Sensirion SHT35-DIS-F2.5KS Humidity & Temperature Sensor, 0 to 100%RH, −40°C to +125°C, ±1.5%RH, I2C Interface, DFN-8 Package

The SHT35-DIS-F2.5KS operates from a wide supply voltage range of 2.4V to 5.5V DC. This makes it directly compatible with both 3.3V and 5V microcontroller systems like Arduino, Raspberry Pi, ESP32, and STM32 without requiring a level shifter.

The sensor uses a standard I2C (Inter-Integrated Circuit) protocol. You need to connect the SDA (data) and SCL (clock) lines to your microcontroller's corresponding I2C pins, along with power (VDD) and ground (GND). The sensor has a selectable I2C address, and Sensirion provides detailed datasheets with command sets for initiating measurements and reading data.

The SHT35-DIS-F2.5KS is a fully calibrated digital sensor. It provides immediate, accurate humidity and temperature readings directly from the chip without requiring any user calibration. This plug-and-play functionality simplifies integration and ensures consistent performance.

The integrated heater is used for diagnostic purposes and to recover from condensation events. It can briefly heat the sensing element to evaporate any condensation, ensuring the sensor returns to accurate operation quickly. It can also be used for simple functionality checks.

Yes, its wide operating temperature range of -40°C to +125°C and robust design make it suitable for demanding applications. However, for prolonged outdoor use, it must be placed within a protective enclosure that allows air exchange while shielding it from direct water ingress and UV exposure, as the DFN package itself is not IP-rated.