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SHT-40 Temperature and Humidity Sensor
High-accuracy digital humidity and temperature sensor with ultra-low power operation
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Measures humidity (±1.8 %RH) and temperature (±0.2 °C) via I²C interface
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Operates from 0–100 %RH and –40 °C to +125 °C range
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Consumes only 0.4 µA average current at 1 Hz measurement rate
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Key Features
- High-accuracy digital humidity and temperature sensing using I²C interface
- Ultra-low power operation ideal for IoT and portable applications
- Reliable performance in condensing and harsh environments
- Integrated variable power heater for effective moisture management
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Applications
- Weather monitoring and climate sensing systems
- HVAC and air quality management in buildings
- Smart agriculture and greenhouse control
- IoT and industrial environmental monitoring devices
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Specifications
- Relative Humidity Accuracy: ±1.8 %RH (typical)
- Temperature Accuracy: ±0.2 °C (typical)
- Supply Voltage: 3.3 V to 5 V
- Average Current Consumption: 0.4 µA (1 Hz measurement rate)
- Idle Current: 80 nA
- Communication Interface: I²C (Fast Mode Plus, CRC checksum)
- Operating Range: 0–100 %RH, –40 °C to +125 °C
- Default I²C Address: 0x44