7Semi SHT20 Humidity and Temperature Sensor Probe I2C (Plastic) w/ 1m Cable

The sensor requires a supply voltage between 2.1V and 3.6V DC. It is designed for 3.3V logic systems and is not 5V tolerant. For use with 5V microcontrollers like some Arduino boards, a logic level converter or a voltage divider on the I2C lines is necessary to prevent damage.

Connect the probe's VCC (2.1-3.6V), GND, SDA, and SCL wires to your microcontroller's corresponding I2C pins. The SHT20 has a fixed I2C address (0x40). Use standard I2C library functions to send measurement commands and read the 14-bit temperature and 12-bit humidity data registers, which are returned as calibrated digital values.

Yes, the SHT20 sensor is factory-calibrated and provides linearized digital output. Typical accuracy is ±0.3°C for temperature and ±3% RH for humidity across a wide range. No user calibration is required for most applications, ensuring reliable plug-and-play operation.

The plastic ventilated probe housing protects the sensitive MEMS sensing element from dust and direct condensation while allowing air to circulate freely. This design ensures a fast response time to changes in ambient temperature and humidity, making it suitable for dynamic environmental monitoring.