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SCD40/SCD41 Gas Detect Sensor Module for CO2, Temperature, and Humidity Monitoring
For DIY enthusiasts and smart home tinkerers who want to monitor indoor air quality, this SCD40/SCD41 sensor module is your tool for building a healthier living space. While many focus on security cameras, this device tackles a hidden concern: the air you breathe daily, especially in home offices or kids' rooms where CO2 buildup can affect focus and comfort.
The sensor's high accuracy means you'll notice subtle changes in CO2 levels before you feel drowsy, giving you data to adjust ventilation. Its integrated temperature and humidity sensors automatically compensate for environmental factors, ensuring reliable readings without manual calibration. With low power consumption and a compact design, it easily integrates into projects using the I2C interface, from HVAC systems to Alexa-compatible setups for real-time alerts.
Features
- Integrated temperature and humidity sensor for automatic compensation
- Compact and versatile design for easy integration
- Low power consumption ideal for energy-sensitive setups
- Broad supply voltage range for flexible power sources
- I2C interface protocol for connectivity
- High CO2 detect accuracy with advanced sensing technology
General specs
- Model: SCD40/SCD41
- Seller: Banggood
- ID: 2038457
- Model: SCD40, SCD41
- Features: High CO2 detect accuracy, Integrated temperature and humidity sensor, Compact and versatile design, Low power consumption, Broad supply voltage range
- Pin Spacing: 0.1 inches
- Interface type: I2C protocol
- Dimensions Module: 3.15 x 2.36 x 1.18 inches
- Temperature Range: Integrated compensation with onboard sensor
- Interval Measurement: 1 measurement per 5 minutes
- Range Supply Voltage: 2.4-5.5V
- Co2 Measurement Range: 400-2000 ppm, 400-5000 ppm
- Humidity Range Relative: 0-95% RH
- Accuracy Co2 Measurement: ±50 ppm ±5% MV, ±40 ppm ±5% MV
- Average Consumption Power: 0.4 mA @ 5V
- Accuracy Humidity Relative: ±6% RH typical
- First listed by seller: 2/23/26
If you are interested in more details, you can find full information on the seller's page.
$17.84
Last price update: 5/9/26
Available to order
Price History for seller Banggood
Shipping options
Delivery to 
Russia
Russia
Available
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| Brand | Y-KOOK | Aurikall | Jiawu | Acenew | ||
| Model | SCD40/SCD41 | ENS160+AHT21 | ||||
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| Rating | ||||||
| Price | $17.84 | $25.62 | $13.84 | $48.49 | $40.62 | $39.99 |
| Seller | Banggood | Joom | Banggood | Amazon | Amazon | Amazon |
| Update | May 9, 2026 | Feb 12, 2026 | May 9, 2026 | May 29, 2026 | May 20, 2026 | May 29, 2026 |
| Features | High CO2 detect accuracy, Integrated temperature and humidity sensor, Compact and versatile design, Low power consumption, Broad supply voltage range | 3-in-1 Functionality | Digital multi-gas sensor, Integrated sensor measurement and heater drive control, Pre-calibrated sensor fusion, Automatic baseline correction algorithm, High resistance to siloxane and humidity, No software library required, Safe for daily use, Flexible and robust design | |||
| Co2 Measurement Range | 400-2000 ppm, 400-5000 ppm | 0-5000 PPM | 400-5000 ppm | |||
| Operating Humidity | 5 to 95% RH | 20% to 85% | 0-85% RH | |||
| Operating Temperature | -40 to 185 °F | 14°F to 122°F | 32-122 °F | |||
| Weight | 6.3 oz | Not specified | 0.33 lbs | |||
| Dimensions | 5.5 x 3.3 x 1.1 inches | Compact egg shape | 3.2 x 3.2 x 1.2 in | |||
| Connectivity | WiFi | WiFi, TUYA app | WiFi (2.4 GHz) | |||
| Power Source | 2000 mAh battery | USB rechargeable, 800mAh lithium ion battery | USB (DC 5V) | |||
Gas Detect Sensor Module for CO2, Temperature, and Humidity Monitoring
$17.84
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