The SHT4x is a digital relative humidity and temperature sensor platform engineered for high-accuracy applications with an ultra-low power budget (0.4 µW). Featuring an I²C interface with multiple preconfigured addresses, a 3-level power-trimmed internal heater, and optional patented PTFE membrane protection, it delivers robust performance in condensing environments alongside ISO 17025 certified calibration.
RH Accuracy ±1.0 %RH
Temp Accuracy ±0.1 °C
Supply Voltage 1.08 V – 3.6 V
Current Draw 0.4 µA Avg | 80 nA Idle
Interface I²C FM+ (CRC Checksum)
Operating Range 0–100 %RH | -40 to 125 °C
Package & Protection
4-pin DFN (SMT) with optional patented PTFE membrane or removable protective cover
Integrated Heater
Power-trimmed internal heater with 3 heating levels for condensing environments
Certifications & Calibration
ISO 17025:2017 certified (3-point temp cal) with unique serial numbers | True NIST-traceable
The SHT41-AD1B-R2 is a high-precision digital temperature and relative humidity sensor housed in a ultra-compact DFN-4 package. Featuring an I²C digital interface and an extended operating supply range (1.08V to 3.6V), it provides ultra-low power consumption and reliable performance across extreme temperatures from -40°C to 125°C.
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