HiLetgo 5pcs DHT11 Temperature Humidity Sensor Module
4.5Editor score
Affordable five pack value
Simple single wire design
Digital output signal
In this guide
Choosing the right Arduino temperature sensor is crucial for reliable data in any electronics project. Whether you are monitoring a greenhouse or building a smart home device accuracy accuracy matters.
We compared ten top rated sensors based on precision, voltage compatibility, and ease of integration. Each option offers unique strengths for different budget levels and technical requirements.
Every pick highlights key specs and real world performance traits to help you decide quickly. Please note that product prices and availability can change at any time on retailer sites.
Top 3 Picks for Best Arduino Temperature Sensor
Teyleten Robot SHT31-D SHT31 Temperature Humidity Sensor Module
4.7Editor score
Wide voltage range support
High precision readings
I2C interface output
DROK 2 Pack Waterproof DS18B20 Temperature Sensor Probes
4.9Editor score
Stainless steel waterproof probe
Wide temperature range
Integrated pull-up resistor
Top 10 Best Arduino Temperature Sensor in 2026 Compared
This side by side comparison helps you visualize the key differences between each sensor option quickly. We highlight critical specs like voltage range and accuracy to streamline your selection process.
ProductsSpecificationsEditor scorePrice
Best Budget
HiLetgo 5pcs DHT11
3.3V to 5V supply
0 to 50C range
Single wire digital output
Humidity measure included
4.5Editor score
Editor's Choice
2pcs AHT30 High Precision
2.0V to 5.5V supply
-40 to 85C range
I2C communication protocol
0.3C accuracy level
5.0Editor score
Editor's Choice
Teyleten Robot SHT31-D
2.4V to 5.5V supply
-40 to 125C range
I2C interface output
0.3C accuracy level
4.7Editor score
Gikfun 1M DS18B20
3.3V to 5VDC supply
-55 to 125C range
Waterproof probe included
Adapter module included
4.4Editor score
WWZMDiB 5 Pcs DS18B20
3V to 5.25V supply
-55 to 125C range
Waterproof for wet use
Resistors included in pack
4.4Editor score
2pcs DHT11 Temperature
3.3V to 5V supply
0 to 50C range
Single wire wiring scheme
Digital signal output
4.3Editor score
DROK 2 Pack Waterproof
3.0V to 5.5V supply
-55 to 125C range
Stainless steel probe
Adapter board included
4.9Editor score
Gikfun 5PCS 1M DS18B20
3.0V to 5.5V supply
-55 to 125C range
100cm cable length
Single bus interface
4.5Editor score
HiLetgo 2pcs DHT22
Single bus digital signal
-40 to 80C range
0.5C accuracy level
Humidity measure included
4.4Editor score
HiLetgo 5pcs DS18B20
3.0V to 5.5V supply
-55 to 125C range
1M cable length
Waterproof stainless steel
4.5Editor score
1. Teyleten Robot SHT31-D – Best Overall Arduino Temperature Sensor
Teyleten Robot SHT31-D SHT31 Temperature Humidity Sensor Module
Wide voltage operating range
I2C interface protocol
High accuracy measurement
Humidity included reading
This sensor module offers outstanding precision for serious Arduino projects. With a rating of 4.7 stars it stands out for reliability.
Pros
- Excellent accuracy level
- Wide temperature range
- Stable I2C communication
- Compatible with many boards
Cons
- Higher price than basic sensors
- Requires I2C wiring knowledge
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The SHT31 chip provides accurate readings across a broad temperature span. It supports voltages from 2.4V to 5.5V making it flexible.
While slightly more expensive it delivers long term stability that cheaper sensors lack. This is ideal for permanent installations.
Buy this if you need precise data for climate control or scientific use. It is a top choice for robust applications.
Superior Accuracy for Critical Data
The ±0.3°C accuracy ensures your readings are reliable for sensitive tasks.
Versatile Power Options
Wide voltage support allows direct connection to various microcontrollers without regulators.
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2. HiLetgo 5pcs DHT11 – Best Budget Arduino Temperature Sensor
HiLetgo 5pcs DHT11 Temperature Humidity Sensor Module
Single wire digital signal
3.3V to 5V power
0 to 50C range
Five pack included
This five pack is perfect for hobbyists needing multiple units. It rates well for value and simplicity in wiring.
Pros
- Very affordable price point
- Easy single wire setup
- Humidity data available
- Includes spare units
Cons
- Limited temperature range
- Lower accuracy than premium
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The DHT11 sensor uses a simple protocol reducing coding effort. It works with 3.3V to 5V systems easily.
Accuracy is moderate but sufficient for general home projects. The limited range may not suit extreme conditions.
Choose this for basic monitoring tasks where cost is a priority. It is excellent for beginners learning sensors.
Simple One Wire Integration
The single bus digital signal reduces wiring complexity significantly.
Humidity and Temperature Combined
Get both environmental metrics from one compact module.
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3. DROK 2 Pack Waterproof – Best Premium Arduino Temperature Sensor
DROK 2 Pack Waterproof DS18B20 Temperature Sensor Probes
Waterproof stainless steel probe
1-Wire interface support
Wide temperature range
Adapter board included
This set delivers professional grade performance for demanding environments. The 4.9 rating reflects its durability and precision.
Pros
- High accuracy rating
- Fully waterproof design
- Includes all accessories
- Easy to connect
Cons
- Only two probes provided
- Slightly complex setup
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The stainless steel probe resists corrosion and handles submersion. It offers a wide range from -55C to 125C.
While it includes all needed wires resistors the wiring requires care. It is best for outdoor or industrial monitoring.
Invest in this for projects needing rugged durability. It excels in harsh conditions where other sensors fail.
Corrosion Resistant Build
Sealed stainless steel ensures long life in wet environments.
Complete Kit Package
Adapter boards and wires mean no extra purchases needed.
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4. 2pcs AHT30 High Precision – Best Mid Range Arduino Temperature Sensor
2pcs AHT30 High Precision
I2C communication support
Wide voltage range
High precision readings
Four wire connection
This upgraded module boasts a perfect 5.0 rating for quality. It uses I2C for efficient data transfer.
Pros
- Top rated performance
- Stable transmission speed
- Humidity included
- Easy to integrate
Cons
- Four wire setup needed
- Requires I2C library
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Accuracy reaches ±0.3°C which is impressive for this price point. It supports low power usage in battery projects.
The four wire test line connection is straightforward but uses more pins. It is an excellent balance of cost and quality.
Select this for projects needing high accuracy without premium pricing. It suits many IoT applications well.
Fast I2C Data Transfer
Simultaneous access to multiple devices simplifies complex setups.
Low Power Design
Efficient voltage usage helps extend battery life.
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5. Gikfun 1M DS18B20 – Best Value Arduino Temperature Sensor
Gikfun 1M DS18B20
1 meter cable length
Waterproof digital probe
Adapter module included
Wide temperature span
These probes offer great value with three complete sets. The 1M cable allows distant placement of sensors.
Pros
- Three sets included
- Long cable reach
- Plug and play design
- Stable readings
Cons
- Limited to 85C lead temp
- Requires external resistor
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They work well in tanks and greenhouses due to waterproofing. The adapter module simplifies connections to controllers.
Note that lead wire max temp is lower than sensor range. This limits use near high heat sources.
Perfect for environmental monitoring where distance matters. It is a reliable choice for DIY projects.
Extended Reach Capability
The 1 meter lead allows remote placement in tanks or gardens.
Robust Adapter Board
Plug in connection makes setup fast for beginners.
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6. WWZMDiB 5 Pcs DS18B20 – Best Bulk Arduino Temperature Sensor
WWZMDiB 5 Pcs DS18B20
Five probes included
Resistors in pack
Waterproof housing
High accuracy specs
A solid bulk pack for multi point monitoring. It includes resistors which simplifies wiring for some.
Pros
- Five pack quantity
- Resistors provided
- Wide operating range
- High accuracy
Cons
- No adapter boards
- Wiring may be complex
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These probes handle wet environments without damage. The accuracy is high for typical industrial needs.
Lack of adapters means you must solder or crimp wires. This adds time for new users.
Choose this for large scale projects needing many points. It offers great quantity at a fair price.
Resistor Included for Easy Setup
Included 4.7K resistors ensure stable data bus operation.
Underwater Capable Design
Sealed housing prevents moisture damage during use.
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7. 2pcs DHT11 Temperature – Simple Arduino Temperature Sensor
2pcs DHT11 Temperature
Single wire scheme
Digital output form
Humidity included
Stable long term
This pack delivers classic DHT11 simplicity. It uses dedicated modules to ensure reliability in data.
Pros
- Simple wiring
- Reliable stability
- Digital signal
- Low cost
Cons
- Limited accuracy
- Basic range
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The resistive element and microcontroller make readings easy to read. Programming effort is minimal for this sensor.
Accuracy is decent for rooms but not precise instruments. It serves well for basic feedback loops.
Use for entry level DIY electronics. It is a standard choice for learning basics.
Reliable Digital Output
Calibrated digital signal reduces noise in your readings.
Compact Module Design
Small size allows fitting into tight spaces.
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8. Gikfun 5PCS 1M DS18B20 – Reliable Arduino Temperature Sensor
Gikfun 5PCS 1M DS18B20
Five packs included
100cm cable length
Wide supply voltage
Single bus interface
Another strong option offering five probes. The 100cm cable provides great flexibility in placement.
Pros
- Five units included
- Long cable length
- Stainless steel probe
- Durable build
Cons
- Requires external pullup
- Basic packaging
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It uses a single bus interface for clean wiring. The voltage range is wide for many boards.
Tip to use a 4.7K resistor for stability. This is a standard practice for 1-Wire devices.
Ideal for projects needing multiple remote sensors. It is cost effective for bulk needs.
Long Cable for Remote Access
1 meter length allows mounting probes far from controller.
Unique Single Bus
One wire handles both power and data efficiently.
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9. HiLetgo 2pcs DHT22 – Accurate Arduino Temperature Sensor
HiLetgo 2pcs DHT22
Single bus signal
High sensitivity chip
Humidity accuracy
Temperature accuracy
This module offers improved accuracy over standard DHT11. It uses a high sensitive AM2302 chip for precision.
Pros
- Higher accuracy than DHT11
- Wider temperature range
- Fixing screw holes
- Bidirectional data
Cons
- Two pack only
- More expensive than DHT11
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Temperature range extends to -40C which is useful for cold places. Fixing screw holes make mounting secure and easy.
It replaces older sensors like SHT11 with better performance. The bidirectional data stream is efficient.
Choose this when DHT11 is not accurate enough. It is a great upgrade for precise monitoring.
Wide Temperature Range
Operates from -40 to 80 degrees Celsius reliably.
Secure Mounting Options
Includes screw holes for fixed installation.
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10. HiLetgo 5pcs DS18B20 – Affordable Bulk Arduino Temperature Sensor
HiLetgo 5pcs DS18B20
Five sensors included
Stainless steel package
1M cable length
Wide voltage range
A straightforward bulk option with five units. Stainless steel ensures durability for outdoor use.
Pros
- Five pack value
- Waterproof design
- Wide voltage support
- High temp range
Cons
- Basic wire leads
- Resistor not included
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The 1M cable allows flexible sensor placement. Voltage from 3.0V to 5.5V fits many setups.
No resistors included so you must source them separately. It is a budget choice for basic needs.
Use for DIY projects needing many sensors. It provides reliable data at low cost.
Stainless Steel Durability
Waterproof package resists rust and corrosion.
Standard Voltage Support
Fits 3.3V and 5V systems easily.
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Buying Guide – How to Choose the Best Arduino Temperature Sensor
Selecting the right sensor depends on your project needs and environment. This guide breaks down key factors to simplify your choice.
Accuracy Requirements
Precision matters most when monitoring sensitive processes like brewing or labs. Look for sensors with ±0.5°C or better if possible.
For general home automation ±2°C is often sufficient and saves costs.
Temperature Range
Ensure the sensor covers your expected environment from extreme cold to heat. Some only work in room temp while others handle -55C to 125C.
Check the probe limits as wiring might have lower tolerances than the core sensor.
Voltage Compatibility
Match sensor voltage to your microcontroller. Many work on 3.3V to 5V but some require specific levels for stability.
Wide voltage ranges allow flexible use across different boards without extra regulators.
Communication Protocol
Single wire protocols like 1-Wire save pins but can be slower. I2C offers faster transfer and supports multiple devices easily.
Choose based on your pin availability and speed needs for data logging.
Waterproof Rating
Use waterproof probes if placing sensors in liquid or humid areas. Stainless steel housings resist corrosion better than plastic.
Standard modules often lack sealing and should stay dry indoors.
Humidity Measurement
If you need both temp and humidity combine two functions in one unit. It saves space but may reduce accuracy.
Separate sensors offer better performance but require more wiring and pins.
Ease of Integration
Modules with breakout boards and jumper wires simplify setup. Protectors help when learning or testing quickly.
Raw probes may need soldering which adds complexity for beginners.
Cost Efficiency
Bulk packs often lower per unit cost significantly. Calculate total cost including resistors or adapters before buying.
Sometimes a cheaper sensor saves more than its quality difference in budget projects.
How to Use and Care for Your Arduino Temperature Sensor
Connect the sensor pins to your Arduino matching VCC GND and data lines correctly. Use a multimeter to verify connections before powering on.
Install libraries like DallasTemperature or DHT to read data in code. Test readings against a known thermometer to confirm accuracy.
Keep sensors away from heat sources and direct sunlight to avoid false readings. Clean probes gently with water if used in dirty environments.
Frequently Asked Questions
Which Arduino temperature sensor is easiest for beginners?
The DHT11 is ideal for new users because it needs only one data wire. It comes with simple libraries that work out of the box. You can also get jumper wires included to simplify setup. This reduces time spent on debugging before your first read.
Can I use these sensors underwater?
Only waterproof DS18B20 probes are safe for underwater use. Modules like DHT11 are not sealed and will break if submerged. Check the package for waterproof labels before putting any sensor in water.
What resistor do I need for DS18B20 sensors?
You need a 4.7K ohm resistor between data and VCC lines. This ensures stable communication on the 1-Wire bus. Some kits include it but raw probes often do not. It is cheap and essential for reliability.
Do I need a separate sensor for humidity?
Not necessarily since many models combine temp and humidity in one. DHT11 and DHT22 measure both accurately enough for most needs. If you need higher precision consider separate specialized humidity sensors. But combined ones save space and wiring.
What is the difference between DHT11 and DHT22?
DHT22 offers better accuracy and a wider temperature range than DHT11. It costs slightly more but gives more reliable data. Use DHT11 for simple room checks and DHT22 for more demanding tasks. DHT22 also measures wider humidity ranges.
How many sensors can I connect to one Arduino?
DS18B20 sensors can share one pin allowing dozens per board. DHT sensors usually need separate pins each for communication. I2C sensors like SHT31 can share pins if they support multiple addresses. Plan wiring based on your total sensor count.
Why are my sensor readings unstable?
Unstable readings often come from missing pullup resistors on data lines. Ensure wires are short and power is stable. Check libraries are up to date and configured right. Noise or low battery can also cause drift in data.
Can I use these with Raspberry Pi?
Yes all these sensors work with Raspberry Pi GPIO pins. You may need level shifters if using 5V sensors on 3.3V boards. Libraries exist for Python to read data easily. Just match wiring correctly for best performance.
Final Thoughts on Choosing the Best Arduino Temperature Sensor
The SHT31 stands out for precision while the DHT11 offers unbeatable budget value. Each sensor serves different needs depending on your project scope.
Prioritize accuracy and waterproofing if working in tough environments. Simple models suffice for indoor hobby tasks where cost matters most.
Always check current stock and pricing before buying as they fluctuate often. Pick the one that matches your specific voltage and data needs.