Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Interface | I2C |
| Supply Voltage | 1.5V ~ 3.6V DC |
| Temperature Range | -40°C to +125°C |
| Humidity Range | 0% to 100% RH |
| Temperature Accuracy | ±0.3°C (at 25°C) |
| Humidity Accuracy | ±2% RH (20-80% RH) |
| Response Time | 5s (63% RH step) |
| Package Type | DFN-6 Surface Mount |
| Dimensions | 3mm x 3mm x 1.1mm |
| Application | HVAC, Weather Stations, IoT Devices |
Anonymous
Mar 30, 2026
Rating: 5/5
Easy to use for beginners
Found plenty of example code online. Connected it to my ESP32 and had data logging up and running in under an hour.
Anonymous
Mar 21, 2026
Rating: 4/5
Good precision, low power
Power consumption is very low, which is great for battery-operated nodes. Temperature reading is spot on; humidity is within expected tolerance.
Anonymous
Mar 05, 2026
Rating: 5/5
Reliable humidity monitoring
I used these in a custom controller for my greenhouse. They handle high humidity environments well without drifting significantly over time.
Anonymous
Mar 04, 2026
Rating: 4/5
Great value, small footprint
The DFN package is tiny, so soldering requires a steady hand or a hot air station. Once mounted, performance is solid for the price point.
Anonymous
Mar 04, 2026
Rating: 5/5
Perfect for my weather station project
These sensors are incredibly accurate and easy to interface with an Arduino using the I2C library. The readings stabilize quickly and match my calibrated reference meter.
Anonymous
Mar 01, 2026
Rating: 5/5
Consistent performance
Bought a batch of ten for a distributed sensing network. All units performed consistently out of the box with minimal calibration needed.
Q: Is this sensor suitable for outdoor use?
A: The sensor itself is not waterproof. If used outdoors, it must be housed in a breathable enclosure that protects against rain and direct sunlight while allowing air flow.
Q: What is the I2C address for this sensor?
A: The default I2C address for the HTU21D/HTU20D is typically 0x40. Please refer to the datasheet for details on changing this if supported by your specific variant.
Q: How long does it take to get a new reading?
A: The conversion time depends on the resolution setting. At highest resolution, it takes approximately 50ms for temperature and 16ms for humidity measurements.
Q: Can I use this with a 5V Arduino Uno directly?
A: No, the operating voltage is 1.5V to 3.6V. You must use a logic level shifter or run your microcontroller at 3.3V to avoid damaging the sensor.
Q: Does this module come with pull-up resistors for the I2C lines?
A: This is the bare sensor module. While some breakout boards include pull-up resistors, this specific item typically requires you to add external 4.7kΩ pull-up resistors to your SDA and SCL lines.
![[Damai Holds Micro-Needle Hair Transplant Patent] Female Hairline | Non-Shaven Transplant 1000 Units | Forehead](https://www.gosteppe.com/cache/small/product/269231/legacy-main-b004541637d9aaa9d8c19288.webp)
[Damai Holds Micro-Needle Hair Transplant Patent] Female Hairline | Non-Shaven Transplant 1000 Units | Forehead
$17,000.00
Air Baffle for ABB ACS550-X2 R8 IP21 VFD
$3,450.00
Outdoor Waterproof Shockproof EDC Storage Box, Sealed Gear Case for Small Items
$5.10
Zhizhi Lin Zexu Small Regular Script Diamond Character Card Kaishu Copybook Porcelain Blue Gold Characters Brush Calligraphy Practice Folding Card
$68.00
Maotaizi Dual-Tip Dual-Color Glitter Markers for Kids - Non-Toxic Soft Tip Colored Pens for Elementary Art
$16.90
Tire Removal Socket Wrench and Spare Tire Tool Kit for Zhengzhou Nissan Paladin, Aoting, and Dongfeng Ruiqi Pickup Trucks
$16.90
Zhimo Ke Xingkai Technique Calligraphy Copybook - Upgraded Edition with Text, Images, and Video Tutorials for Beginners
$30.60
Small-Scale Yogurt Processing Production Line, Blended Yogurt Fermentation Equipment, Organic Milk Filling Machine
$115,920.00
Compact Manual Hot Stamping Machine for Logos, Business Cards, Leather Wallets, Plastic, and Wood - Heat Embossing and Branding Tool
$500.76
DIY Handmade Soap Mold – Single Square Silicone Mold for Homemade Soap
$1.96
Wall-Mounted Facial Towel Dispenser Transparent Upside-Down Design
$4.50
Colorful Ground Thread Inserts 16ER/IR1.0/2.0/3.0/3.5 ISO AG55/60 for High-Hardness Quenched Steel
$19.80
Jiuzheng Tongming Submerged Solenoid Pulse Valve TMF-Y-25/40/50/62/76S, Dust Removal Pulse Blowing Valve
$150.00
Large Water Bucket Stand – Storage Rack for Office Purified Water Dispensers and Mineral Water Containers
$282.56
Double Loop Chain Lifting Sling, Manganese Steel Double-End Ring Hoisting Chain, G80 Manganese Steel Lifting Rigging 1/2/3/5T
$98.00
Hesdige JG-376 Portable Stone Removal Hook - Multi-Function Tool for Cleaning Gravel from Car Tire Treads
$16.91
Used 90% Condition Removed Car Tires 165 175 185 195 205 215 225 235/50 55 60 65 R13 14 15 16 17
$68.00
Blower Assembly AC Motor Fan for Changan CS75, Raeton CC, Oshan A800, and CS35 - Original Equipment
$427.73
Professional Sketch Blending Knife - Gray Tone Sponge Blender for Details and Highlights - Art Exam Tool
$2.90
Yuanzhi Water Bucket Rack 3/4/5 Tier Single Row with Board V-Shaped Water/Paper Cup Pure Mineral Water Bucket Storage Stand
$143.00
Rubber Wheel Chock 460x180x160 Anti-Slip Triangular Wedge
$354.33
Household Small Range Hood Portable USB Desktop Smoke Extractor for Living Room Hot Pot BBQ Odor Removal Mini Fume Extractor
$39.00
Household Water Dispenser Stand - Multi-Tier Floor Rack for Bottled Pure Water and Mineral Water in Offices
$129.74
WYPALL* Microfiber Cleaning Cloths Yellow 83610, 6 Sheets/Pack * 4 Packs/Case
$132.76
Ceramic Ink Dish, Water Dish, Brush Rest, Ice-Crack Ink Box, Multi-Function Brush Washer, Ink Stone, Brush Holder, and Kung Fu Tea Cup
$1.90
Car Tire Stone Removal Hook, Foldable and Extendable Tool for Extracting Pebbles from Treads
$2.07
Touchscreen Waterproof Phone Pouch for Swimming and Rafting, Sealed Bag for Beach, Sand, Snorkeling, and Underwater Photography
$5.53
Chunfei Grocery Store Yunan GR02 Gravel Bike, Thru-Axle, Mechanical Disc Brakes, Lightweight Touring Setup with Multiple Rack Mounts
$6,441.00
Electric Guitar Tutorial for Beginners - 7-Week Self-Study Plan with Exercises, Corrections, and Materials
$219.00
Professional Bathtub-Style Brush Washing Set - Cute 3-Piece Watercolor and Chinese Painting Brush Cleaner with Palette
$11.80
![[Youxin Electronics] GP2Y0E03 Infrared Distance Sensor Module 4-50cm Range](https://www.gosteppe.com/cache/medium/product/74667/legacy-main-4da8cadc5fc82afe91b124e3.webp)
![[Trial Pack] Xianlang Complete Cat Treat Sticks Meal Packs Main Course Cans Freeze-Dried Cat Food Sample Snacks Gift Set](https://www.gosteppe.com/cache/medium/product/208273/legacy-main-9ec245ebf781f65a434ba854.webp)
