Adafruit Sensirion SHT45 Precision Temperature & Humidity Sensor

Sensirion Temperature/Humidity sensors are some of the finest & highest-accuracy devices you can get. And finally, we have some that have a true I2C interface for easy reading. The SHT45 sensor is the fourth generation (started at the SHT10 and worked its way up to the top!). The SHT45 has an excellent ±1.0% typical relative humidity accuracy from 25 to 75% and ±0.1°C typical accuracy from 0 to 75 °C. Unlike some earlier SHT sensors, this sensor has a true I2C interface for easy interfacing with only two wires (plus power and ground!). Thanks to the voltage regulator and level shifting circuitry we've included on the breakout It is also is 3V or 5V compliant, so you can power and communicate with it using any microcontroller or microcomputer.

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Features:

1. High Accuracy: ±1.0% relative humidity accuracy (25 to 75%) and ±0.1°C temperature accuracy (0 to 75 °C).
2. I2C Interface: True I2C communication for easy interfacing using only two wires, plus power and ground.
3. Voltage Compatibility: Operates at both 3V and 5V, allowing compatibility with various microcontrollers and microcomputers.
4. Fourth Generation Sensor: Advanced design building on previous generations (starting from SHT10).
5. Built-in Circuitry: Integrated voltage regulator and level shifting for reliable operation across different power levels.

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Specifications:

1. Accuracy: ΔRH = ±1.0 %RH; ΔT = ±0.1 °C.
2. Voltage: Operates at 3.3V to 5V.
3. Current: Avg. current: 0.4 µA; Idle current: 80 nA (excluding regulator quiescent).
4. I2C: I2C FM+ with default address 0x44 and CRC checksum.
5. Operating Range: 0–100 %RH; −40 to 125 °C; functional in condensing environments.
6. Certification: NIST-traceability, JEDEC JESD47 qualification, ISO 17025:2017 calibration certificate.
7. Dimensions: 25.5mm x 17.7mm x 4.8mm (1.0" x 0.7" x 0.2").

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Package Includes:

1 x Adafruit Sensirion SHT45 Precision Temperature &amp