WWZMDiB 5 Pcs DS18B20 Temperature Sensor Probe
4.4Editor score
Waterproof stainless steel
Includes resistors
Wide temperature range
In this guide
Selecting the right Arduino temperature sensor is crucial for reliable data in your projects. Whether you need humidity tracking or waterproof probes, the correct module ensures accuracy and longevity in various environments.
We evaluated ten popular modules based on precision, voltage range, communication protocol, and ease of integration. Each product was analyzed for its suitability in common DIY and industrial monitoring scenarios.
Each pick highlights key strengths and ideal use cases to help you decide quickly. Note that availability and stock levels vary, so check current listings for the latest updates before ordering.
Top 3 Picks for Best Arduino Temperature Sensor
HiLetgo 5pcs DHT11 Temperature Humidity Sensor Module
4.5Editor score
Single-wire digital output
Integrated bypass capacitor
Wide voltage support
Teyleten Robot SHT31-D SHT31 Temperature Humidity Sensor Module
4.7Editor score
High precision I2C
Fast sampling rate
Low power consumption
Top 10 Best Arduino Temperature Sensor in 2026 Compared
The following table provides a side-by-side comparison of all ten reviewed sensors. It highlights core specifications such as communication type, measurement ranges, and key features to help you compare options quickly.
ProductsSpecificationsEditor scorePrice
Editor's Choice
HiLetgo 5pcs DHT11
Single-wire digital
20-90% RH
0-50°C range
3.3V-5V
4.5Editor score
Editor's Choice
AHT30 High Precision
I2C communication
-40~85°C range
0~100% RH
0.3°C accuracy
5.0Editor score
Best Premium
Teyleten Robot SHT31
I2C output
-40~125°C
0~100% RH
Wide voltage
4.7Editor score
Gikfun 1M DS18B20
Waterproof probe
-55~125°C
Adapter module
3.3V-5V
4.4Editor score
WWZMDiB DS18B20
Waterproof stainless
-55~125°C
Includes resistors
High accuracy
4.4Editor score
HiLetgo 2pcs DHT11
Single-wire digital
20-95% RH
0-50°C range
3.3V-5V
4.3Editor score
DROK 2 Pack DS18B20
Stainless steel
-55~125°C
Jumper wires
±0.5°C
4.9Editor score
Gikfun 5PCS 1M DS18B20
Waterproof probe
100cm length
-55~125°C
3.0V-5.5V
4.5Editor score
HiLetgo 2pcs DHT22
AM2302 chip
-40 to 80°C
0~100% RH
±0.5°C accuracy
4.4Editor score
HiLetgo 5pcs DS18B20
Waterproof stainless
1M cable
-55~125°C
3.0V-5.5V
4.5Editor score
1. HiLetgo 5pcs DHT11 – Best Overall Arduino Temperature Sensor
HiLetgo 5pcs DHT11 Temperature Humidity Sensor Module
Single-wire digital
20-95% RH
0-50°C range
3.3V-5V
The HiLetgo 5pcs DHT11 stands out as a reliable choice for beginners and hobbyists. With a 4.5-star rating, it delivers consistent performance for basic projects.
Pros
- Integrated bypass capacitor
- Simple protocol
- 5-pack value
- Easy integration
- Stable readings
Cons
- Limited temperature range
- Slower sampling rate
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Its single-wire protocol simplifies coding and wiring. The onboard bypass capacitor ensures stable operation even with long wires.
The sensor is limited to 0-50°C, which is fine for room monitoring. The 5-pack offers excellent value for testing multiple setups.
This module is ideal for weather stations and home automation. It balances cost, ease of use, and reliability effectively.
Simple Communication Protocol
The DHT11 uses a single-wire digital signal, reducing wiring complexity and programming effort significantly.
Onboard Stability Features
A built-in bypass capacitor and pull-up resistor stabilize the signal, making it reliable for beginners.
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2. 2pcs AHT30 High Precision – Best I2C Humidity Sensor
2pcs AHT30 High Precision Digital Temperature and Humidity Sensor
I2C communication
-40~85°C range
0~100% RH
±0.3°C accuracy
The AHT30 module boasts a perfect 5.0 rating for its high precision and robust design. It is a strong alternative to older DHT series sensors.
Pros
- High accuracy
- Wide range
- I2C interface
- Low power
- Fast transmission
Cons
- Requires I2C wiring
- Limited stock
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It offers excellent accuracy with ±0.3°C temperature and ±2%RH humidity. The I2C interface supports multiple devices on one bus.
The wide voltage range and low power consumption make it suitable for battery-powered projects. Users appreciate the stable data transmission.
This sensor is perfect for climate control systems. Its precision and communication efficiency make it a top pick for advanced users.
Precision Measurement
The sensor provides temperature accuracy of ±0.3°C and humidity accuracy of ±2%RH for reliable data collection.
I2C Flexibility
Supporting I2C output allows simultaneous access to multiple devices on the same bus line.
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3. Teyleten Robot SHT31 – Best Premium High Precision Sensor
Teyleten Robot SHT31-D SHT31 Temperature Humidity Sensor Module
I2C output
-40~125°C
0~100% RH
±0.3°C accuracy
The Teyleten Robot SHT31 module is engineered for industrial-grade applications. It delivers high precision with a wide operating voltage range.
Pros
- Wide voltage range
- High accuracy
- Fast response
- Low power
- Long-term stability
Cons
- Higher cost
- Requires pull-up resistors
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It maintains accuracy within ±0.3°C across a broad temperature range. The I2C output ensures fast data rates for real-time monitoring.
Its low power consumption is ideal for long-term deployments. Users benefit from the robust design and reliable performance over time.
This module is best suited for professional projects. It offers superior stability and accuracy for critical monitoring needs.
Robust Voltage Range
Operating from 2.4V to 5.5V, it handles varying power supplies without issues.
High Accuracy
Temperature accuracy of ±0.3°C ensures precise measurements for sensitive environments.
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4. Gikfun 1M DS18B20 – Best Waterproof Probe Kit
Gikfun 1M DS18B20 Waterproof Digital Temperature Sensor
Waterproof probe
-55~125°C
1M cable
3.3V-5V
The Gikfun DS18B20 kit provides a waterproof probe and adapter module. This setup is ideal for measuring liquid or outdoor temperatures.
Pros
- Waterproof design
- Includes adapter
- Wide range
- Easy plug-in
- Versatile
Cons
- Pull-up resistor needed
- Limited pack size
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The sensor offers a wide range of -55°C to 125°C. The adapter module simplifies connection to microcontrollers like Arduino.
Its waterproof casing allows for direct immersion in water. Users can measure temperatures in tanks or greenhouses safely.
This kit is great for environmental monitoring. The included adapter and robust cable make it a practical choice for DIY.
Waterproof Protection
The probe is waterproof, making it suitable for wet or harsh environments.
Adapter Module
A pluggable adapter module with pull-up resistor allows direct microcontroller connection.
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5. WWZMDiB DS18B20 – Best Value 5-Pack
WWZMDiB 5 Pcs DS18B20 Temperature Sensor Probe
Waterproof stainless
-55~125°C
Includes resistors
High accuracy
The WWZMDiB pack offers five waterproof sensors with resistors. It is a cost-effective solution for multi-point monitoring projects.
Pros
- Stainless steel casing
- Includes resistors
- Wide range
- Accurate readings
- Compatible
Cons
- Cable length varies
- No adapter module
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Each probe is encased in stainless steel for durability. The included 4.7K resistors simplify setup and reduce component hunting.
The sensors measure from -55°C to 125°C with high accuracy. They work well with Arduino, Raspberry Pi, and ESP32 boards.
This pack is excellent for distributed sensor networks. Its value and included parts make it a smart buy for larger projects.
Included Resistors
Each probe comes with a 4.7K resistor to ensure proper bus communication.
Stainless Steel
The stainless steel casing ensures resistance to corrosion and physical damage.
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6. 2pcs DHT11 – Best Starter Kit
2pcs DHT11 Temperature Humidity Sensor Module
Single-wire digital
20-95% RH
0-50°C range
3.3V-5V
This DHT11 module set provides two units with wires. It is designed for those who need plug-and-play simplicity.
Pros
- Pre-assembled
- Includes wires
- Low cost
- Simple wiring
- High stability
Cons
- Lower accuracy
- Limited range
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The pre-assembled module reduces soldering needs. With a dedicated microcontroller inside, it ensures reliable long-term stability.
The single-wire scheme makes integration very easy. It is perfect for basic humidity and temperature monitoring tasks.
Ideal for beginners, this kit simplifies the learning process. It removes barriers to entry for new electronics enthusiasts.
Pre-assembled Module
The sensor comes as a complete module, eliminating the need for additional soldering.
Simple Communication
Its single-wire protocol greatly reduces the programming effort required for setup.
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7. DROK 2 Pack DS18B20 – Best Budget Waterproof Kit
DROK 2 Pack Waterproof DS18B20 Temperature Sensor Probes
Stainless steel
-55~125°C
Jumper wires
±0.5°C
The DROK kit includes probes, adapter boards, jumper wires, and resistors. It is the most complete kit for waterproof sensing.
Pros
- Full kit included
- Stainless steel
- High accuracy
- Fast data
- Flexible voltage
Cons
- Only 2 packs
- Long wires may tangle
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Its stainless steel probe ensures durability in harsh conditions. The accuracy of ±0.5°C is excellent for general monitoring.
The kit includes everything needed for immediate testing. Users avoid extra costs by getting jumpers and resistors included.
This kit is best for budget-conscious users. It provides high-quality components without requiring separate purchases for wires.
Complete Kit
Includes adapter boards, jumper wires, and resistors for immediate deployment.
Durable Design
The stainless steel probe resists corrosion and withstands continuous submersion.
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8. Gikfun 5PCS DS18B20 – Best Multi-Sensor Pack
Gikfun 5PCS 1M DS18B20 Temperature Sensor
Waterproof probe
100cm length
-55~125°C
3.0V-5.5V
This pack offers five waterproof probes with 1-meter cables. It allows distributed temperature monitoring without running multiple wires.
Pros
- 5-pack value
- 1M cable
- Waterproof
- Wide range
- Unique interface
Cons
- No resistors included
- Basic packaging
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The long cable simplifies installation in large enclosures. The waterproof probe withstands submersion and harsh industrial environments.
Users benefit from the unique single-bus interface for easy wiring. It is a reliable choice for extensive monitoring systems.
This pack is best for large projects. The extra length and unit count make it a practical option for many setups.
1M Cable
Each probe includes a 1-meter cable, reducing wiring complexity in large systems.
Single-Bus Interface
It uses a unique single-bus interface for easy wiring and connection.
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9. HiLetgo 2pcs DHT22 – Best Humidity Accuracy
HiLetgo 2pcs DHT22/AM2302 Digital Temperature and Humidity Sensor
AM2302 chip
-40 to 80°C
0~100% RH
±0.5°C accuracy
The HiLetgo DHT22 module offers improved accuracy over the DHT11. It provides precise measurements for both temperature and humidity.
Pros
- Higher accuracy
- Full humidity range
- Wide temperature
- Fixed mounting
- Stable output
Cons
- Slower speed
- 2-pack limited
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With ±0.5°C temperature accuracy and full 0-100% RH range, it is superior for detailed monitoring. The chip ensures high reliability.
The module includes a screw hole for secure mounting. Its digital output simplifies integration with most microcontrollers.
This module is best for precision needs. It strikes a balance between cost and performance for serious hobbyists.
AM2302 Chip
The AM2302 chip ensures high sensitivity and stable digital output for accurate data.
Fixing Hole
It features a fixing screw hole for convenient installation and secure mounting.
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10. HiLetgo 5pcs DS18B20 – Best Industrial 5-Pack
HiLetgo 5pcs DS18B20 Temperature Sensor
Waterproof stainless
1M cable
-55~125°C
3.0V-5.5V
The HiLetgo DS18B20 pack provides five waterproof stainless steel probes. It is a durable choice for industrial and outdoor use.
Pros
- Stainless package
- 1M cable
- 5-pack quantity
- Wide range
- Reliable
Cons
- No adapter
- Resistors needed
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Each probe offers a wide temperature range and reliable readings. The stainless steel package resists corrosion and physical damage.
The 1-meter cables allow flexible placement. It is ideal for monitoring multiple points in a factory or garden.
This pack is best for large-scale monitoring. It offers durability and quantity without compromising on measurement quality.
Stainless Steel Package
The probe is encased in waterproof stainless steel for resistance to corrosion.
1M Cable
The 1-meter cable allows for flexible placement away from the controller.
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Buying Guide – How to Choose the Best Arduino Temperature Sensor
Choosing the right sensor requires understanding your specific application needs. This section outlines the key factors to consider before purchasing a module.
Communication Protocol
Sensors communicate via single-wire, I2C, or SPI. Single-wire (like DS18B20) uses fewer pins but requires resistors. I2C (like SHT31) allows multiple devices on two lines. Select based on your microcontroller's pin availability.
Always check pin requirements before deciding.
Measurement Range
Different sensors cover different ranges. DHT11 is 0-50°C, while DS18B20 is -55-125°C. Ensure the range matches your environment to avoid damage or inaccurate readings.
Match the range to your environment.
Accuracy Requirements
Accuracy varies from ±2°C to ±0.3°C. High-precision sensors like SHT31 cost more but deliver reliable data. For general purposes, DHT11 or DS18B20 usually suffice.
Balance precision with project needs.
Environmental Protection
If measuring liquids or outdoors, choose waterproof or IP-rated sensors. Stainless steel probes resist corrosion. Indoor modules like DHT22 are not waterproof.
Choose waterproof models for wet environments.
Voltage Compatibility
Ensure the sensor supports your board's voltage. Most work on 3.3V or 5V. Some wide-voltage models operate on 2.4V to 5.5V for flexibility.
Verify voltage requirements to prevent damage.
Response Time
Some sensors respond quickly while others lag. Fast response is vital for feedback loops like thermostats. DHT sensors are slower than SHT series.
Check response time for real-time needs.
Power Consumption
Battery-powered projects need low-power sensors. I2C and DS18B20 are efficient. DHT modules consume more power during updates.
Prioritize low power for portable systems.
Ease of Use
Consider how easy the module is to wire. Pre-assembled boards with pull-up resistors are easier to use than bare chips.
Look for modules with onboard components.
How to Use and Care for Your Arduino Temperature Sensor
Connect the sensor wires to the correct pins on your board. Ensure power connections are secure to avoid signal noise or damage.
Install the appropriate library in your IDE. Most modules require specific libraries to initialize communication and decode raw data effectively.
Calibrate your sensor if high precision is needed. Compare readings with a reference thermometer and adjust the code output accordingly.
Frequently Asked Questions
What is the difference between DHT11 and DHT22?
The DHT22 offers higher accuracy and a wider temperature range than the DHT11. It is better for precision needs, while the DHT11 is suitable for basic room monitoring.
Do I need a resistor for DS18B20?
Yes, a 4.7K pull-up resistor is required on the data line for stable communication. Some adapter boards include this resistor to simplify setup.
Can I connect multiple sensors to one Arduino?
Yes, you can connect multiple sensors like DS18B20 to a single data pin using unique addresses. I2C sensors also allow multiple devices on the same bus.
Are these sensors waterproof?
DS18B20 probes come in waterproof stainless steel versions. DHT modules are not waterproof and should only be used in dry environments.
What library do I need for Arduino?
Use the DHT or DHTlib library for DHT sensors. For DS18B20, the OneWire and DallasTemperature libraries are standard for reading data.
Which sensor is best for high temperatures?
The DS18B20 sensor supports up to 125°C, making it suitable for higher temperature environments compared to DHT11.
How do I mount these sensors?
Use zip ties or screw holes if available. Ensure the sensor element is exposed to air or liquid without obstruction for accurate readings.
Do these sensors require calibration?
They are factory calibrated, but for high accuracy, you may adjust readings in code based on a reference thermometer.
Final Thoughts on Choosing the Best Arduino Temperature Sensor
The DHT11 and DS18B20 remain top choices for hobbyists due to cost and versatility. The SHT31 and AHT30 offer superior precision for demanding applications.
Prioritize waterproofing and accuracy if you are monitoring liquids or industrial environments. Choose I2C for systems requiring multiple sensors on limited pins.
Check current availability and verify stock before ordering. Prices and models may change, so consult the latest product listings for the best deals.