Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Sensor Type | NDIR (Non-Dispersive Infrared) |
| Measurement Range | 400 ppm to 5000 ppm CO2 |
| Accuracy | ±(40 ppm + 5% MV) typical |
| Interface | I2C Communication Protocol |
| Supply Voltage | 2.4V to 5.5V DC |
| Operating Temperature | -10°C to +60°C |
| Dimensions | 10.0 x 10.0 x 6.5 mm |
| Additional Sensors | Integrated Temperature and Humidity |
| Calibration | Automatic Self-Calibration (ASC) |
| Package Content | 1x SCD40/SCD41 Module, 1x Pin Header |
Anonymous
Mar 29, 2026
Rating: 5/5
Compact and Reliable
Love how small this is compared to older MH-Z19 sensors. It fits perfectly in my compact enclosure. The added temperature and humidity data is a nice bonus.
Anonymous
Mar 23, 2026
Rating: 4/5
Great accuracy, needs warm-up time
The sensor provides very consistent data for my greenhouse monitoring system. Just remember it needs about 7 days of continuous operation for the automatic calibration to fully optimize.
Anonymous
Mar 21, 2026
Rating: 5/5
Industrial grade performance
We deployed ten of these in our office building for HVAC optimization. They have been running flawlessly for three months with no drift detected.
Anonymous
Mar 12, 2026
Rating: 5/5
Low power consumption
Ideal for battery-powered applications. The low power mode works great, allowing my device to run for weeks on a single charge while still logging CO2 levels periodically.
Anonymous
Mar 12, 2026
Rating: 4/5
Good value for money
Solid sensor for the price point. Documentation is clear, and the library support for Arduino and Python is excellent. Only wish the cable was included.
Anonymous
Mar 06, 2026
Rating: 5/5
Perfect for IoT Air Quality Projects
This module is incredibly easy to integrate with my ESP32 setup. The I2C communication is stable, and the readings match my reference meter almost perfectly. Highly recommended for hobbyists.
Q: Can I use this with a 3.3V microcontroller?
A: Yes, the module operates within a voltage range of 2.4V to 5.5V, making it fully compatible with both 3.3V and 5V logic systems like ESP32, Raspberry Pi, and Arduino.
Q: What is the difference between SCD40 and SCD41?
A: The primary difference is accuracy. The SCD41 offers slightly higher accuracy (±(30 ppm + 3% MV)) compared to the SCD40 (±(40 ppm + 5% MV)). Both share the same form factor and interface.
Q: Is the pin header soldered onto the board?
A: No, the module typically comes with an unsoldered pin header strip included in the package, allowing you to choose between straight or right-angle mounting based on your project needs.
Q: Does this module require manual calibration?
A: No, the SCD40/SCD41 features Automatic Self-Calibration (ASC). However, for best results, it should be exposed to fresh air (approx. 400 ppm) for at least 7 days during initial setup.
Q: How long does it take to get the first reading after power-on?
A: The sensor requires a startup time of approximately 1 minute before the first valid CO2 measurement is available. Temperature and humidity readings may be available slightly sooner.
Multi-Color Detachable Water Bucket Stand - Office Purified Water Dispenser Holder (Inverted)
$60.95
Oil-Based Original Strong Fast-Drying Adhesive for Metal, Plastic, Rubber, Ceramics, and Wood, Multi-Purpose Transparent Glue (Not 502)
$21.60
Jay Chou - Feng BROTHER_CHAO Piano Accompaniment Sheet Music
$50.00
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
![[Youxin Electronics] GP2Y0E03 Infrared Distance Sensor Module 4-50cm Range](https://www.gosteppe.com/cache/medium/product/74667/legacy-main-4da8cadc5fc82afe91b124e3.webp)
![[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)
