Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Brand | ASAIR |
| Model Number | DHT30 |
| Communication Interface | I²C (Inter-Integrated Circuit) |
| Operating Temperature Range | -40°C to +80°C |
| Humidity Measurement Range | 0% to 100% RH |
| Accuracy (Humidity) | ±2% RH (typical) |
| Accuracy (Temperature) | ±0.2°C (typical) |
| Supply Voltage | 2.4V to 5.5V DC |
| Package Type | DFN-8 Surface Mount Module |
| Application Grade | Industrial & Indoor Environmental Monitoring |
Anonymous
Mar 27, 2026
Rating: 5/5
Consistent performance in server rooms
Deployed twenty of these modules in our server room monitoring system. Zero failures so far after three months. The low power consumption is also a nice bonus for our battery-backed units.
Anonymous
Mar 26, 2026
Rating: 4/5
Great sensor, needs pull-up resistors
The sensor works flawlessly once you add the appropriate external pull-up resistors to the SDA and SCL lines. Documentation could be slightly clearer on this, but standard I²C practices apply. Very accurate data.
Anonymous
Mar 24, 2026
Rating: 5/5
Reliable upgrade from DHT22
Switched my weather station project from DHT22 to DHT30. The difference in update speed and accuracy is noticeable immediately. The industrial grade build quality gives me confidence for long-term deployment.
Anonymous
Mar 16, 2026
Rating: 5/5
Perfect for indoor agriculture monitoring
We use these sensors across our vertical farm setup. They handle the high humidity environments without drifting. The compact size made it easy to fit them into our existing enclosures.
Anonymous
Mar 15, 2026
Rating: 4/5
Good value for industrial specs
Solid sensor for the price point. It handles condensation events well and recovers quickly. Only giving 4 stars because the breakout board I bought separately had weak soldering, but the sensor module itself is top-notch.
Anonymous
Mar 01, 2026
Rating: 5/5
Excellent precision for HVAC projects
I integrated the DHT30 into a custom HVAC control board. The I²C communication is stable, and the readings are consistent with our calibrated lab equipment. Much better response time than the older DHT22 models.
Q: Is this sensor compatible with Arduino Uno?
A: Yes, the DHT30 is fully compatible with Arduino Uno. You will need to connect the VCC, GND, SDA, and SCL pins and use an I²C library such as the official ASAIR driver or a generic I²C humidity library.
Q: How often should the sensor be recalibrated?
A: The DHT30 is factory-calibrated and typically maintains accuracy for years under normal operating conditions. For critical industrial applications, we suggest an annual verification against a reference standard.
Q: What is the maximum cable length recommended for I²C connection?
A: For reliable I²C communication at standard speeds (100kHz), we recommend keeping cable lengths under 30cm. For longer distances, consider using an I²C buffer or extender chip to maintain signal integrity.
Q: Can this sensor operate at 3.3V logic levels?
A: Absolutely. The DHT30 supports a supply voltage range of 2.4V to 5.5V, making it directly compatible with both 3.3V and 5V microcontroller logic systems without needing a level shifter.
Q: Does this module come with a protective filter cap?
A: The standard DHT30 module does not include a removable filter cap by default, but the sensing element has a built-in protective layer against dust. Optional IP67 housing accessories can be purchased separately for harsh environments.
Original Car Tires - Used Passenger Van Tires in Sizes 175/185/195/205 R13/R14/R15/R16/R17
$59.00
BeeNesting Waterproof Bag, Wet/Dry Separation, Large Capacity Storage for Swimming, Beach, Camping, Travel, Outdoor 12+20L
$33.10
Custom Acrylic UV Printed Advertising Signs - Office Door Plates, ID Tags, Number Plaques, and Small Signboards
$1.00
Car Tire Stone Removal Tool - Hook Pick for Cleaning Gravel from Vehicle Treads
$4.53
Strawberry Planting Trough PVC 3D with Built-in Drainage Greenhouse Soilless Cultivation Equipment Vertical Growing Rack
$13.60
Baohong Watercolor Sketchbook - Glued on Four Sides, 32K/16K/8K, 200g/300g Cotton Pulp Paper for Postcards, Travel Sketching, and Oil Pastels
$20.00
Kitchen Sink Storage Rack Multi-Function Dish Drying Shelf Over-Sink Organizer Bowl Cabinet
$105.00
Blower Motor Compatible with Corolla, Crown, Camry, Highlander, Crown, Reiz, RAV4, Prado, Land Cruiser
$234.32
Copic Airbrush - Marker Rendering Tool (Cannot Be Used Directly), Model ABS-3, Compatible with Copic Series 1 and 2
$285.00
Beijing Hezhong Dental Implant Service - Includes Implant and Abutment at Central Procurement Prices; Korean Dentium and American Implant Options Available
$1.00
Mini Watercolor Paint Set with Carry Case for Travel Sketching, Journaling, and Students
$5.50
PGYTECH Dandelion SD Card Case for DSLR and Mirrorless Cameras - Portable TF Memory Card, SIM Card, and XD Card Holder
$84.10
UE4 Unreal Engine 5 Indie Friendly Sounds RPG Sounds Pack - Game-Ready Audio Effects
$0.50
G80 Manganese Steel Lifting Chain Rigging with Double or Quadruple Hooks, Lifting Rings, and Crane Hooks
$63.00
Mont Marte Long-Handle Bristle Brush for Acrylic Paint, Art Flat Brush, Oil Painting Brush
$4.00
Stylish Portable Invisible Braces Case for Kids' Orthodontic Retainers and Cleaning
$12.40
Used Car Tires (80-90% New) in Sizes 165, 175, 185, 195, 205, 215, 225 - Code 551456
$65.00
Commercial and Home Dual-Head Stainless Steel Vegetable Slicer for Cafeterias and Restaurants - Direct from Manufacturer (Slices, Dices, Julienne)
$2,142.00
Mountain Ghost Spending Money Cinnabar Coloring Tool Five Emperor Copper Coin Coloring Wood Carving Stone Tablet Taishan Stone Inscription Non-Fading Landscape Buddha Guan Calligraphy Fine Brush Traditional Seal Script Coloring Pen Tracing
$17.60
Wide-Opening Chain Sling Assembly with Hooks - Heavy-Duty Lifting Gear, Iron Chains, and Crane Hoist Hooks
$145.00
Sketch Blending Stump Set for Artists, Detail Highlight and Shadow Smudging Tools, Cotton Swabs, Scraper, and Sponge Pen Refills
$6.80
Mini Watercolor Paint Set with Walnut Wood Board, Portable Easel, and Travel Sketchbook
$4.68
Modern Housewife Kitchen Sink Organizer - Foldable Dish Drying Rack and Storage Shelf
$44.20
Skid-Mounted Integrated Screw Air Compressor for Laser Cutting - 15kW/22kW/37kW, 16kg, Permanent Magnet VFD
$23,500.00
Wooden Handle Leather Rattle Drum Baby Toy Glue-Free Paint-Free for Ages 1+ Boys and Girls Wooden Shaker
$8.42
![[Folded Booklet] Liu Chunlin: Palace Examination Essay Final Zhuangyuan Small Regular Script Calligraphy Copybook Original Size Long Scroll](https://www.gosteppe.com/cache/small/product/269742/legacy-main-81360b2f385dab43c5030767.webp)
[Folded Booklet] Liu Chunlin: Palace Examination Essay Final Zhuangyuan Small Regular Script Calligraphy Copybook Original Size Long Scroll
$14.20
Stainless Steel Sponge Drain Rack - No-Drill Wall-Mounted Kitchen Sink Organizer for Steel Wool and Scrub Pads
$2.60
Analysis of Wang Duo's Classical Poetry Composition Techniques (50 Analyses + 50 Comparisons)
$89.00
Custom Sheet Music Transcription Service for 'Farewell Letter' for Saxophone, Clarinet, Flute, Trumpet, Violin, and Cello
$12.00
Japanese Surplus san-x Rilakkuma Bowl Set - Oven-Safe Bowl with Base and Two Forks for Ice Cream or Hot Pot
$69.90
![[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)
