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GY-21 HTU21D Digital Temperature Humidity Sensor Module High Precision I2C IIC Breakout Board 3.3V Environmental Monitoring Module for Weather Station Humidor Control and Greenhouse Monitoring
- Uses an HTU21D high-precision sensing chip for digital temperature and humidity measurement.
- Features a standard I2C/IIC digital communication interface for connection with compatible microcontroller projects.
- Operates at 3.3V to help avoid overvoltage damage during integration.
- Measures temperature across a -40 to +125 range for environmental monitoring applications.
- Supports humidity measurement from 0%RH to 100%RH for tracking a wide range of conditions.
- Compact GY-21 breakout board design helps simplify integration into embedded electronic projects.
- Low-power design supports long-term continuous temperature and humidity monitoring.
- Suitable for weather station, humidor control, greenhouse monitoring, and indoor environmental detection.
- Compatible with Raspberry Pi projects when used through the supported I2C/IIC interface.
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Product Description:
GY-21 HTU21D digital temperature and humidity sensor module with a compact breakout board design for weather station, humidor control, greenhouse, and indoor environmental monitoring projects.
Core Selling Points:
Uses an HTU21D high-precision sensing chip for stable temperature and humidity measurement. The standard I2C/IIC digital interface supports simple MCU integration, while the 3.3V design and low power consumption suit continuous monitoring applications. Compact form factor helps with embedded DIY electronic projects.
Technical Specifications:
Model: GY-21 (HTU21D). Chip: HTU21D. Interface: I2C / IIC. Operating Voltage: 3.3V. Temperature Range: -40 ~ +125. Humidity Range: 0%RH ~ 100%RH.
Before Purchase:
Requires a 3.3V I2C/IIC connection. Compatible with Raspberry Pi and other microcontroller DIY projects. Confirm your controller interface and voltage requirements before purchase.
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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Return Policies
- Return for refund within: 30 days
- Return for replacement within: non-replaceable
- This item is covered by GeekSpace Return Policy
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