SparkFun Si7021 Humidity & Temperature Sensor Breakout Board
Compact SparkFun Si7021 sensor board for accurate humidity & temperature measurement via I2C.
The SparkFun Si7021 Humidity & Temperature Sensor Breakout Board provides highly accurate digital measurements of both humidity and temperature, making it ideal for environmental sensing and data logging applications. This ultra-compact breakout board is designed around the Si7021 sensor, ensuring precise and reliable performance in various conditions.
Key features include built-in 4.7kohm pullup resistors, simplifying integration into your circuits, and I2C communication, allowing seamless connectivity with microcontrollers and other digital systems. The small form factor (15.2x15.2mm) makes it suitable for compact projects and embedded applications.
Applications
This breakout board is perfect for indoor climate monitoring, weather stations, home automation, and any project requiring accurate environmental sensing. Whether you're a hobbyist or a professional, this sensor provides the data you need to enhance your projects.
Specifications
- Sensor Type: Si7021
- Measurement Parameters: Humidity & Temperature
- Communication Interface: I2C
- Pullup Resistors: 4.7kohm (built-in)
- Board Dimensions: 15.2x15.2mm
- Included: Sensor breakout board only
Need larger quantities? Need additional quantities? Get in touch and we'll arrange it for you.
- Dispatched within 0-2 business days
- Delivery to Worldwide: 6-7 business days*
- Free Shipping Included
- Environmental sensing
- Data logging
- Indoor climate monitoring
- Weather stations
- Ask Claude, ChatGPT or Perplexity to find the right tool, with our live prices and stock.
- Get a ready-made basket: one link puts everything in your basket here.
- You always pay securely here: your assistant never sees your card.
- Sensor Model: Si7021
- Measurement: Humidity & Temperature
- Communication: I2C interface
- Integrated Resistors: 4.7kohm
- Dimensions: 15.2x15.2mm
- Contents: Sensor breakout board only
- Weight: 10g
Always follow local regulations and product guidance.
Free standard delivery on Canadian mainland orders. Express delivery options and international shipping available at checkout.
We offer a 30-day money-back guarantee on most products. For faulty items, contact us within 14 days for a replacement or refund.
View Full Delivery & Returns PolicySecure Transactions
We take utmost care with your payment and personal details. Our website uses advanced encryption technology, including Secure Sockets Layer (SSL), to protect your information during transmission. You can verify a secure connection by looking for 'https' and a locked padlock in your browser.
Cookie Policy
Cookies enhance your shopping experience by keeping track of your cart and remembering you when you return. We also use banner advertising based on your browsing history to present products of potential interest.
Security Warning
Beware of phishing scams! We will never ask for personal details via email. If such information is required, we'll ask you to contact us by phone. If you receive an email requesting sensitive information, do not respond and let us know immediately.
Similar Products
You might like
