The SHT40 Digital Humidity and Temperature Sensor Probe delivers precise and reliable environmental measurements with an accuracy of ±0.2°C for temperature and ±1.8% RH for humidity. It features a capacitive polymer sensing element and a 16-bit resolution for stable measurements across a temperature range of −40°C to +80°C and a humidity range of 0% to 100% RH. The I²C interface enables easy integration with microcontrollers and other digital systems, while the 1-metre cable allows flexible installation. It is ideal for HVAC systems, greenhouses, weather stations, indoor climate monitoring, and other environmental sensing 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
- High accuracy: ±1.8% RH and ±0.2°C.
- Measures 0–100% RH and −40°C to +80°C.
- Ultra-low power consumption with only 0.4 µA average current.
- Fast I²C interface with CRC data protection.
- Integrated heater for reliable operation in high-humidity environments.
- 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 sensor
- Temprature measurement Range:
- -40C to +80C
- Temprature measurement accuracy:
- +/- 0.2C
- Humidity measurement Range:
- 0 TO 100%RH
- Humidity measurement accuracy:
- +/- 1.8%RH
- Operational voltage:
- 1.08 V DC to 3.6V DC (Typically 3.3V)
- Communication interface:
- I2C (Address 0x44)
