HiLetgo 5pcs DHT11 Temperature Humidity Sensor Module
4.5Editor score
5 Pack DHT11 Modules
Single Wire Digital Output
3.3V to 5V Support
In this guide
Choosing the right humidity sensor for your Arduino projects can be challenging due to the variety of options available. Whether you need basic monitoring or high precision, understanding the differences between sensor types is crucial for success in your builds.
We have carefully evaluated ten popular humidity sensor modules based on accuracy, ease of use, voltage compatibility, and customer ratings. This guide provides a comprehensive overview to help you select the best component for your specific application needs.
Each pick highlights key specifications and real-world performance metrics to guide your decision-making process. Please note that product availability and pricing may change over time, so always verify the latest details before making your final purchase decision.
Top 3 Picks for Best Arduino Humidity Sensor
Teyleten Robot SHT31-D SHT31 Temperature Humidity Sensor Module
4.7Editor score
I2C Interface Output
0 to 100% RH Range
High Accuracy Measurement
2pcs AHT30 High Precision Digital Temperature and Humidity Sensor
5.0Editor score
I2C Communication Protocol
Low Power Consumption
Wide Voltage Range
Top 10 Best Arduino Humidity Sensor in 2026 Compared
This side-by-side comparison allows you to quickly assess the key specifications and ratings of each top-rated humidity sensor module available for Arduino projects in 2026.
ProductsSpecificationsEditor scorePrice
Best Budget
HiLetgo 5pcs DHT11
Humidity 20-90% RH
Temp 0-50°C
Accuracy +/- 5% RH
Interface Single Wire
4.5Editor score
Editor's Choice
2pcs DHT11 Sensor Module
Humidity 20-95% RH
Temp 0-50°C
Accuracy +/- 5% RH
Voltage 3.3-5V
4.3Editor score
Editor's Choice
Teyleten SHT31-D Module
Humidity 0-100% RH
Temp -40-125°C
Accuracy +/- 2% RH
Interface I2C
4.7Editor score
HiLetgo 2pcs DHT22
Humidity 0-100% RH
Temp -40-80°C
Accuracy +/- 2% RH
Single Bus Output
4.4Editor score
Teyleten DHT11 5pcs
Humidity 20-95% RH
Temp 0-50°C
Accuracy +/- 5% RH
Voltage 3.3-5V
4.4Editor score
DHT22 AM2302 Module
Humidity 0-100% RH
Temp -40-80°C
Accuracy +/- 2% RH
Compact 28mm Size
4.6Editor score
Teyleten DHT22 3pcs
Humidity 0-100% RH
Temp -40-80°C
Accuracy +/- 2% RH
Single Bus Digital
3.9Editor score
10-Pack DHT11 Module
Humidity 20-90% RH
Temp 0-50°C
Accuracy +/- 5% RH
10 Pack Kit
4.6Editor score
4Pcs DHT22 Module
Humidity 0-100% RH
Temp -40-80°C
Accuracy +/- 2% RH
4 Pack Modules
4.0Editor score
2pcs AHT30 High Precision
Humidity 0-100% RH
Temp -40-85°C
Accuracy +/- 2% RH
Interface I2C
5.0Editor score
1. HiLetgo 5pcs DHT11 – Best Budget Arduino Humidity Sensor
HiLetgo 5pcs DHT11
Single Wire Digital Output
20-90% RH Range
0-50°C Temp Range
3.3V to 5.5V Power
This HiLetgo five-pack of DHT11 modules is an ideal starting point for hobbyists needing multiple sensors without breaking the bank. With a solid 4.5 star rating from users, these sensors are known for their reliability and ease of integration into various microcontroller projects.
Pros
- Affordable five-pack kit
- Easy single-wire integration
- Onboard pull-up resistor
- Wide voltage compatibility
- Simple programming protocol
Cons
- Lower humidity accuracy
- Limited temperature range
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The DHT11 sensor features a simple single-wire digital output scheme that reduces the programming effort required. Each module comes with a bypass capacitor and pull-up resistor on-board, making connections straightforward to Arduino or Raspberry Pi GPIO ports.
While the measurement accuracy is limited to +/- 5% RH and +/- 2°C, this is acceptable for general environmental monitoring tasks. The trade-off is worth it considering the low cost and availability of five complete units with connecting cables.
If you need basic humidity and temperature data for weather stations or simple climate controls, this kit offers the best value. We recommend this for beginners or projects where high precision is not the primary requirement.
Cost-Effective Bulk Packaging
Buying in bulk reduces the per-unit cost significantly, allowing you to deploy sensors across multiple rooms or projects simultaneously.
Simple Integration
The onboard components mean you do not need external pull-up resistors, simplifying your circuit design and reducing potential wiring errors.
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2. 2pcs DHT11 Sensor Module – Affordable Dual Pack Option
2pcs DHT11 Sensor Module
Resistive Humidity Element
0-50°C Temperature Range
20-95% Humidity Range
Digital Signal Output
This two-pack of DHT11 sensors provides a balanced option for those who need a couple of units without committing to a larger bulk pack. Users appreciate the reliable long-term stability and the dedicated digital module technology that ensures consistent performance.
Pros
- Low price two-pack
- Dedicated digital module
- Reliable long-term stability
- Easy single-wire wiring
Cons
- Accuracy within 5% RH
- Restricted temperature span
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The sensor utilizes a resistive element combined with an NTC temperature measurement device to deliver accurate enough readings for most general applications. Its high-performance 8-bit microcontroller ensures data is processed efficiently for quick responses.
The single-wire wiring scheme remains a key advantage, minimizing the number of pins required on your microcontroller. This makes it perfect for projects where GPIO pins are limited but you still need temperature and humidity data.
Ideal for small DIY projects or classroom demonstrations, this pack offers good value for money. It is a practical choice for users who prioritize simplicity and cost over laboratory-grade precision.
High Reliability
The dedicated digital module technology ensures that the sensor maintains excellent long-term stability over extended periods of continuous operation.
Compact Connectivity
With a single-wire design, you save valuable GPIO pins, which is particularly useful when connecting multiple devices to the same board.
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3. Teyleten SHT31-D Module – Best Overall Arduino Humidity Sensor
Teyleten SHT31-D Module
I2C Interface Output
2.4V to 5.5V Voltage
0-100% Humidity Range
40-125°C Temperature Range
The Teyleten SHT31-D module stands out as the editor's choice due to its superior accuracy and wide operating range. With a 4.7 star rating, it delivers precision that rivals more expensive industrial sensors, making it perfect for serious makers.
Pros
- High accuracy measurement
- Wide temperature range
- I2C communication protocol
- 3-pack value kit
- Wide voltage compatibility
Cons
- Slightly higher cost
- Requires I2C pins
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Operating on a wide voltage range of 2.4V to 5.5V and using I2C communication, these sensors offer flexibility and robustness. The humidity measurement accuracy of +/- 2% RH and temperature accuracy of +/- 0.3°C are significant upgrades over basic modules.
While it requires I2C pins which are slightly more complex than single-wire setups, the ability to connect multiple sensors easily outweighs this minor hurdle. The 3-pack format provides plenty of units for various rooms or backup spares.
For projects demanding reliable data like greenhouses or smart home climate control, this sensor is the top pick. Its performance justifies the price point and ensures you get accurate readings consistently.
Superior Accuracy
The +/- 0.3°C temperature accuracy ensures precise control in applications where even small temperature deviations matter significantly.
Flexible Power Options
The wide voltage range allows operation from both 3.3V and 5V logic levels, fitting seamlessly into diverse electronic projects.
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4. HiLetgo 2pcs DHT22 – Reliable Mid-Range Option
HiLetgo 2pcs DHT22
AOSONG AM2302 Chip
0-100% Humidity Range
-40 to 80°C Temp Range
Single-bus Digital Output
Replacing the basic DHT11, the DHT22 module offers significantly better accuracy and a broader temperature range. With a 4.4 star rating, users value its ability to measure full humidity from 0% to 100% and temperatures from -40 to 80°C.
Pros
- Improved accuracy over DHT11
- Wider temperature range
- Fixing screw holes
- Full humidity coverage
- Compatible with Arduino
Cons
- Single-wire speed limit
- Fewer units in pack
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The AOSONG AM2302 chip is the core of this module, providing high sensitivity and reliable bidirectional serial data output. The convenient fixing screw holes allow you to mount the sensor securely, ensuring stable readings over time.
While still using a single-bus digital signal, the communication protocol is robust enough for most DIY applications. This makes it a great replacement for older SHT11 or SHT15 sensors in your existing projects.
Choose this if you need more precision than the DHT11 but want to keep costs low. It is an excellent upgrade for home automation projects where accuracy and reliability are increasingly important.
Enhanced Sensitivity
The AOSONG AM2302 chip ensures that the sensor can detect subtle changes in temperature and humidity with greater precision.
Secure Mounting
Integrated screw holes make installation easier and ensure the sensor remains in a fixed position for consistent environmental readings.
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5. Teyleten DHT11 5pcs – Another Bulk Budget Option
Teyleten DHT11 5pcs
3.3V to 5V Voltage
20-95% Humidity Range
0-50°C Temperature Range
Approx 8g Weight
Another strong contender in the budget category, this five-pack offers the standard DHT11 features with a 4.4 star rating. It is lightweight at roughly 8g each, making it easy to incorporate into portable projects.
Pros
- Lightweight design
- Five units included
- Standard DHT11 features
- Easy integration
- Competitive pricing
Cons
- Standard +/- 5% RH error
- Basic temperature range
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Operating on 3.3V to 5V, these modules are compatible with almost any Arduino board available. The simple single-wire interface ensures that even beginners can start reading humidity and temperature data almost immediately.
While the accuracy is standard for this sensor class, the bulk packaging makes it ideal for experiments where multiple sensors are needed for testing and validation. It is a practical choice for educational settings.
If you are looking for a spare sensor supply or need to test different locations simultaneously, this pack provides solid value. It keeps your project costs down while delivering the essential data you need.
Lightweight Design
At approximately 8g per unit, these sensors add negligible weight to your builds, perfect for drones or portable weather stations.
Standard Compatibility
Supporting 3.3V to 5V voltage ensures seamless integration with both older and newer development boards without extra components.
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6. DHT22 AM2302 Module – Compact and Stable
DHT22 AM2302 Module
28mm Length Size
0-100% Humidity Range
Quick Response Times
Bidirectional Serial Data
This JTAREA module for a 4.6 star rating, praised for its quick response times and stable performance. The compact size of 28mm makes it ideal for space-constrained applications like wearable devices or small enclosures.
Pros
- High 4.6 rating
- Compact physical size
- Quick response time
- 215mm connecting wire
- Excellent stability
Cons
- Standard DHT22 limits
- Wire length fixed
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Equipped with a 215mm connecting wire, you get enough flexibility to mount the sensor away from the main controller. The bidirectional serial data ensures robust communication with your microcontroller for accurate readings.
It is specifically designed to replace older SHT11 and SHT15 sensors in many existing applications. This makes it a great drop-in upgrade for projects where you need better humidity coverage from 0% to 100%.
For general home automation or weather stations, this sensor offers the right balance of performance and cost. Its reliability and compact design make it a solid choice for DIY electronic practice.
Quick Response Times
The sensor is engineered to deliver rapid updates, ensuring you get timely environmental data without long delays.
Flexible Mounting
The included 215mm wire allows you to position the sensor in areas that need monitoring without restricting your main circuit.
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7. Teyleten DHT22 3pcs – Three Pack Value
Teyleten DHT22 3pcs
3.3 to 5.5V Voltage
0-100% Humidity Range
-40 to 80°C Temp Range
Single Bus Digital Output
With a 3.9 star rating, this three-pack is a straightforward option for those needing multiple units of the upgraded DHT22 sensor. It covers the full humidity range from 0% to 100% and operates on a flexible voltage range.
Pros
- Three units included
- Wide voltage range
- Replaces older sensors
- Affordable kit
- Standard DHT22 specs
Cons
- Lower user rating
- Basic interface protocol
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The single bus digital signal output simplifies wiring while maintaining good accuracy for hobbyist projects. It is specifically marketed as a replacement for SHT11 and SHT15 sensors, making migration easy.
The three-pack format provides a good balance between quantity and cost, ideal for multi-room monitoring setups. While the rating is lower, it still meets the functional needs for most standard Arduino projects.
If you need three sensors without paying for a larger bulk pack, this is a practical solution. It delivers consistent performance and fits well within tight project budgets.
Voltage Flexibility
Operating between 3.3V and 5.5V ensures compatibility with a wide variety of microcontrollers and logic levels.
Direct Replacement
Designed to replace older models directly, this module simplifies upgrading existing circuits without major redesigns.
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8. 10-Pack DHT11 Module – Massive Bulk Kit
10-Pack DHT11 Module
10 Units Included
Onboard Components
0-50°C Range
20-90% Humidity Range
This ten-pack is designed for workshops and classrooms that need a substantial inventory of sensors. With a 4.6 star rating, users value the inclusion of onboard components that minimize external circuitry and simplify connections.
Pros
- Large quantity pack
- Onboard bypass capacitor
- Onboard pull-up resistor
- Excellent for workshops
- High value rating
Cons
- Basic sensor limitations
- Overkill for small projects
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Each module features a bypass capacitor and pull-up resistor, meaning you just need to connect power and a data line. The 3.3V to 5.5V compatibility ensures it works with almost any microcontroller available.
While the sensor itself is standard DHT11 hardware, the quantity makes it perfect for large-scale home automation data logging or extensive testing. You never run out of spares when something breaks during prototyping.
For educational purposes or large projects, this kit is the most cost-effective way to get started. It removes the barrier of component scarcity and allows for extensive experimentation.
Built-in Circuitry
The onboard bypass capacitor and pull-up resistor reduce the need for additional external components on your breadboard.
Bulk Value
Ten units ensure you have enough sensors for multiple prototypes, reducing the need to reorder parts constantly.
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9. 4Pcs DHT22 Module – Four Unit Upgrade Kit
4Pcs DHT22 Module
3 to 5.5V Voltage
Compact Design
0-100% Humidity Range
Bidirectional Serial Data
This four-pack is built with top-of-the-line electronics components to ensure long-lasting performance. With a 4.0 star rating, it offers accurate environmental readings with precision that fits most general hobbyist needs.
Pros
- Top-quality components
- Precise readings
- Compact footprint
- Single-wire wiring
- Four pack quantity
Cons
- Average rating score
- Standard DHT22 specs
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Operating from 3V to 5.5V, these modules are easy to power and integrate into various electronic projects. The compact size allows for clean designs without crowding your board with large components.
The advanced digital signal output and high-performance 8-bit microcontroller ensure long-term stability and strong anti-interference capabilities. This makes the sensor reliable even in electrically noisy environments.
For those needing four reliable sensors for a home system, this kit is a solid choice. It provides a good balance of quality and quantity for serious DIY applications.
Anti-Interference
Strong anti-interference capabilities ensure your readings remain accurate even when the sensor is near motors or other electronics.
Premium Components
Using top-of-the-line electronics ensures the module can withstand daily use without degrading over time.
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10. 2pcs AHT30 High Precision – Premium Accuracy Module
2pcs AHT30 High Precision
I2C Master Output
2.0 to 5V Voltage
0.01°C Temperature Resolution
0.024%RH Humidity Resolution
Achieving a perfect 5.0 star rating, the AHT30 module is the premium choice for those demanding the highest precision. Its I2C master output allows simultaneous access to multiple devices, making it ideal for complex sensor networks.
Pros
- Perfect 5.0 rating
- High resolution readings
- Stable transmission speed
- I2C multi-device support
- Low power consumption
Cons
- Higher price point
- I2C wiring complexity
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With a resolution of 0.01°C and 0.024%RH, this sensor detects minute environmental changes that other sensors might miss. The stable and fast transmission speed ensures real-time data without lag or packet loss.
The voltage range from 2.0V to 5.5V makes it adaptable to various systems while maintaining low power consumption. This efficiency is beneficial for battery-powered projects that need to run for extended periods.
If you need industrial-grade precision for scientific or critical monitoring tasks, this is the module to choose. The perfect user rating confirms its reliability and performance in real-world conditions.
Ultra-High Resolution
The resolution of 0.01°C and 0.024%RH allows for incredibly detailed environmental tracking and control.
Multi-Device Support
I2C master output supports connecting multiple modules easily on the same bus without pin conflicts.
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Buying Guide – How to Choose the Best Arduino Humidity Sensor
Selecting the right sensor requires evaluating accuracy, communication protocol, voltage requirements, and price to match your project needs.
Measurement Accuracy
Accuracy determines how close the sensor reading is to the actual value. High-end models like SHT31 or AHT30 offer +/- 2% RH accuracy, while budget DHT11 units are usually +/- 5% RH. For weather stations, high accuracy is crucial, whereas simple monitoring can tolerate more error.
Prioritize accuracy based on your application requirements to avoid overpaying or under-delivering data quality.
Communication Protocol
Sensors use different interfaces like I2C or single-wire digital buses. I2C supports multiple devices on fewer pins but is slightly more complex to wire. Single-wire is simpler but uses more GPIO pins for each sensor added.
Choose I2C for multi-sensor projects and single-wire for simple setups with limited code experience.
Voltage Compatibility
Arduino boards operate at 3.3V or 5V logic levels. Ensure your sensor supports your board's voltage to prevent damage. Modules labeled 3.3V to 5.5V are versatile and work with both standard and 3.3V boards.
Always check voltage specs to ensure safe connection with your specific microcontroller.
Humidity and Temperature Range
Standard DHT11 sensors only measure up to 50°C, while DHT22 and SHT31 go up to 80°C or higher. Consider your environment; indoor home projects are fine with lower ranges, but outdoor industrial use needs wider limits.
Select a range that covers the maximum and minimum expected conditions in your deployment location.
Mounting and Form Factor
Some modules come with screw holes for easy mounting, while others rely on wire connections. The physical size also matters for compact projects like wearables. Larger modules might be easier to handle but harder to hide.
Check physical dimensions and mounting options to ensure fit in your enclosure.
Response Time
Response time is how quickly the sensor detects changes. Sensors with faster response times provide more real-time data which is vital for dynamic environments. Standard DHT sensors have slower response compared to newer digital modules.
Choose faster response time for projects requiring frequent updates or alarms.
Pack Size and Value
Sensors are sold in singles, 2-packs, 5-packs, or even 10-packs. Buying in bulk reduces per-unit cost and ensures spares. However, you only need one unit for a single device. Plan for future expansion before buying.
Buy bulk packs for workshops or multi-room setups to save money long term.
Power Consumption
Battery-powered projects require low power sensors. While many modules are similar, newer AHT series offer optimized low power modes. High-performance sensors might drain batteries faster than simple ones.
Check power requirements if using battery power to maximize runtime between charges.
How to Use and Care for Your Arduino Humidity Sensor
Connect the sensor to your Arduino using the correct voltage and ground pins. For I2C sensors, connect SDA and SCL lines. For single-wire sensors, use a GPIO pin and pull-up resistor if not onboard.
Install the required library in your Arduino IDE. Most sensors like DHT11 use the Adafruit or Sparkfun libraries. Load the example code to read initial values and ensure communication is working.
Place the sensor in the area you want to monitor, away from direct sunlight or heat sources. Ensure proper ventilation around the sensor to get accurate airflow readings.
Frequently Asked Questions
What is the difference between DHT11 and DHT22?
DHT11 measures up to 50°C with 5% RH accuracy, while DHT22 goes up to 80°C with 2% RH accuracy. DHT22 is more expensive but better for demanding projects.
How long does a humidity sensor last?
Most DHT sensors last for years if kept dry. However, exposure to extreme humidity or water can damage them. Check for drift over time.
Can I use humidity sensors with 3.3V boards?
Yes, many modules support 3.3V to 5.5V. Always check the datasheet. Some DHT11 versions are 5V only so use with caution.
Do I need a separate pull-up resistor?
Most breakout boards include the pull-up resistor. If you solder directly to the raw chip, you will need a 10k resistor to VCC.
Why are my readings fluctuating?
Fluctuations can come from noise, wiring length, or unstable power. Use a stable power source and ensure connections are tight for stable readings.
Which sensor is best for a smart thermostat?
SHT31 or AHT30 are recommended due to high accuracy and wide temperature range. They ensure your thermostat responds correctly to room changes.
Final Thoughts on Choosing the Best Arduino Humidity Sensor
We reviewed ten sensors from budget DHT11 kits to premium AHT30 modules. Each offers different value depending on your precision and budget needs.
Prioritize accuracy and voltage compatibility for your specific project. If you need multiple units, bulk DHT kits save money. For precision, SHT or AHT sensors are worth the investment.
Prices and availability may change. Check current listings to confirm details before buying the right sensor for your next build.