HiLetgo 5pcs DHT11
4.5Editor score
Simple single-wire protocol
Includes five modules and wires
Basic humidity and temperature data
In this guide
Selecting the right Arduino temperature sensor is essential for building reliable projects that monitor environmental conditions accurately. Whether you need humidity tracking or waterproof probes, choosing a compatible module saves time and ensures stable readings.
We compared ten popular options based on precision, voltage range, communication protocols, and real-world durability. Each entry was reviewed against common maker use cases to highlight strengths and limitations for beginners and experts alike.
Every pick showcases key specs, pros, cons, and ideal applications to help you decide quickly. Please note that prices and stock fluctuate frequently, so verify availability on the product page before purchasing your next component.
Top 3 Picks for Best Arduino Temperature Sensor
Teyleten Robot SHT31-D SHT31
4.7Editor score
High accuracy ±0.3°C
Wide voltage 2.4 to 5.5V
I2C interface for easy wiring
DROK 2 Pack Waterproof DS18B20
4.9Editor score
Stainless steel waterproof probe
Wide range -55 to 125°C
Includes adapter board and resistors
Top 10 Best Arduino Temperature Sensor in 2026 Compared
This side-by-side comparison highlights the core specifications and features of each sensor to help you choose the best fit for your specific monitoring requirements.
ProductsSpecificationsEditor scorePrice
Best Budget
HiLetgo 5pcs DHT11
Digital single bus signal
Range 0 to 50°C
Humidity 20 to 95 percent
Voltage 3.3 to 5V
4.5Editor score
Editor's Choice
2pcs AHT30 High Precision
I2C IIC communication output
Range -40 to 85°C
Accuracy ±0.3°C temperature
Low power consumption design
5.0Editor score
Editor's Choice
Teyleten Robot SHT31-D SHT31
I2C IIC interface output
Range -40 to 125°C
Accuracy ±0.3°C temperature
Voltage 2.4 to 5.5V
4.7Editor score
Gikfun 1M DS18B20
Waterproof digital thermal probe
Range -55 to 125°C
Includes adapter module included
Voltage 3.3 to 5V
4.4Editor score
WWZMDiB 5 Pcs DS18B20
Waterproof probe for wet use
Range -55 to 125°C
Accuracy ±0.5°C temperature
Voltage 3 to 5.25V
4.4Editor score
2pcs DHT11 Temperature Humidity
Digital signal output module
Range 0 to 50°C
Humidity 20 to 95 percent
Voltage 3.3 to 5V
4.3Editor score
DROK 2 Pack Waterproof DS18B20
Stainless steel waterproof probe
Range -55 to 125°C
Accuracy ±0.5°C temperature
Voltage 3 to 5.5V
4.9Editor score
Gikfun 5PCS 1M DS18B20
Waterproof digital thermal probe
Range -55 to 125°C
Length approximately 100 cm
Voltage 3.0 to 5.5V
4.5Editor score
HiLetgo 2pcs DHT22 AM2302
AM2302 high sensitive chip
Range -40 to 80°C
Accuracy ±0.5°C temperature
Voltage 3.3 to 5V
4.4Editor score
HiLetgo 5pcs DS18B20
Waterproof 1m cable pack
Range -55 to 125°C
Stainless steel package design
Voltage 3.0 to 5.5V
4.5Editor score
1. Teyleten Robot SHT31-D SHT31 – Best Overall Arduino Temperature Sensor
Teyleten Robot SHT31-D SHT31
Accuracy ±0.3°C
Humidity ±2%RH
Range -40 to 125°C
Voltage 2.4 to 5.5V
The Teyleten Robot SHT31-D offers high precision and versatility for Arduino projects. Rated 4.7 stars, it delivers reliable readings across a broad temperature range.
Pros
- Excellent temperature accuracy
- Wide operating voltage
- I2C digital interface
- Includes three modules
Cons
- Requires pull-up resistors
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Its ±0.3°C accuracy ensures precise climate monitoring. The I2C interface simplifies wiring and supports multiple sensors on the same bus for complex setups.
While it needs pull-up resistors for I2C stability, this is standard practice. The wide voltage range allows direct connection to most microcontrollers without extra regulation.
Buy this if you need professional-grade accuracy for indoor or outdoor use. Its robust design makes it ideal for long-term environmental monitoring tasks.
High Accuracy for Critical Projects
The ±0.3°C accuracy ensures your monitoring systems make precise decisions based on real temperature data without drift.
Versatile Voltage Compatibility
Operating from 2.4V to 5.5V lets you connect it directly to 3.3V ESP32 boards or 5V Arduino Uno without adapters.
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2. HiLetgo 5pcs DHT11 – Best Budget Arduino Temperature Sensor
HiLetgo 5pcs DHT11
Single bus digital signal
Range 0 to 50°C
Humidity 20 to 95%
Voltage 3.3 to 5V
The HiLetgo 5pcs DHT11 pack provides an affordable entry into temperature monitoring. Rated 4.5 stars, it suits beginner Arduino projects requiring basic humidity and heat tracking.
Pros
- Includes five modules and wires
- Simple single-wire protocol
- Low cost entry point
Cons
- Limited temperature range
- Basic accuracy levels
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Its single-wire protocol simplifies integration into your code. The included wires and five modules allow quick prototyping without additional purchases for multiple sensor nodes.
Accuracy is lower than premium options with ±2°C error. Temperature range tops at 50°C, which limits use in extreme environments or industrial applications needing broader spans.
Choose this for classroom demos or home hobby kits. The low price point allows experimenting with multiple locations without breaking your component budget.
Simplified Wiring for Beginners
The single-wire protocol means you only need one digital pin to read both temperature and humidity data from the sensor.
Value Pack for Prototyping
Getting five modules in one package lets you deploy sensors in multiple rooms or test locations simultaneously.
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3. DROK 2 Pack Waterproof DS18B20 – Best Premium Arduino Temperature Sensor
DROK 2 Pack Waterproof DS18B20
Stainless steel waterproof probe
Range -55 to 125°C
Accuracy ±0.5°C
Voltage 3.0 to 5.5V
The DROK DS18B20 kit offers industrial-grade waterproofing and precision. Rated 4.9 stars, it stands out for harsh environment monitoring where other sensors might fail.
Pros
- Corrosion-resistant stainless steel
- High accuracy ±0.5°C
- Includes adapter and resistors
Cons
- Requires 4.7K pull-up resistor
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Its stainless steel probe resists rust and corrosion in wet conditions. The ±0.5°C accuracy ensures dependable readings even in demanding temperature monitoring scenarios.
The included adapter board simplifies wiring significantly. Although a pull-up resistor is necessary for stability, the kit provides one to save you from sourcing parts separately.
Invest in this for aquariums, greenhouses, or outdoor weather stations. Its durability justifies the cost when reliability matters for long-term data collection.
Waterproof Durability for Harsh Environments
The stainless steel probe withstands continuous submersion and humid conditions where plastic modules would quickly fail.
Complete Kit for Immediate Use
Adapters and jumper wires included reduce assembly time and ensure you have all parts needed to start measuring right away.
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4. 2pcs AHT30 High Precision – Best Accuracy
2pcs AHT30 High Precision
I2C IIC communication
Range -40 to 85°C
Accuracy ±0.3°C
Low power consumption
The 2pcs AHT30 module delivers precision and reliability with a perfect 5.0 rating. It offers digital output via I2C for streamlined integration.
Pros
- Perfect 5.0 rating
- Precise ±0.3°C temperature
- Upgraded digital module
Cons
- Higher cost than basic options
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Its ±0.3°C accuracy ensures highly stable measurements. The low power design suits battery-powered projects requiring efficient energy usage over time.
While costlier than DHT11, the upgraded performance justifies the price. You gain better resolution and more robust communication for serious environmental data tracking.
Select this for scientific experiments or precise climate control. The accuracy and efficiency make it a superior choice for detailed monitoring tasks.
Perfect Rating for Reliability
A 5.0 user rating indicates consistent satisfaction with performance and ease of integration into Arduino projects.
Upgraded Digital Communication
The I2C interface allows multiple sensors on one bus, saving pins and simplifying wiring for complex setups.
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5. Gikfun 1M DS18B20 – Best Waterproof Option
Gikfun 1M DS18B20
Waterproof digital probe
Range -55 to 125°C
1 meter cable length
Adapter module included
The Gikfun DS18B20 kit provides waterproof protection and convenience. Rated 4.4 stars, it is designed for environments where moisture exposure is expected.
Pros
- Long 1 meter cable
- Includes adapter module
- Wide temperature range
Cons
- Cable limits placement flexibility
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Its 1-meter cable allows remote monitoring from hard-to-reach places. The adapter module with pull-up resistor simplifies connection to your microcontroller directly.
While the fixed cable length restricts positioning, it ensures robust protection. This is ideal for tanks or industrial units where sensors remain stationary.
Use this for fish tanks or machinery monitoring. The waterproof build ensures durability in wet conditions where standard sensors would fail quickly.
Flexible Cable Reach
The 1-meter lead lets you place the probe inside tanks or enclosures while keeping the controller safe outside.
Plug-and-Play Adapter Board
Integrated pull-up resistors on the adapter remove the need for external components to establish stable communication.
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6. WWZMDiB 5 Pcs DS18B20 – Best Value Pack
WWZMDiB 5 Pcs DS18B20
Waterproof probe design
Range -55 to 125°C
Includes 5 resistors
Voltage 3 to 5.25V
The WWZMDiB 5 Pcs pack delivers cost-effective waterproof monitoring. Rated 4.4 stars, it balances durability and affordability for multiple sensor deployments.
Pros
- Five sensors included
- High-accuracy waterproofing
- Includes pull-up resistors
Cons
- Resistors may vary quality
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Its waterproof design protects against moisture. Including five resistors ensures you can wire all units quickly without sourcing extra components separately.
While individual cable lengths vary, the value proposition remains strong. This kit supports large-scale monitoring networks where quantity matters for broad coverage.
Choose this for agricultural or industrial setups. You get multiple robust probes to track temperature across different zones or containers.
Ready-to-Use Resistor Supply
Each probe needs a pull-up resistor; getting five included saves you from buying additional parts for a multi-node setup.
Waterproof Reliability
The probes withstand wet conditions, making them suitable for outdoor use or submerged applications where moisture is common.
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7. 2pcs DHT11 Temperature Humidity – Best Starter Kit
2pcs DHT11 Temperature Humidity
Digital signal output
Range 0 to 50°C
Humidity 20 to 95%
Voltage 3.3 to 5V
The 2pcs DHT11 kit is perfect for quick experiments. Rated 4.3 stars, it offers basic temperature and humidity data for simple Arduino projects.
Pros
- Compact two-pack
- Includes jumper wires
- Low power use
Cons
- Limited range accuracy
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Its compact design saves space on your breadboard. The included wires and low power consumption make it easy to integrate into portable prototypes.
Accuracy is basic with ±2°C and ±5% humidity. However, it is sufficient for general monitoring where exact precision is not critical for operation.
Use this for home hobby learning or school labs. The simplicity allows beginners to focus on coding logic rather than complex sensor calibration.
Compact Breadboard Friendly
Its small footprint fits easily alongside other components without consuming excessive space on your project board.
Simple Communication Protocol
The single-wire digital signal minimizes pin usage, leaving more I/O free for displays or buttons on your controller.
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8. Gikfun 5PCS 1M DS18B20 – Best for Long Reach
Gikfun 5PCS 1M DS18B20
Waterproof probe
Range -55 to 125°C
Approx 100 cm length
Single bus interface
The Gikfun 5PCS DS18B20 kit offers extended reach for distant sensors. Rated 4.5 stars, it supports monitoring in hard-to-access industrial locations.
Pros
- Five long cables
- Waterproof protection
- Wide temperature span
Cons
- Requires external resistor
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Its waterproof protection ensures durability in wet conditions. The 1-meter cable allows flexible placement inside tanks or behind machinery.
Note that an external resistor is needed for stability. Despite this extra step, the reliability makes it ideal for continuous temperature tracking.
Buy this for multi-point monitoring setups. The long cables let you route sensors precisely without stretching wires or risking connection failures.
Extended Cable for Placement
The 100 cm length lets you place sensors deep inside containers where short leads would not reach effectively.
Robust Waterproof Design
Sealed probes handle liquid exposure safely, ensuring longevity when submerged or used in high-humidity industrial environments.
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9. HiLetgo 2pcs DHT22 AM2302 – Best Upgraded Accuracy
HiLetgo 2pcs DHT22 AM2302
AM2302 high sensitivity
Range -40 to 80°C
Accuracy ±0.5°C
Humidity 0 to 100%
The HiLetgo DHT22 module improves upon older DHT11 versions. Rated 4.4 stars, it provides better precision for humidity and temperature data.
Pros
- Better than DHT11
- Higher humidity range
- Precise accuracy specs
Cons
- Wider temp error than SHT
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Its ±0.5°C accuracy supports more reliable readings than cheaper alternatives. The AM2302 chip handles up to 100% humidity effectively.
While still less precise than industrial SHT sensors, it offers a solid middle ground. It is affordable yet robust enough for serious DIY environmental tracking.
Choose this for home automation or gardening. It balances cost with improved performance for projects needing consistent monitoring.
Higher Humidity Coverage
Measuring up to 100% RH ensures you can monitor wet environments without saturation errors.
Better Thermal Accuracy
The ±0.5°C accuracy provides reliable data for climate control systems where temperature stability matters.
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10. HiLetgo 5pcs DS18B20 – Best Stainless Steel Build
HiLetgo 5pcs DS18B20
Stainless steel package
Range -55 to 125°C
1 meter cable
Voltage 3.0 to 5.5V
The HiLetgo DS18B20 stainless steel pack offers durability for harsh uses. Rated 4.5 stars, its robust housing ensures reliability in challenging environments.
Pros
- Corrosion-resistant steel
- Five waterproof probes
- Robust housing
Cons
- Resistor not included
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Its waterproof steel shell resists corrosion effectively. This makes it suitable for submersion in water or exposure to corrosive industrial gases.
Note that resistors must be sourced separately. However, the physical build quality justifies the extra effort for long-term deployment.
Buy this for industrial or outdoor weather stations. The steel casing ensures your sensors survive conditions that would damage standard plastic alternatives.
Corrosion-Resistant Steel Shell
The stainless steel package protects internal electronics from rust and chemical degradation over time.
Submersible Design
Sealed joints allow safe underwater use, making it ideal for monitoring tank levels or industrial fluid systems.
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Buying Guide – How to Choose the Best Arduino Temperature Sensor
Selecting the right sensor depends on your project needs, budget, and environment. This guide outlines key factors to consider before you buy.
Accuracy and Precision
Precision determines how close your readings are to actual values. Industrial projects need ±0.3°C accuracy, while hobbyists might tolerate ±2°C.
Check the datasheet for error margins before buying to avoid inaccurate data affecting your project outcomes.
Communication Protocol
Sensors use digital interfaces like I2C, single-wire, or analog outputs. I2C allows multiple sensors on few pins, while single-wire saves power.
Choose a protocol matching your microcontroller capabilities to simplify coding and wiring complexity.
Operating Voltage Range
Ensure the sensor supports your board's voltage like 3.3V or 5V. Operating outside this range may damage the component or cause unstable readings.
Look for wide voltage ranges to ensure compatibility with ESP32, Arduino Uno, or other platforms.
Temperature and Humidity Range
Verify the sensor covers the expected climate conditions for your use case. Some stop at 50°C, while others reach 125°C for industrial uses.
Select a sensor that exceeds your max expected temperature to ensure longevity and reliability in the field.
Waterproof and Durability
For outdoor or wet environments, choose waterproof probes with stainless steel housing. These prevent moisture from damaging internal electronics.
If your project stays dry, plastic modules may suffice and save money compared to rugged options.
Additional Accessories
Check if kits include resistors, wires, or adapter boards. Buying separately adds cost and complicates assembly for beginners.
Complete kits streamline setup and ensure you have all components needed to start measuring immediately.
Power Consumption
Battery-powered projects require low-power sensors to extend run time. Some sensors stay active only during sampling, saving energy.
Prioritize low consumption models if your project runs on portable power sources without frequent recharging.
Price and Budget
Cost varies by accuracy and features. Basic modules are cheap, but premium options offer better stability and longer life.
Balance your budget with reliability needs to avoid replacing components frequently due to failures or inaccuracies.
How to Use and Care for Your Arduino Temperature Sensor
Connect the sensor power pins to your Arduino or ESP32. Ensure the voltage matches the sensor's requirements to prevent damage.
Use the correct library to read data. Most digital sensors require specific drivers to convert signals into readable temperature values.
Protect outdoor sensors from direct sunlight or condensation. Enclose them in ventilated cases to maintain accurate readings and ensure longevity.
Frequently Asked Questions
What is the most accurate Arduino temperature sensor?
The SHT31 and AHT30 models offer high precision with ±0.3°C accuracy. They are ideal for projects requiring reliable climate monitoring data.
Can I use these sensors outdoors?
Yes, waterproof DS18B20 probes work well outdoors. Ensure they are properly sealed to prevent moisture damage.
Do I need pull-up resistors?
Digital protocols like I2C require pull-up resistors for stable communication. Check if your kit includes them before starting.
Which sensor is best for beginners?
The DHT11 is popular for beginners due to simple wiring and libraries. It balances ease of use with reasonable accuracy.
How do I calibrate my sensor?
Compare readings against a known accurate thermometer. Adjust software offsets if significant discrepancies appear in your environment.
Can multiple sensors share the same bus?
Yes, I2C and 1-Wire support multiple devices on one bus. Assign unique addresses to prevent data conflicts.
Final Thoughts on Choosing the Best Arduino Temperature Sensor
We reviewed ten top Arduino temperature sensors highlighting accuracy, durability, and value. Whether you need budget options or precision industrial probes, there is a fit for your needs.
Prioritize accuracy and waterproofing based on your environment. Higher-end models offer better long-term stability for critical monitoring applications.
Prices and stock fluctuate daily so check availability before purchasing. Verify current specs on the product page to ensure compatibility with your project.