Adafruit Sensirion SHT45 Precision Temperature & Humidity Sensor Module - I2C Interface
The Adafruit Sensirion SHT45 is a high-precision temperature and humidity sensor module featuring a true I2C interface for seamless integration with Arduino, Raspberry Pi, ESP32, and other 3.3V/5V microcontrollers.
Features
- High Accuracy: ±1.0% RH (25-75%) and ±0.1°C (0-75°C) typical.
- True I2C Interface: Simplified two-wire communication with default address 0x44 and CRC.
- Wide Voltage Range: Operates from 3.3V to 5V DC with onboard voltage regulation.
- Ultra-Low Power: Average current consumption of 0.4 µA for battery-powered applications.
- Robust Operating Range: Functions from -40 to 125°C and 0-100% RH, including condensing environments.
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The SHT45 represents Sensirion’s fourth-generation digital humidity and temperature sensor, building upon the legacy of the SHT1x series with enhanced precision and a dedicated I2C interface. It utilizes a capacitive polymer sensing element for humidity and a band-gap sensor for temperature, delivering calibrated digital output via a robust communication protocol.
The Adafruit breakout board incorporates essential signal conditioning, including a voltage regulator and level shifting circuitry, ensuring stable performance across 3.3V and 5V logic systems. This module is designed for demanding environmental monitoring applications where long-term stability and accuracy are critical.
Additional Information
| Weight | 0.005 kg |
|---|---|
| Dimensions | 2.55 × 1.77 × 0.48 cm |














