The SHT45 Digital Humidity and Temperature Sensor Probe delivers highly precise environmental measurements with an accuracy of ±0.1°C for temperature and ±1% RH for humidity. It features a capacitive polymer sensing element, 16-bit resolution, and an I²C interface for easy integration with microcontrollers. The probe includes a 1-metre cable and supports a measurement range of −40°C to +80°C and 0% to 100% RH. It is ideal for HVAC systems, greenhouses, weather stations, indoor climate control, and other precision monitoring applications.
Recommended Operating Conditions
The sensor shows best performance when operated within the recommended normal temperature and humidity range of 5 °C … 60 °C and 20 %RH … 80 %RH, respectively. Long term exposure to conditions outside recommended normal range, especially at high relative humidity, may temporarily offset the RH signal
Features
- Superior accuracy: ±1.0% RH and ±0.1°C.
- Measures 0–100% RH and −40°C to +125°C.
- Ultra-low power consumption for battery-powered applications.
- Fast I²C communication with 16-bit output and CRC checking.
- Protective ventilated metal probe housing enables reliable exposure to surrounding air.
- Extended cable allows remote sensing away from the main controller or enclosure.
- Four-wire I²C interface provides easy connection to microcontrollers and development boards.
Resources
- Category of product:
- Digital temprature & humidity sensor
- Operational Voltage:
- 1.08 V DC to 3.6V DC (Typically 3.3V)
- Temperature sensing range:
- -40C to +80C
- Temprature measurement accuracy:
- +/- 0.1C
- Humidity sensing range:
- 0 TO 100% RH
- Humidity measurement accuracy:
- +/-1.0% RH
- Communication interface:
- I2C (Address 0X44)
