Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Model Number | DHT22 (AM2302) |
| Interface | Single-Bus Digital |
| Temperature Range | -40°C to +80°C |
| Humidity Range | 0% to 100% RH |
| Temperature Accuracy | ±0.5°C |
| Humidity Accuracy | ±2% RH |
| Operating Voltage | 3.3V to 5.5V DC |
| Sampling Period | 2 Seconds |
| Pin Count | 4 Pins |
| Application | Arduino, Raspberry Pi, IoT Projects |
Anonymous
Mar 16, 2026
Rating: 5/5
Easy to use for beginners
As someone new to electronics, I found this very forgiving. Plenty of tutorials online. The data output is straightforward to parse.
Anonymous
Mar 13, 2026
Rating: 5/5
Reliable and robust
I have bought five of these modules. All of them worked out of the box. The PCB mount makes wiring much cleaner than the bare sensor version.
Anonymous
Mar 13, 2026
Rating: 4/5
Works well in high humidity
Using this in my small greenhouse. It handles the high humidity environment well without drifting too much. Would recommend adding a pull-up resistor if your board doesn't have one.
Anonymous
Mar 11, 2026
Rating: 5/5
Perfect for my weather station project
This sensor works flawlessly with my Arduino Uno. The readings are consistent and match my professional hygrometer closely. Setup was easy using the standard library.
Anonymous
Mar 09, 2026
Rating: 5/5
Superior to DHT11
If you need better precision than the DHT11, this is the upgrade you need. The temperature range is also much wider, suitable for outdoor enclosures.
Anonymous
Mar 04, 2026
Rating: 4/5
Good value, slow sampling rate
Great accuracy for the price point. Just remember it only updates every 2 seconds, so don't expect real-time rapid changes. Perfect for indoor monitoring though.
Q: Does this module come with a pull-up resistor installed?
A: Yes, most breakout boards for the DHT22 include a 10k ohm pull-up resistor between the data and VCC pins, making it ready to use immediately.
Q: Which Arduino library is best suited for this module?
A: The 'DHT sensor library' by Adafruit is the most popular and well-maintained library for interfacing with the DHT22 on Arduino platforms.
Q: What is the maximum cable length recommended for accurate readings?
A: For reliable data transmission, we recommend keeping the cable length under 20 meters. Longer distances may require signal buffering or shielding.
Q: Is this sensor waterproof?
A: No, the DHT22 sensor itself is not waterproof. If you plan to use it outdoors or in wet environments, you must house it in a breathable waterproof enclosure.
Q: Can I connect this directly to a 3.3V microcontroller like ESP8266?
A: Absolutely. The DHT22 operates within a voltage range of 3.3V to 5.5V, so it is fully compatible with 3.3V logic systems without needing a level shifter.
Heavy-Duty Heat-Treated CV Joint Puller Tool - Axle Ball Cage Removal and Installation Device for Automotive Repair
$66.00
Mobile Integrated Waste Transfer Station - 17 Cubic Meters Movable Compression Container
$159,443.00
Antique Glaze White Ceramic Brush Washer Large Brush Washer Water Pot Ink Stone Washing Calligraphy Painting Brush Washing Basin Four Treasures of the Study
$16.80
Authentic Chinese Philosophy Classics: Di Tian Sui, Qiong Tong Bao Jian, San Ming Tong Hui - Annotated & Illustrated Edition
$29.90
Household Disposable Kitchen Sink Garbage Filter Mesh Drain Pool Dishwashing Basin Strainer Vegetable Bowl Leftover Sink
$3.51
Continental Run-Flat Tires: 225/235/245/255/265 45/50/55 R17/R18/R19/R20/R21/R22
$357.00
Foldable Steel Tire Stone Removal Hook - Multi-Tool for Tire Repair, Stone Picking, and Emergency Window Breaking with Storage Bag
$11.70
Integrated Catalytic Combustion Unit RCO Furnace - Exhaust Gas Treatment System with Activated Carbon Adsorption-Desorption and Catalytic Combustion
$231,249.00
Universal Waterproof and Sunproof Cover for E-Bike Charger with Outdoor Storage Box
$11.85
Baohong Paper Brick Watercolor Paper Pad, Medium/Coarse Texture, Square/Round Shapes for Painting, Sketching, and Cotton Pulp Practice
$28.00
Commercial Food Warmer Cabinet for Pies, Youtiao, Burgers, Egg Tarts, and Fried Chicken, Heating and Temperature-Controlled Display Case
$977.00
Masking Tape Spray Paint Shielding Paper for Art Students and Sketching - Non-bleeding, Residue-free, Hand-tearable, Shoe-safe
$1.00
Electric Scooter and Motorcycle Hook - Multi-Functional Storage Hanger for Delivery Bikes and Cargo Boxes
$2.50
Huirui 420AB Fast-Drying Glue for Silicone - Bonds ABS, Stainless Steel, TPE, Rubber; High-Strength Instant Adhesive for Difficult Materials
$36.00
Color Proofing Instrument Ink Mixing Tool Sample Making Machine
$1,860.00
Variable Frequency Drive 0.75kW 2.6A Three-Phase 380V
$1,430.00
2026 Spring PEP New Edition Primary English Grade 3 Volume 2 Four-Line Three-Grid Word Cards for Teachers, Open Class Competition Creative Blackboard Design, Teaching Contest Blackboard Strips and Teaching Aids
$11.30
Cold Brew Yogurt Fermentation Equipment - Manual Old-Style Yogurt Processing and Filling Line
$113,050.00
Electric Spray Painting Pen Set for Babies and Toddlers, Non-Toxic Washable Watercolor Markers, Drawing Tool Kit Toy
$49.50
![[Buy 2 Get 10% Off] Painted Double-Layer Wool Felt Mat for Calligraphy and Painting](https://www.gosteppe.com/cache/small/product/270133/legacy-main-a12ad5b62abb27a9a45afaf4.png)
[Buy 2 Get 10% Off] Painted Double-Layer Wool Felt Mat for Calligraphy and Painting
$7.48
Compact Home Range Hood, Portable USB Desktop Smoke Extractor for Living Room Hot Pot and BBQ Odor Removal
$41.00
Office and Home Computer Cable Management Sleeve - Desktop Data Cord Organizer and PC Wire Collector
$6.50
Linear Bearing
$75.47
Thickened Aluminum Alloy Stainless Steel Floor Wire Raceway - Surface-Mounted Cable Cover Protector, Anti-Crush, Self-Adhesive Invisible Design
$2.13
Kids Foam Stamp Brushes - Mushroom-Tipped Painting Set for Kindergarten Art and Graffiti Projects
$2.38
Heisidike HZL-32 Portable Stone Removal Hook for Car Tire Tread Cleaning
$9.28
Bixilage Cheese Processing Equipment – Curd Fermentation Machine for Stretchy Hand-Pulled Cheese Production Line
$67,900.00
Essential Oil Soap Stamping Machine DIY Stamp Maker Semi-Auto Pneumatic Stampler Small Handmade Soap Equipment
$2,173.00
Inverted Barrel Water Stand - Simple U-Shaped Thickened Holder for Purified Water Buckets with Dispenser Outlet
$21.00
Qingling Pickup 2.8T Diesel Isuzu 4JB1-T1 Engine Turbocharger Pump Assembly
$1,502.00
![[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)
