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AJMRTC 5Pcs Si7021 GY-21 Digital Humidity Temperature Sensor Module, HTU21 SHT21 Low Power CMOS IC Board, Replacement for SHT11 SHT15 for Environmental Monitoring & IoT Projects
- - 5 pack GY-21 sensor module built with Si7021 chip, low power CMOS IC for temperature and humidity measurement
- - High precision digital I2C output, stable reading, direct replacement for SHT11, SHT15, SHT21 and HTU21 sensors
- - Low power consumption design, perfect for battery-powered IoT devices and long-term environmental monitoring
- - Wide working range, compact PCB board, simple pin definition for fast secondary development
- - Widely used for weather stations, smart home, greenhouse monitoring and embedded measurement projects
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AJMRTC GY-21 temperature and humidity sensor module adopts Si7021 low-power CMOS IC. It delivers high-precision digital temperature and humidity data via I2C interface. This module can directly replace SHT11, SHT15, SHT21 and HTU21 sensors. With outstanding low-power performance, it fits battery-operated equipment for continuous environmental data collection. Compact size and standard pin layout simplify wiring and integration into your projects. It is widely used in smart home systems, weather monitoring, greenhouse environment detection and electronic DIY development.
- Brand: AJMRTC
- Quantity: 5 Pcs
- Model: GY-21
- Chip: Si7021 (Low Power CMOS IC)
- Interface: I2C Digital Output
- Measured Parameters: Temperature & Humidity
- Replaceable Model: SHT11, SHT15, SHT21, HTU21
- Feature: Low Power, High Precision
- Application: IoT, Smart Home, Weather Station, Greenhouse 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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