Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Interface | I2C (IIC) |
| Operating Voltage | 1.7V to 5.5V |
| Temperature Range | -40°C to +125°C |
| Humidity Range | 0% to 100% RH |
| Temperature Accuracy | ±0.2°C typical |
| Humidity Accuracy | ±1.8% RH typical |
| Response Time | 1 second (63%) |
| Package Type | DFN-8 Breakout Board |
| Compatibility | Replace SHT20, SHT30, SHT35 |
| Application | HVAC, IoT, Weather Stations |
Anonymous
Mar 27, 2026
Rating: 5/5
Reliable for greenhouse monitoring
Been running three of these in my automated greenhouse for two months. They handle the high humidity conditions perfectly without drifting. The breakout board makes wiring very easy.
Anonymous
Mar 25, 2026
Rating: 4/5
Solid performance, good value
Does exactly what it says. The precision is great for home automation. Would prefer if it came with header pins pre-soldered, but that's a minor inconvenience.
Anonymous
Mar 24, 2026
Rating: 5/5
Bulk order success
Bought 20 units for a student workshop. Every single one worked out of the box. Consistent quality and great documentation support made the integration smooth for beginners.
Anonymous
Mar 23, 2026
Rating: 5/5
Fast response time
Impressed by how quickly this reacts to changes in temperature compared to my old DHT22 sensors. Essential for applications requiring real-time data logging.
Anonymous
Mar 10, 2026
Rating: 5/5
Perfect upgrade from SHT30
Switched my weather station project from SHT30 to this SHT40 module. The accuracy is noticeably better, and the I2C communication is rock solid with my ESP32. Highly recommended for serious hobbyists.
Anonymous
Mar 05, 2026
Rating: 4/5
Great sensor, minor pin labeling issue
The sensor performance is excellent and matches the datasheet specs. Only giving 4 stars because the silk screen on the VCC pin was slightly faint on my unit, but once identified, it works flawlessly.
Q: What is the difference between this and the SHT30?
A: The SHT40 offers improved long-term stability and slightly better accuracy in extreme temperatures compared to the SHT30. It also features a new heater function for condensation management.
Q: Is this module compatible with Arduino Uno?
A: Yes, the SHT40 module uses a standard I2C interface and operates at 3.3V or 5V, making it fully compatible with Arduino Uno. You just need to connect the SDA and SCL pins.
Q: Does this come with a library for Raspberry Pi?
A: We do not provide a proprietary library, but the SHT40 is supported by popular community libraries like Adafruit_CircuitPython_SHT4x and Sensirion's official GitHub repositories for Python.
Q: Can I use this outdoors without an enclosure?
A: While the sensor chip is robust, the breakout board itself is not waterproof. We strongly recommend using a breathable enclosure or IP65 housing to protect the electronics from direct rain and dust.
Q: What is the maximum cable length for the I2C connection?
A: For reliable I2C communication, keep the cable length under 30cm (12 inches). If you need longer distances, consider using an I2C extender or buffer chip to maintain signal integrity.
Toplip Automatic Retractable Air Hose Reel, Water Drum, High-Pressure Foam Drum for Pneumatic Tools and Auto Repair
$118.00
500L Yogurt Production Line - Stand-Up Pouch Filling Machine with Complete Dairy Processing Equipment and Fermentation Tank
$13,720.00
5A Grade Uruguay Natural Deep Purple Amethyst Loose Beads DIY Crystal Accessories Amethyst Loose Round Beads Semi-Finished
$1.20
Car Vacuum Cleaner - High Suction, Compact, Silent, and High-Power
$68.89
Fifty Seven-Character Quatrains in Wang Xizhi's Running Script Calligraphy
$67.00
Food-Grade Square Retainer Storage Case for Orthodontic Aligners and Dentures
$6.72
365-Day Electric Guitarist Training Plan by Toshiro Miyako – Rock Electric Guitar Chinese Tutorial
$53.00
Portable Invisible Aligner Case - Compact Breathable Box for Orthodontic Retainers, Dentures, and Cleaning Storage
$18.80
Makeup Room Shelf Triangle Bathroom Corner Storage Rack No-Drill Wall-Mounted Vanity Organizer
$23.82
Stainless Steel Sink Organizer for Sponges and Steel Wool - Drill-Free Dishwashing Pad Rack with Drainage
$9.50
Monet Detail Watercolor Brush Set - Goat Hair Liner, Round Wolf Hair, Flat Oil Painting and Gouache Brushes
$76.00
365-Day Electric Guitarist Development Plan Beginner Introductory Electric Guitar Textbook Self-Study Tutorial Basic Skills Practice
$28.90
Over-Toilet Storage Rack for Bathroom - Multi-Functional No-Drill Organizer
$14.70
Wuxi 3D Five-Axis CNC High-Pressure Waterjet Cutting Machine for Metal, Glass, and Stone Inlay Patterns
$431,980.00
Zodiac Dragon & Snake Rattle Toy for Babies, Sheepskin Drum Head, Solid Wood, Non-Toxic, Chewable, Sensory Grasping Toy for 6+ Months
$14.80
Menghu Custom Plush Squeaky Keychain with Custom Voice - DIY Anime Comic Fabric Mini Pillow Charm
$12.80
Hell Jazz Drumming: Ultimate Drum Skill Training Institute - Complete Rock Drum Kit Manual and Tutorial for Drummers
$58.00
Custom Calligraphy Felt Mat for Chinese Painting and Brush Writing – Wool Felt Desk Pad or Wall Mat for Four Treasures of the Study
$9,022.00
Mini Watercolor Paint Notebook – Compact, Portable, Thickened Sketchbook for Markers, Ideal for Students and Casual Drawing
$7.58
Manufacturer Sales 35-Piece Automotive Repair Tool Set, 1/2" Pneumatic Socket Set, Extended Impact Sockets
$165.00
Portable Invisible Aligner Case for Invisalign and Children's Orthodontic Retainers
$12.50
Paper Blending Stumps Set for Art Highlighting and Sketching, Professional Smudging Tools for Fine Arts Students
$2.65
Sketch Blending Stump and Knife Set - Art Supplies Including Paper Stumps, Makeup Sponges, Highlight Detail Tools, Charcoal Wipers, and Scraper Kit
$4.08
New Children's Potty Training Seat for Boys and Girls
$28.00
FRP Spray Purification Tower for Thermal Power Plant Exhaust Gas Treatment - Desulfurization, Denitrification, Acid Mist Scrubber, FRP Chimney
$680.00
Handmade Natural Gourd Cute Smiley Face Rattle Baby Soothing Toy Safe for Chewing No Paint
$32.30
Baby Wooden Rattle Toy - Chewable Traditional Goat Skin Shaker for Newborn Boys and Girls
$9.80
Yuanhengtong Whiteness Meter WSB-1/2Y/3Y/CY, Digital Whiteness Tester for Paper, Flour, Paint, Plastic, Ceramics, and Textiles
$1,055.80
G460 Fast-Drying Glue for Plastics Bonds PP PVC ABS PC PS Strong Low-Whitening Transparent Instant Adhesive
$38.80
Children's Drawing Board Blackboard Whiteboard Accessories Colorful Whiteboard Markers Chalk Set Magnetic Stickers Toys Letters Numbers Eraser
$3.00
![[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)
