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AJMRTC GY-21 HTU21D I2C Digital Temperature Humidity Sensor Module, High Precision Breakout Board, 3.3V IIC Interface, Weather Station Humidor Monitoring DIY Electronic Projects
- - Adopts HTU21D high-precision sensor chip, supports accurate temperature and humidity measurement with stable performance
- - I2C (IIC) digital communication interface, 3.3V operating voltage, easy to connect with MCU, Arduino and Raspberry Pi
- - Compact GY-21 breakout board design, small size for embedded, weather station and humidor control applications
- - Wide measuring range, good anti-interference ability, replaces SHT21 sensor for environmental monitoring tasks
- - Simple wiring and low power consumption, ideal for DIY greenhouse, indoor humidity and temperature detection projects
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AJMRTC GY-21 HTU21D digital temperature and humidity breakout module features the HTU21D high precision sensing chip. It communicates via standard I2C(IIC) bus and works at 3.3V to avoid overvoltage damage. This module delivers reliable temperature and humidity readings with strong environmental adaptability. Perfect for building weather stations, humidor control systems, greenhouse monitoring and indoor environmental detection. The small breakout board is easy to integrate into Arduino, Raspberry Pi and other microcontroller DIY projects, with low power consumption for long-term continuous monitoring.
- Brand: AJMRTC
- Model: GY-21 (HTU21D)
- Interface: I2C / IIC
- Operating Voltage: 3.3V
- Chip: HTU21D
- Temperature Range: -40 ~ +125
- Humidity Range: 0%RH ~ 100%RH
- Application: Weather station, humidor, greenhouse, environmental monitoring
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: 30 days
- This item is covered by ThermalNest Return Policy
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