SHT45 Digital Temperature & Humidity Sensor Probe
The SHT45 Sensor Probe is a digital temperature and relative humidity sensor designed for environmental monitoring and embedded applications. It provides typical accuracy of ±0.1°C for temperature and ±1.0% RH for relative humidity. The probe communicates through an I²C interface with a fixed address of 0x44, allowing straightforward integration with microcontrollers and data acquisition systems.
The sensor supports a 0–100% RH measurement range and operates over a temperature range of −40°C to +110°C. An integrated heater provides multiple heating levels for applications where condensation or high humidity may affect measurements. The probe includes a breathable protective membrane
Key Features
- Temperature & Humidity Measurement: Measures both temperature and relative humidity using a digital sensing element.
- I²C Digital Interface: Communicates through I²C with a fixed 0x44 address for integration with compatible controllers.
- Low Power Operation: Suitable for embedded and battery-powered monitoring applications.
- Integrated Heater: Includes an internal heater with multiple heating levels for managing condensation and high-humidity conditions.
- Protective Membrane: Breathable membrane provides environmental protection while allowing temperature and humidity sensing.
Resources
- SHT45 Datasheet
- Github link for Arduino Library
- Enviroment sensors:
- Enviroment sensors
- Communication interface:
- I2C
- I2C address:
- 0x44
- Operational voltage:
- VIN -: 1.08V to 3.6V
- integrated heater:
- YES
- Operational Temperature:
- -40C to 110C
- Recomended Temperature range:
- 5C to 60C
- Temperature accuracy:
- 0.1C
- Humidity range:
- 0 to 100%RH
- Recomended Humidity range:
- 20 %RH to 80 %RH
- Humidity accuracy:
- 1.0%RH
- %RH Long term drift:
- 0.2%RH/year
- Cable length:
- 1Meter
