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.
Paint Spray Catalytic Combustion Equipment - Industrial Exhaust Gas Treatment Device - Activated Carbon Adsorption/Desorption CO Catalytic Combustion
$324,999.00
Car Wheel Tire Bolt Rust-Proof Cap Universal Size 17 19 21 Decorative Dust-Proof Protective Cap Cover
$15.70
Commercial Electric Vegetable Slicer - Multi-Function Stainless Steel Machine for Potatoes and Canteens
$2,017.28
Irregular Ticket Stub Watercolor Paper Stamp Blank Drawing Paper 300g Cotton Pulp Fine Texture Thickened with Serrated Edges Specialized Paper for Art Students
$5.60
Stainless Steel Electric Buffet Warmer with Visible Lid - Square Flip-Top Chafing Dish for Hotels
$251.70
Baohong Cotton Pulp Watercolor Paper Pad 300g Cold/Hot Press, Glued on Four Sides, 16K/8K - Premium Full Cotton Art Paper for Oil Pastels and Professional Artists (Baoding, China)
$17.00
ORDER Industrial Large Roll Wiper Paper Dispenser, TORK Multi-Convenience Roll Stand
$170.00
Lifting Chain Slings Manufacturer, MHU Lifting Gear, G80 Manganese Steel Hoisting Chains, Single and Double Leg Sets
$835.00
Multi-Function Bathroom Storage Rack for Toilet, Washroom, and Sanitary Supplies, Over-Toilet Home Organizer
$20.30
Portable Travel Art Set for Kids - Watercolor Paint Box with Sketchbook and Mini Drawing Board
$9.05
Pneumatic Fitting PU Straight Connector Quick-Insert Plastic High-Pressure Air Hose Fitting PU-4681012
$4.90
Chain Sling Lifting Shackle Steel Chain Single Leg with Hooks on Both Ends for Towing, 2m Length, 5 Ton Capacity
$79.00
Large Brush Set Supply - Watercolor Pen Set for Children's Day Painting, Art, and Coloring
$25.55
Non-Bleeding Liquid Candle Dye - Macaron Colors for Soy Wax DIY Aromatherapy Candles
$21.00
Alloy Wheel Lug Nut Caps Compatible with Buick Excelle, Verano, Regal, LaCrosse, Encore, Cruze, Malibu, and GL8
$3.40
![[Damai Holds Micro-Needle Hair Transplant Patent] AI Robot Precision Hair Transplant | 1000 Units Hairline Planting](https://www.gosteppe.com/cache/small/product/269438/legacy-main-d695e1be3b1b8212f24ac863.webp)
[Damai Holds Micro-Needle Hair Transplant Patent] AI Robot Precision Hair Transplant | 1000 Units Hairline Planting
$24,990.00
Premium Ceramic Tea Canister Packaging Box, Empty Gift Box for Black Tea, Pu'er, White Tea, Biluochun, Gift Set Empty Box
$104.95
Thickened 304 Stainless Steel Planter Box for Home Balcony Vegetable Gardening - Rectangular Large Flower Pot for Rooftop Planting
$204.00
Zhongheng Car Tire Stone Hook - Multi-Function Tire Cleaner Tool to Prevent Blowouts
$7.14
JoanMiro 3D Printing Pen for Kids, Low-Temperature 3D Stereoscopic Drawing Toy, Perfect Gift for Boys and Girls on Children's Day
$29.90
Stainless Steel Tire Stone Removal Hook - Multi-Function Car Tire Cleaning Tool for Picking and Scraping Stones
$5.03
Cart Cover Rice Husk Charcoal Premium Plant Ash Grain Shell Carbon Natural Organic Fertilizer for Vegetables Succulents and Flowers
$6.55
Aojilong Automotive Plastic Restorer – Revives Black Trim, Repairs Aging, Crystal Coating Finish
$28.80
Hotel Meat Warmer Lamp - Buffet Heating Light for Cafeterias and Restaurants
$5,989.00
Topmodel Children's Watercolor Coloring Book Set with Pens, Baby Graffiti Sketchbook, Fill-in Storybook 3073
$119.09
Children's Potty Training Seat for Boys and Girls, Toddler Toilet Trainer with Urinal Bucket
$17.90
265/70R17 AT Off-Road Tire, Also Available in 205/215/225/235/45/50/55/60R18/20 High-Performance Sizes for 19-inch Wheels
$898.00
CANDLE.LAB | Silver Metal and Wood Wick Centering Device - DIY Tool for Aromatherapy Container Candles
$2.50
Custom Solid Wood Plaque - Antique Style Wooden Storefront Sign, Door Plaque, Carved Wood Board with Arched Couplets
$50.00
Industrial Scouring Pads - Stainless Steel Brushing and Rust Removal for Iron Plates - Heavy-Duty Kitchen Cleaning and Polishing
$17.62
![[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)
