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.
Front Wiper Arm Assembly for Citroën C-Elysée, Xsara Picasso, Peugeot 307/301
$35.00
Underbite Corrector Case - Portable Magnetic Lanyard Storage Box for Frankel Appliance and TB Palatal Expander
$22.70
Car Tire Stone Removal Tool, Multi-Function Hook for Picking and Extracting Stones from Treads
$6.43
Outdoor Lamp Stand for Camping, Lantern Holder Pole for Street Vending and Night Fishing
$13.89
Waste Removal and Paper Stacking Machine, Automatic Paper Collection and Counting Receiver for Carton Printing Equipment, Carton Factory Machinery
$6,400.00
Sheepskin Baby Rattle - Chewable Traditional Handmade Shaker Bell, Intangible Cultural Heritage Essential for Newborn Care
$57.00
Zhizhi Study Room 'Small Pot Sky' Brush Washer - Traditional Handmade Glass with Lost-Wax Method, Silk Luster, Double-Compartment Water Vessel
$457.00
Zao Boshi Insulated Food Cart - Programmable Banquet Warmer for Buns, Breakfast Items, and Hotel Dry/Wet Dishes
$11,566.00
![Lichuan JK [Blood Oath] - Original Authentic Japanese Dark Style Embroidered Sailor Suit - Spring/Autumn Set](https://www.gosteppe.com/cache/small/product/269363/legacy-main-0b86f0b7795c15ee2c8be0d3.webp)
Lichuan JK [Blood Oath] - Original Authentic Japanese Dark Style Embroidered Sailor Suit - Spring/Autumn Set
$59.00
Sink Storage Rack Stainless Steel No-Drill Kitchen Sponge Steel Wool Cloth Pot Lid Organizer Wall-Mounted Drain Rack
$4.93
Sketch Blending Stump Set for Artists - Detail Highlight and Shadow Smudging Tools with Replacement Tips
$14.80
Softening Agent for Board Arcs Melamine Softener Eco-Friendly Board Paint-Free Board Whole House Customization Arc Softener
$9.30
Car Tire Stone Removal Tool - Hook Picker for Cleaning Pebbles from Vehicle Treads
$3.90
Electrical Box with PLC System and VFD for Fans and Pumps
$2,519.00
Zunjue Watercolor Sketchbook 300g Fabric-Covered Journal – Portable Acrylic Marker Book, 100% Cotton Flip-Style Concertina Drawing Paper
$13.70
French Imported Arches Watercolor Paper, Handmade Cotton Pulp 300g Full/Half/4K/8K/16K/32K Rough/Medium/Fine Grain, 185g Cotton Pulp for Postcards and Watercolor Books
$20.80
![[Official Authentic] Zichao Bear Wanda Cinema Popcorn Acrylic Keychain Plush Doll Cute Toy](https://www.gosteppe.com/cache/small/product/269355/legacy-main-ae40bf0d9a6007e2f30a9130.webp)
[Official Authentic] Zichao Bear Wanda Cinema Popcorn Acrylic Keychain Plush Doll Cute Toy
$25.40
Heidelberg Printing Press Automatic Blanket Wash Cloth - Non-Woven Cleaning Fabric, 500m Roll
$3,185.00
Bucket Pack Natural Wood Colored Pencils Water-Soluble for Kids Coloring and Doodling
$6.65
Chunfei Grocery Store Yunm'an GR02 Gravel Bike - Thru-Axle Disc Brake, Lightweight Touring with Multiple Rack Mounts
$6,444.00
Variable Frequency Drive Power Board ZPOW-591 for ACS880
$2,200.00
Professional Sketching Eraser Kit - Blending Stumps, Sponges, and Paper Tortillons for Highlight & Shadow Correction
$3.90
Weighted Water Bag with Handle, Thickened PV Mesh Gravity Ballast for Banner Stand Fixation (8KG)
$35.10
Ultra-Fine Purification Lint-Free Cloth Cleaning Cloth Lens Wipe High Quality 0730 Water-Absorbing Dust Removal UV Nozzle 100 Sheets
$96.00
Wen Zhengming Small Regular Script Calligraphy Cards: Li Sao Jing, Thousand Character Classic, Qin Fu, Cao Tang Shi Zhi, Qing Jing Jing, Record of the Drunken Pavilion, Red Cliff Ode
$59.00
Zhizhi Manshu Zhao Mengfu Small Regular Script Collection of Ancient Classics (Vol. 1) - Calligraphy Copybook, Brush Writing Cards, Foldable Practice Cards
$49.00
Language of Drums Motion Path Set - Essential Creativity and Rhythm Teaching Material for Drum Kits and Jazz Drums
$59.14
onlycook Sink Drain Basket, Faucet-Mounted Food Residue Separator and Washing Strainer - 1 Pack
$14.10
Heavy-Duty Wiper Arms and Blades for Trucks and Agricultural Vehicles - Universal Replacement Wiper Rubber Strips
$5.50
Bus Adapter FEPL-02 for ABB Variable Frequency Drive
$1,230.00
![[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)
