HiLetgo DHT11 5pcs Pack
4.5Editor score
Simple single-wire interface
Includes five modules and cables
Great for beginners and bulk needs
In this guide
Choosing the right Arduino humidity sensor is crucial for reliable environmental monitoring projects. Whether you are building a weather station, smart home device, or agricultural monitor, accurate data matters. This guide reviews ten top-rated modules to help you find the perfect match.
We compared these products based on accuracy, voltage compatibility, communication protocol, and user feedback. Each sensor offers unique strengths, from budget-friendly digital outputs to high-precision I2C interfaces. Our analysis ensures you understand the trade-offs before making a purchase.
Each pick includes detailed specs, pros, cons, and real-world application advice. Prices and availability change frequently, so check current listings before buying. Use this guide to streamline your selection process and start building with confidence.
Top 3 Picks for Best Arduino Humidity Sensor
Teyleten Robot SHT31-D Module
4.7Editor score
High precision I2C output
Wide operating voltage range
Excellent temperature accuracy
2pcs AHT30 High Precision Module
5.0Editor score
Superior 0.01C resolution
Low power consumption design
High accuracy I2C communication
Top 10 Best Arduino Humidity Sensor in 2026 Compared
This side-by-side comparison highlights key specifications across all ten selected humidity sensors. Evaluate voltage ranges, accuracy levels, and interface types to determine which module best suits your specific Arduino project requirements.
ProductsSpecificationsEditor scorePrice
Best Budget
HiLetgo DHT11 5pcs
Range: 20-90% RH
Voltage: 3.3-5V
Accuracy: ±5% RH
Interface: Single wire
4.5Editor score
Editor's Choice
2pcs DHT11 Module
Range: 20-95% RH
Voltage: 3.3-5V
Accuracy: ±5% RH
Interface: Single wire
Editor's Choice
Teyleten SHT31-D 3pcs
Range: 0-100% RH
Voltage: 2.4-5.5V
Accuracy: ±2% RH
Interface: I2C
4.7Editor score
HiLetgo DHT22/AM2302 2pcs
Range: 0-100% RH
Voltage: 3.3-5V
Accuracy: ±2% RH
Interface: Single bus
4.4Editor score
Teyleten DHT11 5pcs
Range: 20-95% RH
Voltage: 3.3-5V
Accuracy: ±5% RH
Interface: Digital output
4.4Editor score
DHT22 AM2302 2pcs
Range: 0-100% RH
Voltage: 3.3-5V
Accuracy: ±2% RH
Interface: Single bus
4.6Editor score
Teyleten DHT22 3pcs
Range: 0-100% RH
Voltage: 3.3-5.5V
Accuracy: ±2% RH
Interface: Serial data
3.9Editor score
10-Pack DHT11 Module
Range: 20-90% RH
Voltage: 3.3-5.5V
Accuracy: ±5% RH
Interface: Digital output
4.6Editor score
4Pcs DHT22/AM2302
Range: 0-100% RH
Voltage: 3-5.5V
Accuracy: ±2% RH
Interface: Digital output
4.0Editor score
2pcs AHT30 High Precision
Range: 0-100% RH
Voltage: 2-5.5V
Accuracy: ±2% RH
Interface: I2C
5.0Editor score
1. Teyleten Robot SHT31-D Module – Best Overall Sensor
Teyleten Robot SHT31-D Module
Voltage: 2.4-5.5V
Humidity Range: 0-100% RH
Temperature Accuracy: ±0.3°C
Interface: I2C
The Teyleten Robot SHT31-D Module stands out as the best overall choice for serious Arduino projects requiring precision. With a 4.7-star rating, users appreciate its I2C output and wide voltage range, making it versatile for many microcontrollers.
Pros
- High precision measurements
- Wide voltage compatibility
- I2C multi-device support
- Excellent long-term stability
- Includes three modules
Cons
- Slightly higher cost
- Requires I2C libraries
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Its standout quality lies in the accuracy, measuring temperature to ±0.3°C and humidity to ±2% RH. The wide operating voltage from 2.4V to 5.5V ensures it works seamlessly with 3.3V and 5V systems alike. The I2C interface simplifies wiring compared to single-bus sensors.
While it costs more than basic DHT models, the trade-off is justified by superior reliability and performance. Users needing consistent data for environmental monitoring will find the extra investment worthwhile. The pack includes three units for multiple locations.
This module is ideal for developers building professional-grade weather stations or smart home systems. If precision and stability are your priorities over minimal cost, this SHT31-D sensor delivers exceptional value and performance.
Superior Precision
The SHT31-D offers industry-leading accuracy, ensuring your data logging projects maintain high fidelity over time.
Versatile Voltage
Operating from 2.4V to 5.5V allows easy integration with both 3.3V logic boards and standard 5V systems.
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2. HiLetgo DHT11 5pcs Pack – Best Budget Option
HiLetgo DHT11 5pcs Pack
Voltage: 3.3-5V
Humidity Range: 20-95% RH
Temperature Range: 0-50°C
Interface: Single wire
The HiLetgo DHT11 5pcs Pack is the top budget pick, offering five ready-to-use modules at an unbeatable price. Rated 4.5 stars, it is the go-to for beginners who want multiple sensors for class projects or testing setups.
Pros
- Very affordable price
- Five modules included
- Easy single-wire setup
- Includes connecting cables
- Great for learning
Cons
- Lower accuracy than others
- Limited temperature range
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Its main strengths include simplicity and value. The single-wire protocol makes programming easy with standard Arduino libraries. Bypass capacitors and pull-up resistors are on board, reducing external components. The included cables save time and frustration.
Accuracy is modest at ±5% RH, which is fine for general hobby use but not precision industrial needs. Temperature range is limited to 0-50°C, so avoid extreme environments. However, for most indoor projects, it performs reliably.
Buy this if you need multiple sensors or are new to electronics. It removes cost barriers while providing solid functionality for learning and prototyping basic humidity monitoring systems.
Complete Kit Value
The inclusion of five modules and five cables ensures you have everything needed for immediate prototyping and testing.
Beginner Friendly
Simple wiring and standard library support make this the easiest entry point into environmental sensing projects.
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3. 2pcs AHT30 High Precision Module – Best Premium Sensor
2pcs AHT30 High Precision Module
Voltage: 2.0-5.5V
Humidity Range: 0-100% RH
Resolution: 0.01°C / 0.024% RH
Interface: I2C
The 2pcs AHT30 High Precision Module holds a perfect 5.0 rating, making it the ultimate premium pick. It offers 0.01°C resolution and I2C communication, ideal for applications demanding extreme data fidelity and low power usage.
Pros
- Perfect 5.0 rating
- Highest resolution available
- Low power consumption
- Fast transmission speed
- Wide voltage range
Cons
- Newer model, less community help
- Limited stock sometimes
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Its standout feature is resolution: temperature and humidity readings are extremely fine-grained. The wide voltage range supports 2.0V to 5.5V, and low power draw suits battery projects. Fast transmission minimizes latency during data logging.
Being a newer model, online tutorials may be fewer than for DHT sensors. Stock can be limited compared to mass-produced options. However, the precision and modern design justify these minor downsides for advanced users.
Choose this module if you need top-tier accuracy and battery efficiency. It is perfect for scientific-grade Arduino projects or advanced environmental stations where every decimal point matters.
Ultra High Resolution
With 0.01°C resolution, the AHT30 detects minute environmental changes that other sensors might miss entirely.
Power Efficient
Low power consumption extends battery life, making it ideal for remote or mobile monitoring installations.
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4. HiLetgo DHT22/AM2302 2pcs – Improved Accuracy
HiLetgo DHT22/AM2302 2pcs
Voltage: 3.3-5V
Humidity Range: 0-100% RH
Temperature Range: -40 to 80°C
Interface: Single bus
The HiLetgo DHT22/AM2302 offers improved accuracy over the DHT11 with a 4.4-star rating. It covers a wider temperature range of -40 to 80°C, making it suitable for outdoor or industrial indoor environments where conditions vary.
Pros
- Wider temperature range
- Better accuracy than DHT11
- Includes fixing screw holes
- Two modules included
- Reliable performance
Cons
- Single-wire timing sensitive
- Higher cost than DHT11
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Key strengths include ±2% RH accuracy and robust construction with screw holes for mounting. The digital single-bus output works with standard libraries. Two modules are included for dual monitoring points or backups.
The main trade-off is timing sensitivity in the single-wire protocol, which can cause read errors if not handled carefully. The cost is higher than DHT11 but justified by better specs. Mounting holes add practical value.
Ideal for users needing better range and accuracy without moving to I2C. This module balances cost and performance well for home automation or general environmental monitoring projects.
Extended Range
Temperature range from -40°C to 80°C allows use in diverse climates and industrial settings effectively.
Mounting Ready
Included screw holes make physical installation secure and straightforward without extra brackets.
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5. Teyleten DHT11 5pcs – Reliable Bulk Kit
Teyleten DHT11 5pcs
Voltage: 3.3-5V
Humidity Range: 20-95% RH
Temperature Range: 0-50°C
Interface: Digital output
The Teyleten DHT11 5pcs pack delivers five lightweight modules ideal for bulk needs and educational setups. Rated 4.4 stars, it offers standard digital output and wide voltage compatibility, ensuring it works with most common development boards.
Pros
- Five units provided
- Lightweight design
- Standard digital output
- Compatible with Raspberry Pi
- Good stability
Cons
- Basic humidity range
- Accuracy limited to ±5%
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Strengths include its lightweight design and straightforward wiring. The single-wire digital output minimizes components needed. It is well-suited for classrooms or workshops requiring multiple working sensors for different stations.
Humidity range is limited to 20-95% RH, which excludes extreme environments. Accuracy remains ±5%, so avoid critical precision tasks. However, for general indoor use, it provides reliable and stable readings over time.
Buy this if you need several working units at a low cost. It is a dependable choice for group projects or prototyping where quantity matters more than precision.
Lightweight Design
Each sensor weighs only about 8 grams, making them easy to mount in compact or portable setups.
Cross Platform
Compatible with both Arduino and Raspberry Pi platforms for flexible project architectures.
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6. DHT22 AM2302 2pcs – Compact and Stable
DHT22 AM2302 2pcs
Voltage: 3.3-5V
Humidity Range: 0-100% RH
Temperature Range: -40 to 80°C
Interface: Single bus
The DHT22 AM2302 module boasts a high 4.6 rating for stable performance and quick response times. Its compact 28mm design includes a 15mm connecting wire, making it easy to integrate into tight spaces or control panels.
Pros
- High 4.6 rating
- Stable performance
- Quick response times
- Compact size
- Includes connecting wire
Cons
- Wire may be short
- Slightly larger than others
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Strengths include ±2% RH accuracy and wide temperature range. The single-bus digital output simplifies code requirements. Two units are provided for redundant monitoring or dual-zone setups in the same environment.
The 15mm wire can be shorter than custom leads, limiting placement flexibility. Physical dimensions are slightly larger than DHT11. However, stability and reliability outweigh these for indoor home appliance integration.
Choose this module for reliable home control or weather station builds. It offers excellent balance of size, accuracy, and durability for consistent daily monitoring applications.
Quick Response
Rapid response times ensure real-time data updates for responsive automation systems.
Compact Build
Small footprint allows installation in enclosed or space-constrained electronic housings.
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7. Teyleten DHT22 3pcs – Multi-Unit Set
Teyleten DHT22 3pcs
Voltage: 3.3-5.5V
Humidity Range: 0-100% RH
Temperature Range: -40 to 80°C
Interface: Serial data
The Teyleten DHT22 3pcs kit offers three units with bidirectional serial data support. While it has a lower 3.9 rating, it remains useful for DIY enthusiasts needing multiple sensors at a low cost per unit.
Pros
- Three units included
- Wide operating voltage
- Bidirectional serial port
- Low cost per unit
- Suitable for DIY
Cons
- Lower 3.9 rating
- Quality varies between batches
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Strengths include a wide voltage range up to 5.5V and full 0-100% RH measurement. Three units allow multi-location monitoring. Serial data allows flexible communication handling within Arduino code.
User ratings suggest quality inconsistency between batches, meaning some units may perform better than others. Ensure you test all three before deploying. For experimental setups, the value is still compelling.
Buy this if you need several DHT22 sensors for large projects. It is a practical choice for prototyping where some variance is acceptable.
Wide Voltage
Operating up to 5.5V ensures compatibility with varied power sources and board types.
Bulk Value
Three modules provide excellent value for projects requiring distributed sensor networks.
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8. 10-Pack DHT11 Module – Bulk Classroom Pack
10-Pack DHT11 Module
Voltage: 3.3-5.5V
Humidity Range: 20-90% RH
Temperature Range: 0-50°C
Interface: Single-wire
The 10-Pack DHT11 Module offers ten units plus cables for classrooms or workshops. Rated 4.6 stars, it emphasizes long-term stability and includes comprehensive support resources for installation and troubleshooting.
Pros
- Ten units included
- Includes cables
- Excellent long-term stability
- High rating
- Support included
Cons
- Basic DHT11 limitations
- Higher upfront cost
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Strengths include ready-to-use setup with onboard resistors. It simplifies connections to microcontroller ports. The bulk pack ensures students have individual components for simultaneous learning.
The DHT11 sensor still has basic ±5% accuracy. However, for education, it provides reliable results at low cost per unit. The stability rating ensures consistency over long periods.
Ideal for bulk educational purchases or large-scale experiments. It balances quantity with reliable performance for group learning scenarios.
Support Resources
Comprehensive documentation and customer support simplify setup and troubleshooting for beginners.
Stability
Engineered for minimal drift, ensuring consistent calibration over time.
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9. 4Pcs DHT22/AM2302 – Compact and Reliable
4Pcs DHT22/AM2302
Voltage: 3-5.5V
Humidity Range: 0-100% RH
Temperature Range: -40 to 80°C
Interface: Single bus
The 4Pcs DHT22/AM2302 module includes four compact units with strong anti-interference capabilities. Rated 4.0, it offers bidirectional serial data and lightweight construction, suitable for multi-sensor networks.
Pros
- Four units included
- Lightweight design
- Strong anti-interference
- Bidirectional serial data
- Stable performance
Cons
- Higher than average cons
- Some user issues
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Strengths include stable performance and low weight for flexible mounting. The bidirectional data allows detailed command handling. Four units cover multiple monitoring zones efficiently.
User feedback suggests occasional quality issues, contributing to lower ratings. Some modules may require calibration checks. However, for general DIY needs, they remain functional and reliable.
Buy this for multi-point monitoring without excessive cost. Ensure individual testing before full deployment to verify consistency.
Anti-Interference
Strong anti-interference design ensures stable readings even in noisy electromagnetic environments.
Multi-Zone Ready
Four units enable simultaneous monitoring across different areas or rooms.
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10. HiLetgo DHT22/AM2302 2pcs – Standard Choice
Teyleten DHT22 3pcs
Voltage: 3.3-5V
Humidity Range: 0-100% RH
Temperature Range: -40 to 80°C
Interface: Single bus
The HiLetgo DHT22/AM2302 standard module is a classic choice for DIY electronic practice. Rated 4.4, it offers standard DHT22 specs including fixing holes and easy integration into Arduino projects.
Pros
- Standard DHT22 specs
- Includes fixing holes
- Easy integration
- Good accuracy
- Widely supported
Cons
- Standard single-wire issues
- Moderate speed
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Strengths include compatibility with most libraries and accurate humidity measurements. Two units are included for basic redundancy. Its widespread adoption ensures ample online support.
Single-wire communication can be slow and timing-sensitive. Speed is moderate compared to I2C. However, for basic DIY needs, its simplicity and reliability are hard to beat.
Ideal for hobbyists following standard Arduino tutorials. It provides a proven path for learning environmental monitoring without complexity.
Widely Supported
Extensive online community support and libraries simplify troubleshooting and code implementation.
Standard Specs
Familiar specifications make it easy to swap into existing projects seamlessly.
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Buying Guide – How to Choose the Best Arduino Humidity Sensor
Selecting the right humidity sensor depends on your project needs, budget, and desired accuracy. Below are key factors to evaluate before purchasing.
Sensor Type and Communication
Choose between single-bus digital (like DHT11/DHT22) and I2C (like SHT31/AHT30). Single-bus is simpler but limits multi-device setups. I2C supports multiple devices and offers higher resolution, but requires compatible libraries and wiring.
For multi-sensor projects, prefer I2C interfaces like SHT31 or AHT30.
Accuracy and Resolution
Basic DHT11 offers ±5% RH accuracy, while DHT22 and SHT31 provide ±2% RH. For precise environmental control, aim for SHT31 or AHT30 which have higher resolution (0.01°C temperature readings).
Prioritize higher accuracy if your project involves critical climate control.
Voltage Compatibility
Ensure the sensor operates at your microcontroller voltage. DHT11/DHT22 work on 3.3V-5V. SHT31 and AHT30 support wider ranges (2.4V-5.5V), ideal for mixed-voltage boards like ESP32 or Arduino Pro Mini.
Check board voltage to avoid logic level mismatches.
Temperature Range
DHT11 ranges from 0°C to 50°C, while DHT22 covers -40°C to 80°C. For outdoor or industrial environments, select sensors with extended temperature ranges.
Match temperature specs to your project's operating environment.
Package Size and Mounting
Some kits include fixing screw holes (like DHT22), aiding secure mounting. Others are compact and lightweight for portable projects. Check dimensions against your enclosure constraints.
Select packages with mounting options for stable long-term installations.
Number of Units
Kits vary from 2 to 10 units. Buying in bulk saves cost per sensor for classrooms or distributed networks. Ensure your budget aligns with quantity needs.
Buy in multiples if monitoring multiple zones simultaneously.
Community Support and Documentation
Popular sensors like DHT11 and DHT22 have extensive libraries and online tutorials. Newer models like AHT30 may have fewer resources. Check if example code exists for your platform.
Opt for sensors with strong community support to reduce development time.
Budget and Value
Basic DHT11 packs offer the lowest cost per unit but lower accuracy. Premium I2C modules cost more but deliver better performance. Balance cost against required precision.
Evaluate total project cost including wiring and enclosures.
How to Use and Care for Your Arduino Humidity Sensor
Start by connecting VCC to your microcontroller's 5V or 3.3V pin, GND to ground, and DATA to a digital input pin. For I2C models, connect SDA and SCL to the appropriate bus pins. Ensure power supply stability to avoid reading errors.
Install the appropriate library in your Arduino IDE (like Adafruit_DHT for DHT sensors) and run example code to verify readings. Calibrate if necessary by comparing against a reference hygrometer for your environment.
Protect the sensor from direct water exposure or extreme temperatures to maintain accuracy. Periodically check for dust accumulation on the sensing element. Store unused units in dry conditions to prevent long-term drift.
Frequently Asked Questions
What is the difference between DHT11 and DHT22?
DHT11 is cheaper with lower accuracy (±5% RH) and limited temperature range (0-50°C). DHT22 offers better accuracy (±2% RH) and wider temperature range (-40 to 80°C), making it better for precise projects.
Can I connect multiple sensors to one Arduino?
Yes, using separate digital pins for DHT models, but wiring becomes complex. For multiple sensors, prefer I2C models like SHT31 or AHT30, which share SDA/SCL lines and support many devices.
Why are my humidity readings unstable?
Unstable readings often come from insufficient power, loose wiring, or high interference. Ensure stable voltage, proper grounding, and a pull-up resistor. Use averaging in code to smooth fluctuations.
Do these sensors work with ESP32 or ESP8266?
Yes, both DHT and I2C models are compatible. Ensure voltage levels match (3.3V logic). Use appropriate libraries and check compatibility with ESP cores for seamless integration.
How long do Arduino humidity sensors last?
Most last 3-5 years under normal indoor conditions. Accuracy may drift over time due to environmental exposure. Regular calibration ensures continued reliability.
What library should I use for DHT11 and DHT22?
The Adafruit_DHT library is the most popular and reliable option for Arduino IDE. It supports both models and simplifies code, requiring minimal setup for basic readings.
Final Thoughts on Choosing the Best Arduino Humidity Sensor
The Teyleten Robot SHT31-D Module leads as the best overall choice for its superior accuracy and versatility. For budget-conscious buyers, the HiLetgo DHT11 5pcs Pack provides excellent value and ease of use.
Prioritize I2C interfaces if your project requires multiple sensors or higher resolution. Consider voltage compatibility and temperature range carefully to match your environment.
Prices and stock change frequently, so verify current listings before buying. Use this guide to make an informed decision and start building your environmental monitoring project today.