make installation straightforward for any application needing secure placement.
For educational purposes or home automation this module offers a balance of quality and ease of use. The included cables mean you can start testing immediately without extra wiring components.
Extended Wire Length
The 155mm wires allow flexible positioning to avoid heat sources on the main board.
Quick Response
Fast response times ensure timely updates for applications like fans or alarms.
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7. Teyleten Robot DHT22 / AM2302 Digital Temperature Humidity Sensor Module – Best Medium Pack
Teyleten Robot DHT22 / AM2302 Digital Temperature Humidity Sensor Module
Wide voltage range
0-100% RH range
Serial data bidirectional
3 pack quantity
This Teyleten Robot DHT22 kit includes three modules for projects requiring redundancy or multiple zones. While the rating is slightly lower than some competitors it still offers solid specs for general Arduino humidity measurement needs.
Pros
- 3 unit pack
- Full humidity range
- Supports 5.5V
- Compact design
- Simple wiring
Cons
- Lower user rating
- Fewer quality checks
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The operating voltage range extends up to 5.5V which provides extra headroom for power supply variations. The full 0 to 100 percent relative humidity measurement ensures coverage for all typical environments.
The bidirectional serial data port supports standard communication protocols widely used in maker communities. This makes it straightforward to add the sensor to existing code bases without custom drivers.
Choose this option if you need three units at a moderate price. It is suitable for non-critical applications where absolute precision is less important than basic functionality.
Voltage Flexibility
The 5.5V support ensures stable operation even with slight power supply voltage spikes.
Multi-Zone Potential
Three units allow you to monitor different rooms or zones independently with one purchase.
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8. 10-Pack DHT11 Humidity Sensor Module – Best For Classrooms
10-Pack DHT11 Humidity Sensor Module
20-90% RH range
Onboard components included
10 sensor pack
Digital signal output
This 10-pack of DHT11 modules is perfect for workshops, classrooms, or large-scale home automation projects. With a 4.6 rating it stands out as a cost-effective bulk solution for educators and enthusiasts needing many sensors.
Pros
- Bulk quantity ideal
- Onboard capacitor
- Pull-up resistor included
- High rating
- User-friendly
Cons
- Limited to 20% RH
- Not for extreme cold
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Each module features an onboard bypass capacitor and pull-up resistor which minimizes external circuitry. This simplifies connections to your microcontroller and reduces the risk of wiring errors during setup.
The calibrated units offer reliable digital signal output for consistent monitoring. The measurement range covers typical indoor environments making it suitable for most educational or basic smart home tasks.
If you are outfitting a classroom or building a large sensor network this value pack is the best choice. It provides everything you need to start multiple projects without buying components separately.
Reduced Circuitry
Onboard components mean you do not need extra parts to connect to your controller.
Ideal for Workshops
The bulk pack ensures every student or project has a dedicated sensor unit.
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9. 4Pcs DHT22/AM2302 Digital Temperature Humidity Sensor Module – Best For Multi Device Projects
4Pcs DHT22/AM2302 Digital Temperature Humidity Sensor Module
4 unit quantity
High quality components
Digital signal output
Lightweight design
This 4-pack of DHT22 modules offers a balanced number of units for multi-device projects. With a 4.0 rating it provides reliable performance for home appliances, dehumidifiers, and other related humidity detection applications.
Pros
- Includes 4 units
- Fast response
- Lightweight body
- Compact size
- Versatile applications
Cons
- Average rating score
- No extra cables
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Top-of-the-line electronic components ensure long-lasting performance across various setups. The high-performance 8-bit microcontroller on board ensures stability and quick response times for real-time data updates.
The compact size and lightweight design help reduce the overall weight of your project. This is particularly useful if you are integrating sensors into portable or wearable environmental monitoring devices.
For users who need four sensors at once this pack saves time and effort. It is a practical solution for building multiple identical devices or testing different configurations.
Quality Components
Top electronics ensure the sensors last longer and perform consistently over time.
Lightweight Construction
The low weight is beneficial for portable or mobile environmental monitoring projects.
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10. 2pcs AHT30 High Precision Digital Temperature and Humidity Sensor Measurement Module – Best Advanced Sensor
2pcs AHT30 High Precision Digital Temperature and Humidity Sensor Measurement Module
0.01C resolution
Upgraded version
Low power design
Simple circuit
This AHT30 sensor is an upgraded version that supports simultaneous access to multiple I2C devices easily. With a 5.0 rating it is praised for its precision and stable transmission speed in advanced monitoring scenarios.
Pros
- High resolution output
- 0.03C accuracy
- Simple circuit design
- Upgraded performance
- Multiple device support
Cons
- Requires I2C wiring
- Limited to 2 units
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The resolution of 0.01 degrees Celsius and 0.024 percent RH provides detailed data for sensitive applications. This level of granularity is far superior to standard DHT modules used in basic hobbyist projects.
Its simple circuit design requires minimal external components to function correctly. The DC 2.0V to 5V voltage range adapts easily to different power supplies without complex regulation circuits.
For developers or researchers needing precise environmental data this module is the best choice. It offers the accuracy required for scientific experiments or high-end climate control systems.
High Resolution
The 0.01 degree resolution allows detection of tiny temperature fluctuations in the environment.
Upgraded Performance
As an upgraded version it builds on previous models to offer improved stability and speed.
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Buying Guide – How to Choose the Best Arduino Humidity Sensor
Choosing the right humidity sensor involves evaluating several technical factors to ensure compatibility and accuracy for your specific project needs.
Measurement Range
The measurement range defines the limits of humidity and temperature the sensor can detect. Some sensors only cover indoor ranges like 20 to 95 percent relative humidity while others offer full 0 to 100 percent coverage. If you expect extreme conditions or need to track saturation levels always select a module with a wider range.
Check the manufacturer specifications to ensure the sensor covers your expected environmental conditions.
Accuracy and Precision
Accuracy refers to how close the reading is to the actual value while precision indicates resolution. Most budget sensors offer 2 to 5 percent humidity accuracy which is fine for general projects. For scientific or industrial applications look for modules with plus or minus 2 percent or better accuracy.
Higher accuracy models cost more but provide reliable data for critical applications.
Output Interface
Common interfaces include single-wire digital output and I2C protocol. Single-wire is easy to connect but uses more processor time for data requests. I2C allows multiple devices on the same bus and is faster for complex systems.
Choose I2C for multiple sensors or high speed needs and digital for simplicity.
Operating Voltage
Arduino boards typically run at 5V or 3.3V so the sensor must match your power supply. Many modern modules support a wide range from 3.3V to 5.5V making them versatile. Always verify voltage requirements to avoid damaging the component or getting erratic readings.
Ensure your power supply matches the sensor's supported voltage range for stable operation.
Response Time
Response time is how long the sensor takes to update after a change in conditions. Some sensors update quickly while others take several seconds between readings. Fast response is vital for feedback loops like controlling fans or humidifiers.
If real-time control is needed prioritize sensors with fast response times.
Long Term Stability
Stability refers to how consistent the sensor remains over months or years. Some units drift over time requiring recalibration. Look for modules that mention long-term stability in their technical documentation for durable projects.
Modules with high stability ratings reduce maintenance needs in permanent installations.
Size and Form Factor
The physical size matters if you have limited space inside an enclosure. Most modules are compact but some include large heat sinks or connectors. Measure your available space before buying to ensure it fits.
Consider the dimensions if you are building tight or portable projects.
Pack Quantity
Some products sell single units while others offer packs of three five or ten. Buying a pack can save money if you need multiple sensors. However ensure the price per unit makes sense for your budget.
Bulk packs are often better value for classrooms or multi-zone monitoring.
How to Use and Care for Your Arduino Humidity Sensor
Connect the sensor wires to your Arduino board carefully matching VCC GND and data pins. For I2C sensors connect SDA and SCL to the designated pins on your board and ensure a pull-up resistor is present.
Install the appropriate library in your IDE to read the sensor data efficiently. Use standard functions to request temperature and humidity values and handle any data errors gracefully in your code.
Place the sensor in an open area away from heat sources and direct water contact. Keep it clean from dust and avoid extreme temperatures to maintain long-term accuracy and prevent physical damage.
Frequently Asked Questions
How do I connect an Arduino humidity sensor to a microcontroller?
Connect the VCC pin to power and GND to ground. Connect the data pin to a digital input pin on your Arduino. If using I2C use the SDA and SCL pins. Ensure you use the correct voltage for your board model.
What is the difference between DHT11 and DHT22 sensors?
The DHT22 has a wider temperature range and higher accuracy than the DHT11. It also measures humidity up to 100 percent while the DHT11 stops at 95 percent. The DHT22 is slightly larger but more precise.
Why is my humidity reading unstable?
Unstable readings can result from loose wires or power supply issues. Check that connections are secure and the voltage is steady. If the sensor is too close to a heat source it may also cause erratic data.
Can I use these sensors outdoors?
Most standard humidity sensors are not waterproof and should be protected from rain. Use a weatherproof enclosure to shield the sensor from water while allowing air to reach the sensing element.
Do I need a library to read the sensor?
Yes most of these modules require a specific library to interpret the digital signals correctly. Popular options include the Adafruit DHT library which simplifies reading temperature and humidity data.
How often should I calibrate the sensor?
Most consumer-grade sensors do not require frequent calibration. If you need high precision check with the manufacturer. Generally these modules stay stable for long periods without user intervention.
What power supply should I use?
Most sensors work with 3.3V to 5V power supplies. Ensure your power source provides enough current to run the sensor and your microcontroller simultaneously without voltage drops.
Can I connect multiple humidity sensors to one Arduino?
Yes you can connect multiple sensors using the I2C protocol which shares the same bus. If using single-wire sensors you will need separate digital pins for each module.
Final Thoughts on Choosing the Best Arduino Humidity Sensor
We reviewed ten top options ranging from budget-friendly DHT11 packs to high-precision AHT30 modules. Each sensor offers unique features suited for different project requirements and skill levels.
Prioritize accuracy and interface type based on your application. If you need simple indoor monitoring DHT11 or DHT22 modules work well. For advanced data logging choose an I2C sensor like the SHT31 or AHT30.
Always verify current product availability and compatibility before purchasing. Checking the latest user reviews can also help you confirm that the sensor meets your expectations for performance and support.