HiLetgo 5pcs DHT11 Temperature Humidity Sensor Module
4.5Editor score
Single-wire wiring scheme
Pre-calibrated digital output
Low cost package
In this guide
Selecting the right sensor is crucial for any embedded system project. You need reliable data to make informed decisions about your environment. Whether you are building a weather station or a thermostat, the right component matters.
We have evaluated ten popular modules based on technical specifications and user feedback. Our analysis covers accuracy, operating ranges, and communication protocols. This ensures you find a part that fits your specific development needs.
Each pick highlights unique strengths like waterproofing or digital output. Please note that pricing and availability can change over time. Always verify current details before finalizing your purchase decision.
Top 3 Picks for Best Arduino Temperature Sensor
Teyleten Robot SHT31-D SHT31 Temperature Humidity Sensor Module
4.7Editor score
Wide operating voltage range
High accuracy readings
I2C interface support
DROK 2 Pack Waterproof DS18B20 Temperature Sensor Probes
4.9Editor score
Stainless steel probe
Wide temperature range
Includes adapter boards
Top 10 Best Arduino Temperature Sensor in 2026 Compared
The following table provides a side-by-side overview of the top ten models available for Arduino integration.
ProductsSpecificationsEditor scorePrice
Best Budget
HiLetgo 5pcs DHT11
0 to 50 degrees Celsius
20% to 95% humidity
Single bus digital signal
3.3 to 5 volts
4.5Editor score
Editor's Choice
2pcs AHT30 High Precision
-40 to 85 degrees Celsius
0 to 100% humidity
I2C communication protocol
Low power consumption design
5.0Editor score
Editor's Choice
Teyleten Robot SHT31-D
-40 to 125 degrees Celsius
0 to 100% humidity
I2C interface output
2.4 to 5.5 volts
4.7Editor score
Gikfun 1M DS18B20 Waterproof
-55 to 125 degrees Celsius
Waterproof probe design
1-Wire interface
3.3 to 5 volts
4.4Editor score
WWZMDiB 5 Pcs DS18B20
-55 to 125 degrees Celsius
High accuracy waterproof
Includes resistors
Wide voltage support
4.4Editor score
2pcs DHT11 Module
0 to 50 degrees Celsius
20% to 95% humidity
Digital output form
3.3 to 5 volts
4.3Editor score
DROK 2 Pack Waterproof
-55 to 125 degrees Celsius
Stainless steel case
Adapter boards included
3.0 to 5.5 volts
4.9Editor score
Gikfun 5PCS 1M DS18B20
-55 to 125 degrees Celsius
100 cm lead length
Unique single bus interface
3.0 to 5.5 volts
4.5Editor score
HiLetgo 2pcs DHT22/AM2302
-40 to 80 degrees Celsius
0 to 100% humidity
AM2302 main chip
Single-bus digital output
4.4Editor score
HiLetgo 5pcs DS18B20
-55 to 125 degrees Celsius
Stainless steel package
1 meter cable length
3.0 to 5.5 volts
4.5Editor score
1. Teyleten Robot SHT31-D SHT31 Temperature Humidity Sensor Module – Best Accuracy and Range
Teyleten Robot SHT31-D SHT31 Temperature Humidity Sensor Module
-40 to 125 degrees Celsius
0 to 100% humidity
I2C interface output
2.4 to 5.5 volts
This module offers excellent accuracy for demanding environmental monitoring tasks. It combines temperature and humidity sensing in a compact digital format. The ratings reflect its reliability in various project applications.
Pros
- High accuracy temperature measurement
- Wide humidity range support
- Stable digital communication
- Wide operating voltage range
- Multiple units in pack
Cons
- Slightly higher cost
- Requires I2C wiring
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The SHT31 chip provides precise readings with minimal drift over time. You benefit from a wide operating range that supports extreme conditions. This makes it suitable for both indoor and outdoor setups.
While the price is higher than basic options, the performance justifies the investment. The I2C interface simplifies wiring compared to single-wire solutions. This reduces clutter on your microcontroller breadboard.
Developers seeking professional grade results should consider this model. It delivers consistent data for critical systems like climate control. Its robust construction ensures long-term stability in active projects.
Precision in Harsh Environments
The wide operating range allows deployment in extreme cold or heat without failure.
Streamlined Digital Communication
I2C protocol reduces pin usage and simplifies code implementation for beginners.
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2. HiLetgo 5pcs DHT11 Temperature Humidity Sensor Module – Best Budget Value
HiLetgo 5pcs DHT11 Temperature Humidity Sensor Module
0 to 50 degrees Celsius
20% to 95% humidity
Single bus digital signal
3.3 to 5 volts
This sensor provides a cost-effective entry point for new developers. The kit includes five modules to support multiple experiments or projects. It is widely supported by libraries and tutorials online.
Pros
- Affordable bulk pack
- Easy single-wire setup
- Pre-calibrated output
- Included jumper wires
- Common component support
Cons
- Limited temperature range
- Lower accuracy than newer models
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Integration is simple due to the single-wire communication scheme. The module comes with a bypass capacitor and pull-up resistor. This reduces the need for external components on your circuit.
Accuracy is sufficient for general hobbyist applications but not for science. The range is limited to indoor environments mostly. However, the low cost offsets these limitations for learning purposes.
It remains a top choice for budget-conscious makers and students. You get reliable basic data without spending much money. The included wires make initial setup faster and easier.
Simple Integration Benefits
On-board components mean fewer external parts are needed for a working circuit.
Bulk Availability for Prototyping
Getting five units allows you to share with friends or test multiple locations.
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3. DROK 2 Pack Waterproof DS18B20 Temperature Sensor Probes – Best Industrial Use
DROK 2 Pack Waterproof DS18B20 Temperature Sensor Probes
-55 to 125 degrees Celsius
Stainless steel case
Adapter boards included
3.0 to 5.5 volts
This package is designed for users needing robust measurement capabilities. The probes are sealed against water and corrosion effectively. You get everything needed to start measuring immediately.
Pros
- Waterproof stainless steel probe
- Complete kit with boards
- Wide temperature range
- High accuracy ±0.5 degrees
- Ready to use wiring
Cons
- Higher price per unit
- Requires soldering for best results
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The stainless steel casing protects the sensor in wet environments. Accuracy is high enough for industrial or agricultural applications. The included adapter boards simplify connection to your controller.
While costlier than basic boards, the durability offers better value. You avoid the risk of sensor failure in harsh conditions. The range supports extreme temperatures found in ovens or freezers.
Professionals and serious hobbyists should choose this for reliability. It stands up to physical stress better than plastic alternatives. The complete kit saves time on sourcing extra parts.
Durability in Wet Conditions
Sealed stainless steel protects the internal electronics from moisture damage.
Comprehensive Kit Features
Adapters and resistors are included to reduce setup complexity significantly.
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4. 2pcs AHT30 High Precision – Best I2C Upgrade
2pcs AHT30 High Precision
-40 to 85 degrees Celsius
0 to 100% humidity
I2C communication protocol
Low power consumption design
This module stands out with flawless user feedback ratings. It upgrades older models with better precision and connectivity. The I2C output simplifies integration with multiple devices.
Pros
- Perfect user ratings
- High accuracy resolution
- I2C interface support
- Low power operation
- Upgraded sensor chip
Cons
- Limited voltage range
- Fewer units in pack
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The sensor chip delivers very high resolution readings. You can detect small changes in environmental conditions reliably. This is ideal for weather stations or climate control projects.
Power consumption is low which helps for battery powered designs. The voltage range adapts easily to common logic levels. However, it offers fewer units than some bulk packs.
Choose this if precision is your top priority for the build. The performance metrics exceed many competitors in this class. Its ease of use makes it friendly for all skill levels.
Superior Resolution for Tracking
Fine-grained output allows you to see minute fluctuations in temperature data.
Power Efficiency
Low current draw extends battery life in remote monitoring installations.
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5. Gikfun 1M DS18B20 Waterproof – Best Standard Probe
Gikfun 1M DS18B20 Waterproof
-55 to 125 degrees Celsius
Waterproof probe design
1-Wire interface
3.3 to 5 volts
This set offers a convenient module and probe combination. The waterproof cable reaches distant monitoring points easily. It simplifies wiring for users needing a complete solution.
Pros
- Plug and play module
- Waterproof cable length
- Wide temperature range
- Three sets included
- Stable thermal sensing
Cons
- Cable length limitation
- Module adds bulk
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You get three distinct sets to cover multiple zones. The wide range supports freezing or boiling temperatures safely. The 1-Wire interface keeps pin usage to a minimum.
The adapter module makes connection simpler than bare probes. It includes the pull-up resistor needed for operation. This reduces the chance of wiring errors during setup.
Select this for general monitoring tasks requiring durability. The balance of features and cost fits most needs well. It provides a solid foundation for DIY temperature projects.
Flexible Installation Options
The one meter lead provides reach to tanks or pipes without stretching.
Simplified Connection
Plug-in modules remove the need for soldering wires to sensor pins.
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6. WWZMDiB 5 Pcs DS18B20 – Best Bulk Value
WWZMDiB 5 Pcs DS18B20
-55 to 125 degrees Celsius
High accuracy waterproof
Includes resistors
Wide voltage support
This option focuses on quantity and value for large projects. You receive five waterproof probes with essential resistors. This allows scaling up sensor coverage without extra purchases.
Pros
- Five probes in pack
- Resistors included
- Waterproof casing
- High accuracy specification
- Affordable price point
Cons
- Basic packaging
- Requires external module
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The probes maintain accuracy across the full temperature range. Waterproofing ensures reliability in moist or submerged areas. The resistors are included to meet bus requirements.
While it lacks a breakout board, wiring is straightforward. The voltage support is wide enough for most boards. You save money by buying in bulk directly.
Large scale deployments benefit from this kit choice. It is ideal for agricultural or industrial sensor arrays. The value proposition is hard to beat for many users.
Scalable Coverage
Multiple units enable monitoring several zones simultaneously with one order.
Essential Components Included
Resistors save you from sourcing separate parts for the bus line.
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7. 2pcs DHT11 Module – Best Entry Level
2pcs DHT11 Module
0 to 50 degrees Celsius
20% to 95% humidity
Digital output form
3.3 to 5 volts
This kit is a standard choice for introductory electronics classes. The module form factor saves time on assembly work. It is compatible with most common microcontroller platforms.
Pros
- Compact module design
- Wired output included
- Compatible with many boards
- Simple protocol
- Low cost
Cons
- Limited range
- Two units only
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The digital output simplifies reading data from the sensor. You get two units to test redundancy or comparison. The wires provided make initial prototyping much easier.
Limitations include a narrow temperature and humidity range. It works best for standard room conditions. However, the simplicity helps users understand sensor basics quickly.
Students and beginners will find this very suitable. It offers the essential features needed to start learning. The included wires remove the frustration of cable management.
Learning Friendly Design
Simple wiring and documentation make it easy to learn from.
Platform Compatibility
Supports Arduino and Raspberry Pi without complex configuration steps.
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8. Gikfun 5PCS 1M DS18B20 – Best Large Kit
Gikfun 5PCS 1M DS18B20
-55 to 125 degrees Celsius
100 cm lead length
Unique single bus interface
3.0 to 5.5 volts
This pack is designed for extensive temperature monitoring. You get five probes with long leads for flexibility. The single bus interface allows multiple sensors on one wire.
Pros
- Five waterproof sensors
- One meter leads
- Single bus interface
- Wide voltage range
- Consistent performance
Cons
- No adapter boards
- Requires resistor planning
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The stainless steel casing provides good protection. Leads reach far into enclosures or tanks without strain. Voltage range is broad to support various power sources.
You will need to source pull-up resistors separately. This adds slight complexity for those wanting plug and play. But the quantity and quality balance out well.
Use this for projects requiring distributed sensing points. It offers great value for multi-location thermal tracking. The consistency across sensors ensures reliable comparisons.
Long Reach Capability
One meter cables allow placement far from the main controller.
Bus Efficiency
Multiple probes on one pin reduce wiring clutter significantly.
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9. HiLetgo 2pcs DHT22/AM2302 – Best High Accuracy DHT
HiLetgo 2pcs DHT22/AM2302
-40 to 80 degrees Celsius
0 to 100% humidity
AM2302 main chip
Single-bus digital output
This module upgrades the standard DHT11 with better specs. The AM2302 chip offers improved accuracy and range. It handles full humidity ranges effectively for better data.
Pros
- AM2302 chip accuracy
- Wide humidity range
- Screw holes for mounting
- High sensitivity
- Replacement for older models
Cons
- Requires external resistor
- Two units only
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The chip sensitivity is high enough for precise tasks. You get two modules with mounting holes for stability. This makes installation secure in fixed applications.
Accuracy is better than basic models but still not lab grade. It works well for weather stations or HVAC checks. The wider range supports colder environments than the standard 11.
Choose this when you need better data than DHT11. The chip provides reliability for serious hobbyist projects. It is a solid middle ground in the DHT family.
Improved Humidity Sensing
Full 0 to 100% range captures all environmental moisture conditions.
Mounting Stability
Screw holes allow permanent installation in enclosures or boxes.
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10. HiLetgo 5pcs DS18B20 – Best Standard Waterproof
HiLetgo 5pcs DS18B20
-55 to 125 degrees Celsius
Stainless steel package
1 meter cable length
3.0 to 5.5 volts
This kit offers a reliable solution for water based monitoring. The stainless steel case protects against rust and corrosion. Five units allow for extensive testing or sharing.
Pros
- Five stainless probes
- One meter cables
- Waterproof protection
- Wide temperature range
- Common standard protocol
Cons
- No adapters included
- Basic packaging
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The long cables facilitate placement away from electronics. It supports the full industry range for temperature. This versatility makes it good for many applications.
You will need to build or buy a breakout board. This step adds time to the initial setup. However the core component quality remains high and consistent.
Ideal for aquarium or heating system monitoring. The waterproofing ensures the sensor survives immersion. You get excellent value for five durable probes in one.
Corrosion Resistance
Stainless steel ensures long life even in chemically active water.
Versatile Application
Suitable for liquid or air temperature measurement with care.
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Buying Guide – How to Choose the Best Arduino Temperature Sensor
Choosing the right sensor depends on your specific project requirements and environment.
Accuracy Requirements
Precision varies significantly between sensor types and models. Professional applications often require accuracy within 0.5 degrees Celsius. Hobbyist projects might accept +/- 2 degrees for general monitoring tasks.
Select a model that matches your precision needs to avoid overpaying.
Operating Range
Temperature ranges differ by component type and design. Some sensors are limited to indoor conditions. Others support extreme heat or cold for industrial use.
Verify the minimum and maximum ratings before purchasing your component.
Communication Protocol
Protocols like I2C and 1-Wire determine wiring complexity. I2C uses two wires and supports multiple devices easily. 1-Wire uses one wire but requires more careful pull-up resistor management.
Choose a protocol that matches your microcontroller pins and skills.
Environmental Durability
Some probes are waterproof while others are not. Look for stainless steel casing if you plan to use the sensor outdoors or in liquids. Plastic housing is fine for dry indoor air only.
Ensure the physical build can withstand your expected exposure conditions.
Voltage Compatibility
Most modules support 3.3V and 5V logic. However some newer chips may have tighter limits. Check the data sheet to ensure it matches your board voltage level.
Matching voltage prevents damage and ensures reliable communication signals.
Package Contents
Some kits include resistors and adapter boards while others do not. Kits with more accessories save you time on wiring. Buying bare probes might be cheaper but requires extra parts.
Decide if you want a ready to use solution or a bare component.
Cost and Quantity
Prices vary based on brand and bundle size. Buying in bulk often reduces the cost per unit. Consider how many sensors you need now versus later.
Balance the initial price against the value of included accessories.
Community Support
Widely used models have more code examples and tutorials online. This simplifies the development process significantly. Check if libraries exist for your specific sensor model.
Opt for popular models to speed up development and debugging.
How to Use and Care for Your Arduino Temperature Sensor
Start by connecting the power pins VCC and GND to your board correctly. Ensure the voltage matches the sensor requirements to prevent damage.
Connect the data pin to a digital input on your microcontroller. For 1-Wire sensors include a 4.7K resistor between data and power.
Keep the sensor away from direct heat sources for accurate reading. Regular cleaning helps maintain long-term stability of the measurements.
Frequently Asked Questions
Which Arduino temperature sensor is the most accurate?
The SHT31 series offers the highest accuracy among digital options. It provides ±0.3°C precision suitable for professional use. For cost effective solutions the AM2302 is also a strong choice.
Can I use waterproof sensors for outdoor weather stations?
Yes waterproof probes are designed for outdoor exposure. They resist rain and corrosion effectively. Ensure you use a protective cover for the electronics though.
Do I need an external resistor for the DS18B20?
Yes a pull-up resistor is required for the 1-Wire bus. Typically a 4.7K resistor connects the data line to VCC. Some adapter boards include this resistor internally for you.
How do I measure humidity as well as temperature?
DHT and SHT sensors measure both values simultaneously. They output digital signals for both parameters. This simplifies your code by requiring only one component.
What is the best sensor for extreme cold?
The DS18B20 series supports temperatures down to -55°C. This makes it ideal for freezer monitoring or cold storage. Most DHT models stop working below freezing temperatures.
Why are there so many resistors needed for some sensors?
Pull-up resistors stabilize the digital signal lines. They ensure the signal returns to a known state when not active. Some boards include them to simplify wiring for users.
How many sensors can connect to one Arduino pin?
1-Wire sensors can chain up to 127 devices on one pin. I2C sensors can connect up to 116 devices on two pins. This allows extensive networks without needing extra pins.
Final Thoughts on Choosing the Best Arduino Temperature Sensor
We have reviewed ten reliable models that cover various needs. The SHT31 leads in precision while DHT11 offers simplicity. Waterproof DS18B20 probes stand out for harsh conditions.
Prioritize accuracy and durability based on your specific use case. Indoor projects can use simpler models to save money. Outdoor or industrial needs require waterproof and robust choices.
Always verify current pricing and availability before buying. Prices fluctuate over time and stock levels change. Choosing the right fit ensures your project runs smoothly.